[PATCH 03/16] cryptodev/bcmfs: fix mis-matched free

[PATCH 03/16] cryptodev/bcmfs: fix mis-matched free

[Stephen Hemminger]

The device structure is allocated with rte_malloc() and
then incorrectly freed with free(). This will lead to
corrupt malloc pool.

Bugzilla ID: 1552
Fixes: c8e79da7c676 ("crypto/bcmfs: introduce BCMFS driver")
Cc: vikas.gupta@broadcom.com
Cc: stable@dpdk.org

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
---
 drivers/crypto/bcmfs/bcmfs_device.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/crypto/bcmfs/bcmfs_device.c b/drivers/crypto/bcmfs/bcmfs_device.c
index ada7ba342c..46522970d5 100644
--- a/drivers/crypto/bcmfs/bcmfs_device.c
+++ b/drivers/crypto/bcmfs/bcmfs_device.c
@@ -139,7 +139,7 @@ fsdev_allocate_one_dev(struct rte_vdev_device *vdev,
 	return fsdev;
 
 cleanup:
-	free(fsdev);
+	rte_free(fsdev);
 
 	return NULL;
 }
@@ -163,7 +163,7 @@ fsdev_release(struct bcmfs_device *fsdev)
 		return;
 
 	TAILQ_REMOVE(&fsdev_list, fsdev, next);
-	free(fsdev);
+	rte_free(fsdev);
 }
 
 static int
-- 
2.45.2

[PATCH 04/16] dma/ixd: fix incorrect free function in cleanup

[Stephen Hemminger]

The data structure is allocated with rte_malloc and incorrectly
freed in cleanup logic using free.

Bugzilla ID: 1549
Fixes: 9449330a8458 ("dma/idxd: create dmadev instances on PCI probe")
Cc: kevin.laatz@intel.com
Cc: stable@dpdk.org

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
---
 drivers/dma/idxd/idxd_pci.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/dma/idxd/idxd_pci.c b/drivers/dma/idxd/idxd_pci.c
index 81637d9420..f89e2b41ff 100644
--- a/drivers/dma/idxd/idxd_pci.c
+++ b/drivers/dma/idxd/idxd_pci.c
@@ -301,7 +301,7 @@ init_pci_device(struct rte_pci_device *dev, struct idxd_dmadev *idxd,
 	return nb_wqs;
 
 err:
-	free(pci);
+	rte_free(pci);
 	return err_code;
 }
 
-- 
2.45.2

[PATCH 05/16] event/cnxk: fix pointer mismatch in cleanup

[Stephen Hemminger]

The code to cleanup in case of error was passing incorrect
value to rte_free. The ports[] entry was allocated with
rte_malloc and that should be used instead of the offset
in that object.

Fixes: 97a05c1fe634 ("event/cnxk: add port config")
Cc: sthotton@marvell.com
Cc: stable@dpdk.org

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
---
 drivers/event/cnxk/cnxk_eventdev.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/event/cnxk/cnxk_eventdev.c b/drivers/event/cnxk/cnxk_eventdev.c
index 4b2d6bffa6..08c6ce0c07 100644
--- a/drivers/event/cnxk/cnxk_eventdev.c
+++ b/drivers/event/cnxk/cnxk_eventdev.c
@@ -121,8 +121,10 @@ cnxk_setup_event_ports(const struct rte_eventdev *event_dev,
 	return 0;
 hws_fini:
 	for (i = i - 1; i >= 0; i--) {
+		void *ws = event_dev->data->ports[i];
+
 		event_dev->data->ports[i] = NULL;
-		rte_free(cnxk_sso_hws_get_cookie(event_dev->data->ports[i]));
+		rte_free(ws);
 	}
 	return -ENOMEM;
 }
-- 
2.45.2

[PATCH 06/16] examples/vhost: fix free function mismatch

[Stephen Hemminger]

The pointer bdev is allocated with rte_zmalloc() and then
incorrectly freed with free() which will lead pool corruption.

Bugzilla ID: 1553
Fixes: c19beb3f38cd ("examples/vhost_blk: introduce vhost storage sample")
Cc: jin.yu@intel.com
Cc: stable@dpdk.org

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
---
 examples/vhost_blk/vhost_blk.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/examples/vhost_blk/vhost_blk.c b/examples/vhost_blk/vhost_blk.c
index 03f1ac9c3f..9c9e326949 100644
--- a/examples/vhost_blk/vhost_blk.c
+++ b/examples/vhost_blk/vhost_blk.c
@@ -776,7 +776,7 @@ vhost_blk_bdev_construct(const char *bdev_name,
 	bdev->data = rte_zmalloc(NULL, blk_cnt * blk_size, 0);
 	if (!bdev->data) {
 		fprintf(stderr, "No enough reserved huge memory for disk\n");
-		free(bdev);
+		rte_free(bdev);
 		return NULL;
 	}
 
-- 
2.45.2

[PATCH 07/16] net/cnxk: fix use-after-free

[Stephen Hemminger]

The driver would refer to the mempool object after it was freed.

Bugzilla ID: 1554
Fixes: 7ea187184a51 ("common/cnxk: support 1-N pool-aura per NIX LF")
Cc: rbhansali@marvell.com
Cc: stable@dpdk.org

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
---
 drivers/net/cnxk/cnxk_ethdev_sec.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/cnxk/cnxk_ethdev_sec.c b/drivers/net/cnxk/cnxk_ethdev_sec.c
index 6f5319e534..e428d2115d 100644
--- a/drivers/net/cnxk/cnxk_ethdev_sec.c
+++ b/drivers/net/cnxk/cnxk_ethdev_sec.c
@@ -136,8 +136,8 @@ cnxk_nix_inl_custom_meta_pool_cb(uintptr_t pmpool, uintptr_t *mpool, const char
 			return -EINVAL;
 		}
 
-		rte_mempool_free(hp);
 		plt_free(hp->pool_config);
+		rte_mempool_free(hp);
 
 		*aura_handle = 0;
 		*mpool = 0;
-- 
2.45.2

[PATCH 08/16] bpf: fix free mismatch if convert fails

[Stephen Hemminger]

If conversion of cBF to eBPF fails then an object allocated with
rte_malloc() would be passed to free().

[908/3201] Compiling C object lib/librte_bpf.a.p/bpf_bpf_convert.c.o
../lib/bpf/bpf_convert.c: In function ‘rte_bpf_convert’:
../lib/bpf/bpf_convert.c:559:17: warning: ‘free’ called on pointer returned from a mismatched allocation function [-Wmismatched-dealloc]
  559 |                 free(prm);
      |                 ^~~~~~~~~
../lib/bpf/bpf_convert.c:545:15: note: returned from ‘rte_zmalloc’
  545 |         prm = rte_zmalloc("bpf_filter",
      |               ^~~~~~~~~~~~~~~~~~~~~~~~~
  546 |                           sizeof(*prm) + ebpf_len * sizeof(*ebpf), 0);
      |                           ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Fixes: 2eccf6afbea9 ("bpf: add function to convert classic BPF to DPDK BPF")
Cc: stable@dpdk.org
Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
---
 lib/bpf/bpf_convert.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/bpf/bpf_convert.c b/lib/bpf/bpf_convert.c
index d7ff2b4325..e7e298c9cb 100644
--- a/lib/bpf/bpf_convert.c
+++ b/lib/bpf/bpf_convert.c
@@ -556,7 +556,7 @@ rte_bpf_convert(const struct bpf_program *prog)
 	ret = bpf_convert_filter(prog->bf_insns, prog->bf_len, ebpf, &ebpf_len);
 	if (ret < 0) {
 		RTE_BPF_LOG_LINE(ERR, "%s: cannot convert cBPF to eBPF", __func__);
-		free(prm);
+		rte_free(prm);
 		rte_errno = -ret;
 		return NULL;
 	}
-- 
2.45.2

[PATCH 09/16] net/e1000: fix use-after-free

[Stephen Hemminger]

The driver cleanup code was freeing the filter object
then dereferencing it.

Bugzilla ID: 1550
Fixes: 6a4d050e2855 ("net/igb: flush all the filter")
Cc: wei.zhao1@intel.com
Cc: stable@dpdk.org

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
---
 drivers/net/e1000/igb_ethdev.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/net/e1000/igb_ethdev.c b/drivers/net/e1000/igb_ethdev.c
index 095be27b08..973d0d2407 100644
--- a/drivers/net/e1000/igb_ethdev.c
+++ b/drivers/net/e1000/igb_ethdev.c
@@ -3907,11 +3907,11 @@ igb_delete_2tuple_filter(struct rte_eth_dev *dev,
 
 	filter_info->twotuple_mask &= ~(1 << filter->index);
 	TAILQ_REMOVE(&filter_info->twotuple_list, filter, entries);
-	rte_free(filter);
 
 	E1000_WRITE_REG(hw, E1000_TTQF(filter->index), E1000_TTQF_DISABLE_MASK);
 	E1000_WRITE_REG(hw, E1000_IMIR(filter->index), 0);
 	E1000_WRITE_REG(hw, E1000_IMIREXT(filter->index), 0);
+	rte_free(filter);
 	return 0;
 }
 
@@ -4348,7 +4348,6 @@ igb_delete_5tuple_filter_82576(struct rte_eth_dev *dev,
 
 	filter_info->fivetuple_mask &= ~(1 << filter->index);
 	TAILQ_REMOVE(&filter_info->fivetuple_list, filter, entries);
-	rte_free(filter);
 
 	E1000_WRITE_REG(hw, E1000_FTQF(filter->index),
 			E1000_FTQF_VF_BP | E1000_FTQF_MASK);
@@ -4357,6 +4356,7 @@ igb_delete_5tuple_filter_82576(struct rte_eth_dev *dev,
 	E1000_WRITE_REG(hw, E1000_SPQF(filter->index), 0);
 	E1000_WRITE_REG(hw, E1000_IMIR(filter->index), 0);
 	E1000_WRITE_REG(hw, E1000_IMIREXT(filter->index), 0);
+	rte_free(filter);
 	return 0;
 }
 
-- 
2.45.2

[PATCH 11/16] net/cpfl: fix free of nonheap object

[Stephen Hemminger]

With proper annotation, GCC discovers that this driver is
calling rte_free() on an object that was not allocated
(it is part of array in another object).

In function ‘cpfl_flow_js_mr_layout’,
    inlined from ‘cpfl_flow_js_mr_action’ at ../drivers/net/cpfl/cpfl_flow_parser.c:848:9,
    inlined from ‘cpfl_flow_js_mod_rule’ at ../drivers/net/cpfl/cpfl_flow_parser.c:908:9,
    inlined from ‘cpfl_parser_init’ at ../drivers/net/cpfl/cpfl_flow_parser.c:932:8,
    inlined from ‘cpfl_parser_create’ at ../drivers/net/cpfl/cpfl_flow_parser.c:959:8:
../drivers/net/cpfl/cpfl_flow_parser.c:740:9: warning: ‘rte_free’ called on pointer ‘*parser.modifications’ with nonzero offset [28, 15479062120396] [-Wfree-nonheap-object]
  740 |         rte_free(js_mod->layout);
      |         ^~~~~~~~~~~~~~~~~~~~~~~~

Fixes: 6cc97c9971d7 ("net/cpfl: build action mapping rules from JSON")
Cc: wenjing.qiao@intel.com
Cc: stable@dpdk.org

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
---
 drivers/net/cpfl/cpfl_flow_parser.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/net/cpfl/cpfl_flow_parser.c b/drivers/net/cpfl/cpfl_flow_parser.c
index 40569ddc6f..30abaad7c8 100644
--- a/drivers/net/cpfl/cpfl_flow_parser.c
+++ b/drivers/net/cpfl/cpfl_flow_parser.c
@@ -737,7 +737,6 @@ cpfl_flow_js_mr_layout(json_t *ob_layouts, struct cpfl_flow_js_mr_action_mod *js
 	return 0;
 
 err:
-	rte_free(js_mod->layout);
 	return -EINVAL;
 }
 
-- 
2.45.2

[PATCH 12/16] raw/ifpga/base: fix use after free

[Stephen Hemminger]

The TAILQ_FOREACH() macro would refer to info after it
had been freed. Fix by introducing TAILQ_FOREACH_SAFE here.

Fixes: 4a19f89104f8 ("raw/ifpga/base: support multiple cards")
Cc: tianfei.zhang@intel.com
Cc: stable@dpdk.org

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
---
 drivers/raw/ifpga/base/opae_intel_max10.c | 11 +++++++++--
 1 file changed, 9 insertions(+), 2 deletions(-)

diff --git a/drivers/raw/ifpga/base/opae_intel_max10.c b/drivers/raw/ifpga/base/opae_intel_max10.c
index dd97a5f9fd..d5a9ceb6e3 100644
--- a/drivers/raw/ifpga/base/opae_intel_max10.c
+++ b/drivers/raw/ifpga/base/opae_intel_max10.c
@@ -6,6 +6,13 @@
 #include <libfdt.h>
 #include "opae_osdep.h"
 
+#ifndef TAILQ_FOREACH_SAFE
+#define TAILQ_FOREACH_SAFE(var, head, field, tvar) \
+	for ((var) = TAILQ_FIRST((head)); \
+		(var) && ((tvar) = TAILQ_NEXT((var), field), 1); \
+	(var) = (tvar))
+#endif
+
 int max10_sys_read(struct intel_max10_device *dev,
 	unsigned int offset, unsigned int *val)
 {
@@ -746,9 +753,9 @@ static int fdt_get_named_reg(const void *fdt, int node, const char *name,
 
 static void max10_sensor_uinit(struct intel_max10_device *dev)
 {
-	struct opae_sensor_info *info;
+	struct opae_sensor_info *info, *next;
 
-	TAILQ_FOREACH(info, &dev->opae_sensor_list, node) {
+	TAILQ_FOREACH_SAFE(info, &dev->opae_sensor_list, node, next) {
 		TAILQ_REMOVE(&dev->opae_sensor_list, info, node);
 		opae_free(info);
 	}
-- 
2.45.2

[PATCH 14/16] drivers/ifpga: fix free function mismatch

[Stephen Hemminger]

The raw ifpga driver redefines malloc to be opae_malloc
and free to be opae_free; which is a bad idea.

This leads to case where interrupt efd array is allocated
with calloc() and then passed to rte_free. The workaround
is to allocate the array with rte_calloc() instead.

Fixes: d61138d4f0e2 ("drivers: remove direct access to interrupt handle")
Cc: hkalra@marvell.com
Cc: stable@dpdk.org

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
---
 drivers/raw/ifpga/ifpga_rawdev.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/raw/ifpga/ifpga_rawdev.c b/drivers/raw/ifpga/ifpga_rawdev.c
index a972b3b7a4..86558c7b9b 100644
--- a/drivers/raw/ifpga/ifpga_rawdev.c
+++ b/drivers/raw/ifpga/ifpga_rawdev.c
@@ -1499,7 +1499,7 @@ ifpga_register_msix_irq(struct ifpga_rawdev *dev, int port_id,
 
 		nb_intr = rte_intr_nb_intr_get(*intr_handle);
 
-		intr_efds = calloc(nb_intr, sizeof(int));
+		intr_efds = rte_calloc("ifpga_efds", nb_intr, sizeof(int), 0);
 		if (!intr_efds)
 			return -ENOMEM;
 
@@ -1508,7 +1508,7 @@ ifpga_register_msix_irq(struct ifpga_rawdev *dev, int port_id,
 
 		ret = opae_acc_set_irq(acc, vec_start, count, intr_efds);
 		if (ret) {
-			free(intr_efds);
+			rte_free(intr_efds);
 			return -EINVAL;
 		}
 	}
@@ -1517,13 +1517,13 @@ ifpga_register_msix_irq(struct ifpga_rawdev *dev, int port_id,
 	ret = rte_intr_callback_register(*intr_handle,
 			handler, (void *)arg);
 	if (ret) {
-		free(intr_efds);
+		rte_free(intr_efds);
 		return -EINVAL;
 	}
 
 	IFPGA_RAWDEV_PMD_INFO("success register %s interrupt\n", name);
 
-	free(intr_efds);
+	rte_free(intr_efds);
 	return 0;
 }
 
-- 
2.45.2

[PATCH v2 03/16] cryptodev/bcmfs: fix mis-matched free

[Stephen Hemminger]

The device structure is allocated with rte_malloc() and
then incorrectly freed with free(). This will lead to
corrupt malloc pool.

Bugzilla ID: 1552
Fixes: c8e79da7c676 ("crypto/bcmfs: introduce BCMFS driver")
Cc: vikas.gupta@broadcom.com
Cc: stable@dpdk.org

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
---
 drivers/crypto/bcmfs/bcmfs_device.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/crypto/bcmfs/bcmfs_device.c b/drivers/crypto/bcmfs/bcmfs_device.c
index ada7ba342c..46522970d5 100644
--- a/drivers/crypto/bcmfs/bcmfs_device.c
+++ b/drivers/crypto/bcmfs/bcmfs_device.c
@@ -139,7 +139,7 @@ fsdev_allocate_one_dev(struct rte_vdev_device *vdev,
 	return fsdev;
 
 cleanup:
-	free(fsdev);
+	rte_free(fsdev);
 
 	return NULL;
 }
@@ -163,7 +163,7 @@ fsdev_release(struct bcmfs_device *fsdev)
 		return;
 
 	TAILQ_REMOVE(&fsdev_list, fsdev, next);
-	free(fsdev);
+	rte_free(fsdev);
 }
 
 static int
-- 
2.45.2

[PATCH v2 04/16] dma/ixd: fix incorrect free function in cleanup

[Stephen Hemminger]

The data structure is allocated with rte_malloc and incorrectly
freed in cleanup logic using free.

Bugzilla ID: 1549
Fixes: 9449330a8458 ("dma/idxd: create dmadev instances on PCI probe")
Cc: kevin.laatz@intel.com
Cc: stable@dpdk.org

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
---
 drivers/dma/idxd/idxd_pci.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/dma/idxd/idxd_pci.c b/drivers/dma/idxd/idxd_pci.c
index 81637d9420..f89e2b41ff 100644
--- a/drivers/dma/idxd/idxd_pci.c
+++ b/drivers/dma/idxd/idxd_pci.c
@@ -301,7 +301,7 @@ init_pci_device(struct rte_pci_device *dev, struct idxd_dmadev *idxd,
 	return nb_wqs;
 
 err:
-	free(pci);
+	rte_free(pci);
 	return err_code;
 }
 
-- 
2.45.2

[PATCH v2 05/16] event/cnxk: fix pointer mismatch in cleanup

[Stephen Hemminger]

The code to cleanup in case of error was passing incorrect
value to rte_free. The ports[] entry was allocated with
rte_malloc and that should be used instead of the offset
in that object.

Fixes: 97a05c1fe634 ("event/cnxk: add port config")
Cc: sthotton@marvell.com
Cc: stable@dpdk.org

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
---
 drivers/event/cnxk/cnxk_eventdev.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/event/cnxk/cnxk_eventdev.c b/drivers/event/cnxk/cnxk_eventdev.c
index 4b2d6bffa6..08c6ce0c07 100644
--- a/drivers/event/cnxk/cnxk_eventdev.c
+++ b/drivers/event/cnxk/cnxk_eventdev.c
@@ -121,8 +121,10 @@ cnxk_setup_event_ports(const struct rte_eventdev *event_dev,
 	return 0;
 hws_fini:
 	for (i = i - 1; i >= 0; i--) {
+		void *ws = event_dev->data->ports[i];
+
 		event_dev->data->ports[i] = NULL;
-		rte_free(cnxk_sso_hws_get_cookie(event_dev->data->ports[i]));
+		rte_free(ws);
 	}
 	return -ENOMEM;
 }
-- 
2.45.2

[PATCH v2 06/16] examples/vhost: fix free function mismatch

[Stephen Hemminger]

The pointer bdev is allocated with rte_zmalloc() and then
incorrectly freed with free() which will lead pool corruption.

Bugzilla ID: 1553
Fixes: c19beb3f38cd ("examples/vhost_blk: introduce vhost storage sample")
Cc: jin.yu@intel.com
Cc: stable@dpdk.org

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
---
 examples/vhost_blk/vhost_blk.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/examples/vhost_blk/vhost_blk.c b/examples/vhost_blk/vhost_blk.c
index 03f1ac9c3f..9c9e326949 100644
--- a/examples/vhost_blk/vhost_blk.c
+++ b/examples/vhost_blk/vhost_blk.c
@@ -776,7 +776,7 @@ vhost_blk_bdev_construct(const char *bdev_name,
 	bdev->data = rte_zmalloc(NULL, blk_cnt * blk_size, 0);
 	if (!bdev->data) {
 		fprintf(stderr, "No enough reserved huge memory for disk\n");
-		free(bdev);
+		rte_free(bdev);
 		return NULL;
 	}
 
-- 
2.45.2

[PATCH v2 07/16] net/cnxk: fix use-after-free

[Stephen Hemminger]

The driver would refer to the mempool object after it was freed.

Bugzilla ID: 1554
Fixes: 7ea187184a51 ("common/cnxk: support 1-N pool-aura per NIX LF")
Cc: rbhansali@marvell.com
Cc: stable@dpdk.org

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
---
 drivers/net/cnxk/cnxk_ethdev_sec.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/cnxk/cnxk_ethdev_sec.c b/drivers/net/cnxk/cnxk_ethdev_sec.c
index 6f5319e534..e428d2115d 100644
--- a/drivers/net/cnxk/cnxk_ethdev_sec.c
+++ b/drivers/net/cnxk/cnxk_ethdev_sec.c
@@ -136,8 +136,8 @@ cnxk_nix_inl_custom_meta_pool_cb(uintptr_t pmpool, uintptr_t *mpool, const char
 			return -EINVAL;
 		}
 
-		rte_mempool_free(hp);
 		plt_free(hp->pool_config);
+		rte_mempool_free(hp);
 
 		*aura_handle = 0;
 		*mpool = 0;
-- 
2.45.2

[PATCH v2 08/16] bpf: fix free mismatch if convert fails

[Stephen Hemminger]

If conversion of cBF to eBPF fails then an object allocated with
rte_malloc() would be passed to free().

[908/3201] Compiling C object lib/librte_bpf.a.p/bpf_bpf_convert.c.o
../lib/bpf/bpf_convert.c: In function ‘rte_bpf_convert’:
../lib/bpf/bpf_convert.c:559:17: warning: ‘free’ called on pointer returned from a mismatched allocation function [-Wmismatched-dealloc]
  559 |                 free(prm);
      |                 ^~~~~~~~~
../lib/bpf/bpf_convert.c:545:15: note: returned from ‘rte_zmalloc’
  545 |         prm = rte_zmalloc("bpf_filter",
      |               ^~~~~~~~~~~~~~~~~~~~~~~~~
  546 |                           sizeof(*prm) + ebpf_len * sizeof(*ebpf), 0);
      |                           ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Fixes: 2eccf6afbea9 ("bpf: add function to convert classic BPF to DPDK BPF")
Cc: stable@dpdk.org
Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
---
 lib/bpf/bpf_convert.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/bpf/bpf_convert.c b/lib/bpf/bpf_convert.c
index d7ff2b4325..e7e298c9cb 100644
--- a/lib/bpf/bpf_convert.c
+++ b/lib/bpf/bpf_convert.c
@@ -556,7 +556,7 @@ rte_bpf_convert(const struct bpf_program *prog)
 	ret = bpf_convert_filter(prog->bf_insns, prog->bf_len, ebpf, &ebpf_len);
 	if (ret < 0) {
 		RTE_BPF_LOG_LINE(ERR, "%s: cannot convert cBPF to eBPF", __func__);
-		free(prm);
+		rte_free(prm);
 		rte_errno = -ret;
 		return NULL;
 	}
-- 
2.45.2

[PATCH v2 09/16] net/e1000: fix use-after-free

[Stephen Hemminger]

The driver cleanup code was freeing the filter object
then dereferencing it.

Bugzilla ID: 1550
Fixes: 6a4d050e2855 ("net/igb: flush all the filter")
Cc: wei.zhao1@intel.com
Cc: stable@dpdk.org

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
---
 drivers/net/e1000/igb_ethdev.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/net/e1000/igb_ethdev.c b/drivers/net/e1000/igb_ethdev.c
index 095be27b08..973d0d2407 100644
--- a/drivers/net/e1000/igb_ethdev.c
+++ b/drivers/net/e1000/igb_ethdev.c
@@ -3907,11 +3907,11 @@ igb_delete_2tuple_filter(struct rte_eth_dev *dev,
 
 	filter_info->twotuple_mask &= ~(1 << filter->index);
 	TAILQ_REMOVE(&filter_info->twotuple_list, filter, entries);
-	rte_free(filter);
 
 	E1000_WRITE_REG(hw, E1000_TTQF(filter->index), E1000_TTQF_DISABLE_MASK);
 	E1000_WRITE_REG(hw, E1000_IMIR(filter->index), 0);
 	E1000_WRITE_REG(hw, E1000_IMIREXT(filter->index), 0);
+	rte_free(filter);
 	return 0;
 }
 
@@ -4348,7 +4348,6 @@ igb_delete_5tuple_filter_82576(struct rte_eth_dev *dev,
 
 	filter_info->fivetuple_mask &= ~(1 << filter->index);
 	TAILQ_REMOVE(&filter_info->fivetuple_list, filter, entries);
-	rte_free(filter);
 
 	E1000_WRITE_REG(hw, E1000_FTQF(filter->index),
 			E1000_FTQF_VF_BP | E1000_FTQF_MASK);
@@ -4357,6 +4356,7 @@ igb_delete_5tuple_filter_82576(struct rte_eth_dev *dev,
 	E1000_WRITE_REG(hw, E1000_SPQF(filter->index), 0);
 	E1000_WRITE_REG(hw, E1000_IMIR(filter->index), 0);
 	E1000_WRITE_REG(hw, E1000_IMIREXT(filter->index), 0);
+	rte_free(filter);
 	return 0;
 }
 
-- 
2.45.2

[PATCH v2 11/16] net/cpfl: fix free of nonheap object

[Stephen Hemminger]

With proper annotation, GCC discovers that this driver is
calling rte_free() on an object that was not allocated
(it is part of array in another object).

In function ‘cpfl_flow_js_mr_layout’,
    inlined from ‘cpfl_flow_js_mr_action’ at ../drivers/net/cpfl/cpfl_flow_parser.c:848:9,
    inlined from ‘cpfl_flow_js_mod_rule’ at ../drivers/net/cpfl/cpfl_flow_parser.c:908:9,
    inlined from ‘cpfl_parser_init’ at ../drivers/net/cpfl/cpfl_flow_parser.c:932:8,
    inlined from ‘cpfl_parser_create’ at ../drivers/net/cpfl/cpfl_flow_parser.c:959:8:
../drivers/net/cpfl/cpfl_flow_parser.c:740:9: warning: ‘rte_free’ called on pointer ‘*parser.modifications’ with nonzero offset [28, 15479062120396] [-Wfree-nonheap-object]
  740 |         rte_free(js_mod->layout);
      |         ^~~~~~~~~~~~~~~~~~~~~~~~

Fixes: 6cc97c9971d7 ("net/cpfl: build action mapping rules from JSON")
Cc: wenjing.qiao@intel.com
Cc: stable@dpdk.org

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
---
 drivers/net/cpfl/cpfl_flow_parser.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/net/cpfl/cpfl_flow_parser.c b/drivers/net/cpfl/cpfl_flow_parser.c
index 40569ddc6f..30abaad7c8 100644
--- a/drivers/net/cpfl/cpfl_flow_parser.c
+++ b/drivers/net/cpfl/cpfl_flow_parser.c
@@ -737,7 +737,6 @@ cpfl_flow_js_mr_layout(json_t *ob_layouts, struct cpfl_flow_js_mr_action_mod *js
 	return 0;
 
 err:
-	rte_free(js_mod->layout);
 	return -EINVAL;
 }
 
-- 
2.45.2

[PATCH v2 13/16] raw/ifpga/base: fix use after free

[Stephen Hemminger]

The TAILQ_FOREACH() macro would refer to info after it
had been freed. Fix by introducing TAILQ_FOREACH_SAFE here.

Fixes: 4a19f89104f8 ("raw/ifpga/base: support multiple cards")
Cc: tianfei.zhang@intel.com
Cc: stable@dpdk.org

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
---
 drivers/raw/ifpga/base/opae_intel_max10.c | 11 +++++++++--
 1 file changed, 9 insertions(+), 2 deletions(-)

diff --git a/drivers/raw/ifpga/base/opae_intel_max10.c b/drivers/raw/ifpga/base/opae_intel_max10.c
index dd97a5f9fd..d5a9ceb6e3 100644
--- a/drivers/raw/ifpga/base/opae_intel_max10.c
+++ b/drivers/raw/ifpga/base/opae_intel_max10.c
@@ -6,6 +6,13 @@
 #include <libfdt.h>
 #include "opae_osdep.h"
 
+#ifndef TAILQ_FOREACH_SAFE
+#define TAILQ_FOREACH_SAFE(var, head, field, tvar) \
+	for ((var) = TAILQ_FIRST((head)); \
+		(var) && ((tvar) = TAILQ_NEXT((var), field), 1); \
+	(var) = (tvar))
+#endif
+
 int max10_sys_read(struct intel_max10_device *dev,
 	unsigned int offset, unsigned int *val)
 {
@@ -746,9 +753,9 @@ static int fdt_get_named_reg(const void *fdt, int node, const char *name,
 
 static void max10_sensor_uinit(struct intel_max10_device *dev)
 {
-	struct opae_sensor_info *info;
+	struct opae_sensor_info *info, *next;
 
-	TAILQ_FOREACH(info, &dev->opae_sensor_list, node) {
+	TAILQ_FOREACH_SAFE(info, &dev->opae_sensor_list, node, next) {
 		TAILQ_REMOVE(&dev->opae_sensor_list, info, node);
 		opae_free(info);
 	}
-- 
2.45.2

[PATCH v2 15/16] drivers/ifpga: fix free function mismatch

[Stephen Hemminger]

The raw ifpga driver redefines malloc to be opae_malloc
and free to be opae_free; which is a bad idea.

This leads to case where interrupt efd array is allocated
with calloc() and then passed to rte_free. The workaround
is to allocate the array with rte_calloc() instead.

Fixes: d61138d4f0e2 ("drivers: remove direct access to interrupt handle")
Cc: hkalra@marvell.com
Cc: stable@dpdk.org

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
---
 drivers/raw/ifpga/ifpga_rawdev.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/raw/ifpga/ifpga_rawdev.c b/drivers/raw/ifpga/ifpga_rawdev.c
index a972b3b7a4..86558c7b9b 100644
--- a/drivers/raw/ifpga/ifpga_rawdev.c
+++ b/drivers/raw/ifpga/ifpga_rawdev.c
@@ -1499,7 +1499,7 @@ ifpga_register_msix_irq(struct ifpga_rawdev *dev, int port_id,
 
 		nb_intr = rte_intr_nb_intr_get(*intr_handle);
 
-		intr_efds = calloc(nb_intr, sizeof(int));
+		intr_efds = rte_calloc("ifpga_efds", nb_intr, sizeof(int), 0);
 		if (!intr_efds)
 			return -ENOMEM;
 
@@ -1508,7 +1508,7 @@ ifpga_register_msix_irq(struct ifpga_rawdev *dev, int port_id,
 
 		ret = opae_acc_set_irq(acc, vec_start, count, intr_efds);
 		if (ret) {
-			free(intr_efds);
+			rte_free(intr_efds);
 			return -EINVAL;
 		}
 	}
@@ -1517,13 +1517,13 @@ ifpga_register_msix_irq(struct ifpga_rawdev *dev, int port_id,
 	ret = rte_intr_callback_register(*intr_handle,
 			handler, (void *)arg);
 	if (ret) {
-		free(intr_efds);
+		rte_free(intr_efds);
 		return -EINVAL;
 	}
 
 	IFPGA_RAWDEV_PMD_INFO("success register %s interrupt\n", name);
 
-	free(intr_efds);
+	rte_free(intr_efds);
 	return 0;
 }
 
-- 
2.45.2

[PATCH v3 02/18] cryptodev/bcmfs: fix mis-matched free

[Stephen Hemminger]

The device structure is allocated with rte_malloc() and then
incorrectly freed with free(). This will lead to corrupt malloc pool.

Bugzilla ID: 1552
Fixes: c8e79da7c676 ("crypto/bcmfs: introduce BCMFS driver")
Cc: vikas.gupta@broadcom.com
Cc: stable@dpdk.org

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
---
 drivers/crypto/bcmfs/bcmfs_device.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/crypto/bcmfs/bcmfs_device.c b/drivers/crypto/bcmfs/bcmfs_device.c
index ada7ba342c..46522970d5 100644
--- a/drivers/crypto/bcmfs/bcmfs_device.c
+++ b/drivers/crypto/bcmfs/bcmfs_device.c
@@ -139,7 +139,7 @@ fsdev_allocate_one_dev(struct rte_vdev_device *vdev,
 	return fsdev;
 
 cleanup:
-	free(fsdev);
+	rte_free(fsdev);
 
 	return NULL;
 }
@@ -163,7 +163,7 @@ fsdev_release(struct bcmfs_device *fsdev)
 		return;
 
 	TAILQ_REMOVE(&fsdev_list, fsdev, next);
-	free(fsdev);
+	rte_free(fsdev);
 }
 
 static int
-- 
2.45.2

[PATCH v3 03/18] dma/ixd: fix incorrect free function in cleanup

[Stephen Hemminger]

The data structure is allocated with rte_malloc and incorrectly
freed in cleanup logic using free.

Bugzilla ID: 1549
Fixes: 9449330a8458 ("dma/idxd: create dmadev instances on PCI probe")
Cc: kevin.laatz@intel.com
Cc: stable@dpdk.org

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
---
 drivers/dma/idxd/idxd_pci.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/dma/idxd/idxd_pci.c b/drivers/dma/idxd/idxd_pci.c
index 81637d9420..f89e2b41ff 100644
--- a/drivers/dma/idxd/idxd_pci.c
+++ b/drivers/dma/idxd/idxd_pci.c
@@ -301,7 +301,7 @@ init_pci_device(struct rte_pci_device *dev, struct idxd_dmadev *idxd,
 	return nb_wqs;
 
 err:
-	free(pci);
+	rte_free(pci);
 	return err_code;
 }
 
-- 
2.45.2

[PATCH v3 04/18] event/cnxk: fix pointer mismatch in cleanup

[Stephen Hemminger]

The code to cleanup in case of error was passing incorrect
value to rte_free. The ports[] entry was allocated with
rte_malloc and that should be used instead of the offset
in that object.

Fixes: 97a05c1fe634 ("event/cnxk: add port config")
Cc: sthotton@marvell.com
Cc: stable@dpdk.org

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
---
 drivers/event/cnxk/cnxk_eventdev.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/event/cnxk/cnxk_eventdev.c b/drivers/event/cnxk/cnxk_eventdev.c
index 4b2d6bffa6..08c6ce0c07 100644
--- a/drivers/event/cnxk/cnxk_eventdev.c
+++ b/drivers/event/cnxk/cnxk_eventdev.c
@@ -121,8 +121,10 @@ cnxk_setup_event_ports(const struct rte_eventdev *event_dev,
 	return 0;
 hws_fini:
 	for (i = i - 1; i >= 0; i--) {
+		void *ws = event_dev->data->ports[i];
+
 		event_dev->data->ports[i] = NULL;
-		rte_free(cnxk_sso_hws_get_cookie(event_dev->data->ports[i]));
+		rte_free(ws);
 	}
 	return -ENOMEM;
 }
-- 
2.45.2

[PATCH v3 05/18] examples/vhost: fix free function mismatch

[Stephen Hemminger]

The pointer bdev is allocated with rte_zmalloc() and then
incorrectly freed with free() which will lead pool corruption.

Bugzilla ID: 1553
Fixes: c19beb3f38cd ("examples/vhost_blk: introduce vhost storage sample")
Cc: jin.yu@intel.com
Cc: stable@dpdk.org

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
---
 examples/vhost_blk/vhost_blk.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/examples/vhost_blk/vhost_blk.c b/examples/vhost_blk/vhost_blk.c
index 03f1ac9c3f..9c9e326949 100644
--- a/examples/vhost_blk/vhost_blk.c
+++ b/examples/vhost_blk/vhost_blk.c
@@ -776,7 +776,7 @@ vhost_blk_bdev_construct(const char *bdev_name,
 	bdev->data = rte_zmalloc(NULL, blk_cnt * blk_size, 0);
 	if (!bdev->data) {
 		fprintf(stderr, "No enough reserved huge memory for disk\n");
-		free(bdev);
+		rte_free(bdev);
 		return NULL;
 	}
 
-- 
2.45.2

Re: [PATCH v3 05/18] examples/vhost: fix free function mismatch

[fengchengwen]

Acked-by: Chengwen Feng <fengchengwen@huawei.com>

On 2024/9/29 23:34, Stephen Hemminger wrote:
> The pointer bdev is allocated with rte_zmalloc() and then
> incorrectly freed with free() which will lead pool corruption.
> 
> Bugzilla ID: 1553
> Fixes: c19beb3f38cd ("examples/vhost_blk: introduce vhost storage sample")
> Cc: jin.yu@intel.com
> Cc: stable@dpdk.org
> 
> Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>

[PATCH v3 06/18] net/cnxk: fix use-after-free

[Stephen Hemminger]

The driver would refer to the mempool object after it was freed.

Bugzilla ID: 1554
Fixes: 7ea187184a51 ("common/cnxk: support 1-N pool-aura per NIX LF")
Cc: rbhansali@marvell.com
Cc: stable@dpdk.org

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
---
 drivers/net/cnxk/cnxk_ethdev_sec.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/cnxk/cnxk_ethdev_sec.c b/drivers/net/cnxk/cnxk_ethdev_sec.c
index 6f5319e534..e428d2115d 100644
--- a/drivers/net/cnxk/cnxk_ethdev_sec.c
+++ b/drivers/net/cnxk/cnxk_ethdev_sec.c
@@ -136,8 +136,8 @@ cnxk_nix_inl_custom_meta_pool_cb(uintptr_t pmpool, uintptr_t *mpool, const char
 			return -EINVAL;
 		}
 
-		rte_mempool_free(hp);
 		plt_free(hp->pool_config);
+		rte_mempool_free(hp);
 
 		*aura_handle = 0;
 		*mpool = 0;
-- 
2.45.2

[PATCH v3 07/18] bpf: fix free mismatch if convert fails

[Stephen Hemminger]

If conversion of cBF to eBPF fails then an object allocated with
rte_malloc() would be passed to free().

[908/3201] Compiling C object lib/librte_bpf.a.p/bpf_bpf_convert.c.o
../lib/bpf/bpf_convert.c: In function ‘rte_bpf_convert’:
../lib/bpf/bpf_convert.c:559:17: warning: ‘free’ called on pointer returned from a mismatched allocation function [-Wmismatched-dealloc]
  559 |                 free(prm);
      |                 ^~~~~~~~~
../lib/bpf/bpf_convert.c:545:15: note: returned from ‘rte_zmalloc’
  545 |         prm = rte_zmalloc("bpf_filter",
      |               ^~~~~~~~~~~~~~~~~~~~~~~~~
  546 |                           sizeof(*prm) + ebpf_len * sizeof(*ebpf), 0);
      |                           ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Fixes: 2eccf6afbea9 ("bpf: add function to convert classic BPF to DPDK BPF")
Cc: stable@dpdk.org
Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
---
 lib/bpf/bpf_convert.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/bpf/bpf_convert.c b/lib/bpf/bpf_convert.c
index d7ff2b4325..e7e298c9cb 100644
--- a/lib/bpf/bpf_convert.c
+++ b/lib/bpf/bpf_convert.c
@@ -556,7 +556,7 @@ rte_bpf_convert(const struct bpf_program *prog)
 	ret = bpf_convert_filter(prog->bf_insns, prog->bf_len, ebpf, &ebpf_len);
 	if (ret < 0) {
 		RTE_BPF_LOG_LINE(ERR, "%s: cannot convert cBPF to eBPF", __func__);
-		free(prm);
+		rte_free(prm);
 		rte_errno = -ret;
 		return NULL;
 	}
-- 
2.45.2

[PATCH v3 08/18] net/e1000: fix use-after-free

[Stephen Hemminger]

The driver cleanup code was freeing the filter object
then dereferencing it.

Bugzilla ID: 1550
Fixes: 6a4d050e2855 ("net/igb: flush all the filter")
Cc: wei.zhao1@intel.com
Cc: stable@dpdk.org

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
---
 drivers/net/e1000/igb_ethdev.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/net/e1000/igb_ethdev.c b/drivers/net/e1000/igb_ethdev.c
index 095be27b08..973d0d2407 100644
--- a/drivers/net/e1000/igb_ethdev.c
+++ b/drivers/net/e1000/igb_ethdev.c
@@ -3907,11 +3907,11 @@ igb_delete_2tuple_filter(struct rte_eth_dev *dev,
 
 	filter_info->twotuple_mask &= ~(1 << filter->index);
 	TAILQ_REMOVE(&filter_info->twotuple_list, filter, entries);
-	rte_free(filter);
 
 	E1000_WRITE_REG(hw, E1000_TTQF(filter->index), E1000_TTQF_DISABLE_MASK);
 	E1000_WRITE_REG(hw, E1000_IMIR(filter->index), 0);
 	E1000_WRITE_REG(hw, E1000_IMIREXT(filter->index), 0);
+	rte_free(filter);
 	return 0;
 }
 
@@ -4348,7 +4348,6 @@ igb_delete_5tuple_filter_82576(struct rte_eth_dev *dev,
 
 	filter_info->fivetuple_mask &= ~(1 << filter->index);
 	TAILQ_REMOVE(&filter_info->fivetuple_list, filter, entries);
-	rte_free(filter);
 
 	E1000_WRITE_REG(hw, E1000_FTQF(filter->index),
 			E1000_FTQF_VF_BP | E1000_FTQF_MASK);
@@ -4357,6 +4356,7 @@ igb_delete_5tuple_filter_82576(struct rte_eth_dev *dev,
 	E1000_WRITE_REG(hw, E1000_SPQF(filter->index), 0);
 	E1000_WRITE_REG(hw, E1000_IMIR(filter->index), 0);
 	E1000_WRITE_REG(hw, E1000_IMIREXT(filter->index), 0);
+	rte_free(filter);
 	return 0;
 }
 
-- 
2.45.2

[PATCH v3 10/18] net/cpfl: fix free of nonheap object

[Stephen Hemminger]

With proper annotation, GCC discovers that this driver is
calling rte_free() on an object that was not allocated
(it is part of array in another object).

In function ‘cpfl_flow_js_mr_layout’,
    inlined from ‘cpfl_flow_js_mr_action’ at ../drivers/net/cpfl/cpfl_flow_parser.c:848:9,
    inlined from ‘cpfl_flow_js_mod_rule’ at ../drivers/net/cpfl/cpfl_flow_parser.c:908:9,
    inlined from ‘cpfl_parser_init’ at ../drivers/net/cpfl/cpfl_flow_parser.c:932:8,
    inlined from ‘cpfl_parser_create’ at ../drivers/net/cpfl/cpfl_flow_parser.c:959:8:
../drivers/net/cpfl/cpfl_flow_parser.c:740:9: warning: ‘rte_free’ called on pointer ‘*parser.modifications’ with nonzero offset [28, 15479062120396] [-Wfree-nonheap-object]
  740 |         rte_free(js_mod->layout);
      |         ^~~~~~~~~~~~~~~~~~~~~~~~

Fixes: 6cc97c9971d7 ("net/cpfl: build action mapping rules from JSON")
Cc: wenjing.qiao@intel.com
Cc: stable@dpdk.org

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
---
 drivers/net/cpfl/cpfl_flow_parser.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/net/cpfl/cpfl_flow_parser.c b/drivers/net/cpfl/cpfl_flow_parser.c
index 40569ddc6f..30abaad7c8 100644
--- a/drivers/net/cpfl/cpfl_flow_parser.c
+++ b/drivers/net/cpfl/cpfl_flow_parser.c
@@ -737,7 +737,6 @@ cpfl_flow_js_mr_layout(json_t *ob_layouts, struct cpfl_flow_js_mr_action_mod *js
 	return 0;
 
 err:
-	rte_free(js_mod->layout);
 	return -EINVAL;
 }
 
-- 
2.45.2

[PATCH v3 12/18] raw/ifpga/base: fix use after free

[Stephen Hemminger]

The TAILQ_FOREACH() macro would refer to info after it
had been freed. Fix by introducing TAILQ_FOREACH_SAFE here.

Fixes: 4a19f89104f8 ("raw/ifpga/base: support multiple cards")
Cc: tianfei.zhang@intel.com
Cc: stable@dpdk.org

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
---
 drivers/raw/ifpga/base/opae_intel_max10.c | 11 +++++++++--
 1 file changed, 9 insertions(+), 2 deletions(-)

diff --git a/drivers/raw/ifpga/base/opae_intel_max10.c b/drivers/raw/ifpga/base/opae_intel_max10.c
index dd97a5f9fd..d5a9ceb6e3 100644
--- a/drivers/raw/ifpga/base/opae_intel_max10.c
+++ b/drivers/raw/ifpga/base/opae_intel_max10.c
@@ -6,6 +6,13 @@
 #include <libfdt.h>
 #include "opae_osdep.h"
 
+#ifndef TAILQ_FOREACH_SAFE
+#define TAILQ_FOREACH_SAFE(var, head, field, tvar) \
+	for ((var) = TAILQ_FIRST((head)); \
+		(var) && ((tvar) = TAILQ_NEXT((var), field), 1); \
+	(var) = (tvar))
+#endif
+
 int max10_sys_read(struct intel_max10_device *dev,
 	unsigned int offset, unsigned int *val)
 {
@@ -746,9 +753,9 @@ static int fdt_get_named_reg(const void *fdt, int node, const char *name,
 
 static void max10_sensor_uinit(struct intel_max10_device *dev)
 {
-	struct opae_sensor_info *info;
+	struct opae_sensor_info *info, *next;
 
-	TAILQ_FOREACH(info, &dev->opae_sensor_list, node) {
+	TAILQ_FOREACH_SAFE(info, &dev->opae_sensor_list, node, next) {
 		TAILQ_REMOVE(&dev->opae_sensor_list, info, node);
 		opae_free(info);
 	}
-- 
2.45.2

[PATCH v3 14/18] drivers/ifpga: fix free function mismatch

[Stephen Hemminger]

The raw ifpga driver redefines malloc to be opae_malloc
and free to be opae_free; which is a bad idea.

This leads to case where interrupt efd array is allocated
with calloc() and then passed to rte_free. The workaround
is to allocate the array with rte_calloc() instead.

Fixes: d61138d4f0e2 ("drivers: remove direct access to interrupt handle")
Cc: hkalra@marvell.com
Cc: stable@dpdk.org

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
---
 drivers/raw/ifpga/ifpga_rawdev.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/raw/ifpga/ifpga_rawdev.c b/drivers/raw/ifpga/ifpga_rawdev.c
index a972b3b7a4..86558c7b9b 100644
--- a/drivers/raw/ifpga/ifpga_rawdev.c
+++ b/drivers/raw/ifpga/ifpga_rawdev.c
@@ -1499,7 +1499,7 @@ ifpga_register_msix_irq(struct ifpga_rawdev *dev, int port_id,
 
 		nb_intr = rte_intr_nb_intr_get(*intr_handle);
 
-		intr_efds = calloc(nb_intr, sizeof(int));
+		intr_efds = rte_calloc("ifpga_efds", nb_intr, sizeof(int), 0);
 		if (!intr_efds)
 			return -ENOMEM;
 
@@ -1508,7 +1508,7 @@ ifpga_register_msix_irq(struct ifpga_rawdev *dev, int port_id,
 
 		ret = opae_acc_set_irq(acc, vec_start, count, intr_efds);
 		if (ret) {
-			free(intr_efds);
+			rte_free(intr_efds);
 			return -EINVAL;
 		}
 	}
@@ -1517,13 +1517,13 @@ ifpga_register_msix_irq(struct ifpga_rawdev *dev, int port_id,
 	ret = rte_intr_callback_register(*intr_handle,
 			handler, (void *)arg);
 	if (ret) {
-		free(intr_efds);
+		rte_free(intr_efds);
 		return -EINVAL;
 	}
 
 	IFPGA_RAWDEV_PMD_INFO("success register %s interrupt\n", name);
 
-	free(intr_efds);
+	rte_free(intr_efds);
 	return 0;
 }
 
-- 
2.45.2

[PATCH v3 15/18] baseband/la12xx: prevent use after free

[Stephen Hemminger]

It is possible that the info pointer (hp) could get freed twice.
Fix by nulling after free.

In function 'setup_la12xx_dev',
inlined from 'la12xx_bbdev_create' at ../drivers/baseband/la12xx/bbdev_la12xx.c:1029:8,
inlined from 'la12xx_bbdev_probe' at ../drivers/baseband/la12xx/bbdev_la12xx.c:1075:9:
../drivers/baseband/la12xx/bbdev_la12xx.c:901:9: error: pointer 'hp_info' may be used after 'rte_free' [-Werror=use-after-free]
901 |         rte_free(hp);
|         ^~~~~~~~~~~~
../drivers/baseband/la12xx/bbdev_la12xx.c:791:17: note: call to 'rte_free' here
791 |                 rte_free(hp);
|                 ^~~~~~~~~~~~

Fixes: 24d0ba22546e ("baseband/la12xx: add queue and modem config")
Cc: hemant.agrawal@nxp.com
Cc: stable@dpdk.org
Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
---
 drivers/baseband/la12xx/bbdev_la12xx.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/baseband/la12xx/bbdev_la12xx.c b/drivers/baseband/la12xx/bbdev_la12xx.c
index 1a56e73abd..cad6f9490e 100644
--- a/drivers/baseband/la12xx/bbdev_la12xx.c
+++ b/drivers/baseband/la12xx/bbdev_la12xx.c
@@ -789,6 +789,7 @@ setup_la12xx_dev(struct rte_bbdev *dev)
 		ipc_priv->hugepg_start.size = hp->len;
 
 		rte_free(hp);
+		hp = NULL;
 	}
 
 	dev_ipc = open_ipc_dev(priv->modem_id);
-- 
2.45.2

Re: [PATCH v3 15/18] baseband/la12xx: prevent use after free

[Hemant Agrawal]

On 29-09-2024 21:04, Stephen Hemminger wrote:
> It is possible that the info pointer (hp) could get freed twice.
> Fix by nulling after free.
>
> In function 'setup_la12xx_dev',
> inlined from 'la12xx_bbdev_create' at ../drivers/baseband/la12xx/bbdev_la12xx.c:1029:8,
> inlined from 'la12xx_bbdev_probe' at ../drivers/baseband/la12xx/bbdev_la12xx.c:1075:9:
> ../drivers/baseband/la12xx/bbdev_la12xx.c:901:9: error: pointer 'hp_info' may be used after 'rte_free' [-Werror=use-after-free]
> 901 |         rte_free(hp);
> |         ^~~~~~~~~~~~
> ../drivers/baseband/la12xx/bbdev_la12xx.c:791:17: note: call to 'rte_free' here
> 791 |                 rte_free(hp);
> |                 ^~~~~~~~~~~~
>
> Fixes: 24d0ba22546e ("baseband/la12xx: add queue and modem config")
> Cc: hemant.agrawal@nxp.com
> Cc: stable@dpdk.org
> Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
> ---
>   drivers/baseband/la12xx/bbdev_la12xx.c | 1 +
>   1 file changed, 1 insertion(+)
>
> diff --git a/drivers/baseband/la12xx/bbdev_la12xx.c b/drivers/baseband/la12xx/bbdev_la12xx.c
> index 1a56e73abd..cad6f9490e 100644
> --- a/drivers/baseband/la12xx/bbdev_la12xx.c
> +++ b/drivers/baseband/la12xx/bbdev_la12xx.c
> @@ -789,6 +789,7 @@ setup_la12xx_dev(struct rte_bbdev *dev)
>   		ipc_priv->hugepg_start.size = hp->len;
>   
>   		rte_free(hp);
> +		hp = NULL;
>   	}
>   
>   	dev_ipc = open_ipc_dev(priv->modem_id);
Reviewed-by:  Hemant Agrawal <hemant.agrawal@nxp.com>

[PATCH v4 02/17] cryptodev/bcmfs: fix mis-matched free

[Stephen Hemminger]

The device structure is allocated with rte_malloc() and
then incorrectly freed with free(). This will lead to
corrupt malloc pool.

Bugzilla ID: 1552
Fixes: c8e79da7c676 ("crypto/bcmfs: introduce BCMFS driver")
Cc: stable@dpdk.org

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
---
 drivers/crypto/bcmfs/bcmfs_device.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/crypto/bcmfs/bcmfs_device.c b/drivers/crypto/bcmfs/bcmfs_device.c
index ada7ba342c..46522970d5 100644
--- a/drivers/crypto/bcmfs/bcmfs_device.c
+++ b/drivers/crypto/bcmfs/bcmfs_device.c
@@ -139,7 +139,7 @@ fsdev_allocate_one_dev(struct rte_vdev_device *vdev,
 	return fsdev;
 
 cleanup:
-	free(fsdev);
+	rte_free(fsdev);
 
 	return NULL;
 }
@@ -163,7 +163,7 @@ fsdev_release(struct bcmfs_device *fsdev)
 		return;
 
 	TAILQ_REMOVE(&fsdev_list, fsdev, next);
-	free(fsdev);
+	rte_free(fsdev);
 }
 
 static int
-- 
2.45.2

Re: [PATCH v4 02/17] cryptodev/bcmfs: fix mis-matched free

[Ajit Khaparde]

[-- Attachment #1: Type: text/plain, Size: 1242 bytes --]

On Mon, Sep 30, 2024 at 11:46 AM Stephen Hemminger
<stephen@networkplumber.org> wrote:
>
> The device structure is allocated with rte_malloc() and
> then incorrectly freed with free(). This will lead to
> corrupt malloc pool.
>
> Bugzilla ID: 1552
> Fixes: c8e79da7c676 ("crypto/bcmfs: introduce BCMFS driver")
> Cc: stable@dpdk.org
>
> Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
Acked-by: Ajit Khaparde <ajit.khaparde@broadcom.com>

> ---
>  drivers/crypto/bcmfs/bcmfs_device.c | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/crypto/bcmfs/bcmfs_device.c b/drivers/crypto/bcmfs/bcmfs_device.c
> index ada7ba342c..46522970d5 100644
> --- a/drivers/crypto/bcmfs/bcmfs_device.c
> +++ b/drivers/crypto/bcmfs/bcmfs_device.c
> @@ -139,7 +139,7 @@ fsdev_allocate_one_dev(struct rte_vdev_device *vdev,
>         return fsdev;
>
>  cleanup:
> -       free(fsdev);
> +       rte_free(fsdev);
>
>         return NULL;
>  }
> @@ -163,7 +163,7 @@ fsdev_release(struct bcmfs_device *fsdev)
>                 return;
>
>         TAILQ_REMOVE(&fsdev_list, fsdev, next);
> -       free(fsdev);
> +       rte_free(fsdev);
>  }
>
>  static int
> --
> 2.45.2
>

[-- Attachment #2: S/MIME Cryptographic Signature --]
[-- Type: application/pkcs7-signature, Size: 4218 bytes --]

[PATCH v4 03/17] dma/ixd: fix incorrect free function in cleanup

[Stephen Hemminger]

The data structure is allocated with rte_malloc and incorrectly
freed in cleanup logic using free.

Bugzilla ID: 1549
Fixes: 9449330a8458 ("dma/idxd: create dmadev instances on PCI probe")
Cc: kevin.laatz@intel.com
Cc: stable@dpdk.org

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
---
 drivers/dma/idxd/idxd_pci.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/dma/idxd/idxd_pci.c b/drivers/dma/idxd/idxd_pci.c
index 81637d9420..f89e2b41ff 100644
--- a/drivers/dma/idxd/idxd_pci.c
+++ b/drivers/dma/idxd/idxd_pci.c
@@ -301,7 +301,7 @@ init_pci_device(struct rte_pci_device *dev, struct idxd_dmadev *idxd,
 	return nb_wqs;
 
 err:
-	free(pci);
+	rte_free(pci);
 	return err_code;
 }
 
-- 
2.45.2

Re: [PATCH v4 03/17] dma/ixd: fix incorrect free function in cleanup

[Bruce Richardson]

On Mon, Sep 30, 2024 at 11:43:57AM -0700, Stephen Hemminger wrote:
> The data structure is allocated with rte_malloc and incorrectly
> freed in cleanup logic using free.
> 
> Bugzilla ID: 1549
> Fixes: 9449330a8458 ("dma/idxd: create dmadev instances on PCI probe")
> Cc: kevin.laatz@intel.com
> Cc: stable@dpdk.org
> 
> Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
Reviewed-by: Bruce Richardson <bruce.richardson@intel.com>

> ---
>  drivers/dma/idxd/idxd_pci.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/dma/idxd/idxd_pci.c b/drivers/dma/idxd/idxd_pci.c
> index 81637d9420..f89e2b41ff 100644
> --- a/drivers/dma/idxd/idxd_pci.c
> +++ b/drivers/dma/idxd/idxd_pci.c
> @@ -301,7 +301,7 @@ init_pci_device(struct rte_pci_device *dev, struct idxd_dmadev *idxd,
>  	return nb_wqs;
>  
>  err:
> -	free(pci);
> +	rte_free(pci);
>  	return err_code;
>  }
>  
> -- 
> 2.45.2
> 

[PATCH v4 04/17] event/cnxk: fix pointer mismatch in cleanup

[Stephen Hemminger]

The code to cleanup in case of error was passing incorrect
value to rte_free. The ports[] entry was allocated with
rte_malloc and that should be used instead of the offset
in that object.

Fixes: 97a05c1fe634 ("event/cnxk: add port config")
Cc: sthotton@marvell.com
Cc: stable@dpdk.org

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
---
 drivers/event/cnxk/cnxk_eventdev.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/event/cnxk/cnxk_eventdev.c b/drivers/event/cnxk/cnxk_eventdev.c
index 4b2d6bffa6..08c6ce0c07 100644
--- a/drivers/event/cnxk/cnxk_eventdev.c
+++ b/drivers/event/cnxk/cnxk_eventdev.c
@@ -121,8 +121,10 @@ cnxk_setup_event_ports(const struct rte_eventdev *event_dev,
 	return 0;
 hws_fini:
 	for (i = i - 1; i >= 0; i--) {
+		void *ws = event_dev->data->ports[i];
+
 		event_dev->data->ports[i] = NULL;
-		rte_free(cnxk_sso_hws_get_cookie(event_dev->data->ports[i]));
+		rte_free(ws);
 	}
 	return -ENOMEM;
 }
-- 
2.45.2

[PATCH v4 05/17] examples/vhost: fix free function mismatch

[Stephen Hemminger]

The pointer bdev is allocated with rte_zmalloc() and then
incorrectly freed with free() which will lead pool corruption.

Bugzilla ID: 1553
Fixes: c19beb3f38cd ("examples/vhost_blk: introduce vhost storage sample")
Cc: stable@dpdk.org

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
Acked-by: Chengwen Feng <fengchengwen@huawei.com>
---
 examples/vhost_blk/vhost_blk.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/examples/vhost_blk/vhost_blk.c b/examples/vhost_blk/vhost_blk.c
index 03f1ac9c3f..9c9e326949 100644
--- a/examples/vhost_blk/vhost_blk.c
+++ b/examples/vhost_blk/vhost_blk.c
@@ -776,7 +776,7 @@ vhost_blk_bdev_construct(const char *bdev_name,
 	bdev->data = rte_zmalloc(NULL, blk_cnt * blk_size, 0);
 	if (!bdev->data) {
 		fprintf(stderr, "No enough reserved huge memory for disk\n");
-		free(bdev);
+		rte_free(bdev);
 		return NULL;
 	}
 
-- 
2.45.2

[PATCH v4 06/17] net/cnxk: fix use-after-free

[Stephen Hemminger]

The driver would refer to the mempool object after it was freed.

Bugzilla ID: 1554
Fixes: 7ea187184a51 ("common/cnxk: support 1-N pool-aura per NIX LF")
Cc: rbhansali@marvell.com
Cc: stable@dpdk.org

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
---
 drivers/net/cnxk/cnxk_ethdev_sec.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/cnxk/cnxk_ethdev_sec.c b/drivers/net/cnxk/cnxk_ethdev_sec.c
index 6f5319e534..e428d2115d 100644
--- a/drivers/net/cnxk/cnxk_ethdev_sec.c
+++ b/drivers/net/cnxk/cnxk_ethdev_sec.c
@@ -136,8 +136,8 @@ cnxk_nix_inl_custom_meta_pool_cb(uintptr_t pmpool, uintptr_t *mpool, const char
 			return -EINVAL;
 		}
 
-		rte_mempool_free(hp);
 		plt_free(hp->pool_config);
+		rte_mempool_free(hp);
 
 		*aura_handle = 0;
 		*mpool = 0;
-- 
2.45.2

[PATCH v4 07/17] bpf: fix free mismatch if convert fails

[Stephen Hemminger]

If conversion of cBF to eBPF fails then an object allocated with
rte_malloc() would be passed to free().

[908/3201] Compiling C object lib/librte_bpf.a.p/bpf_bpf_convert.c.o
../lib/bpf/bpf_convert.c: In function ‘rte_bpf_convert’:
../lib/bpf/bpf_convert.c:559:17: warning: ‘free’ called on pointer returned from a mismatched allocation function [-Wmismatched-dealloc]
  559 |                 free(prm);
      |                 ^~~~~~~~~
../lib/bpf/bpf_convert.c:545:15: note: returned from ‘rte_zmalloc’
  545 |         prm = rte_zmalloc("bpf_filter",
      |               ^~~~~~~~~~~~~~~~~~~~~~~~~
  546 |                           sizeof(*prm) + ebpf_len * sizeof(*ebpf), 0);
      |                           ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Fixes: 2eccf6afbea9 ("bpf: add function to convert classic BPF to DPDK BPF")
Cc: stable@dpdk.org
Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
---
 lib/bpf/bpf_convert.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/bpf/bpf_convert.c b/lib/bpf/bpf_convert.c
index d7ff2b4325..e7e298c9cb 100644
--- a/lib/bpf/bpf_convert.c
+++ b/lib/bpf/bpf_convert.c
@@ -556,7 +556,7 @@ rte_bpf_convert(const struct bpf_program *prog)
 	ret = bpf_convert_filter(prog->bf_insns, prog->bf_len, ebpf, &ebpf_len);
 	if (ret < 0) {
 		RTE_BPF_LOG_LINE(ERR, "%s: cannot convert cBPF to eBPF", __func__);
-		free(prm);
+		rte_free(prm);
 		rte_errno = -ret;
 		return NULL;
 	}
-- 
2.45.2

[PATCH v4 08/17] net/e1000: fix use-after-free

[Stephen Hemminger]

The driver cleanup code was freeing the filter object
then dereferencing it.

Bugzilla ID: 1550
Fixes: 6a4d050e2855 ("net/igb: flush all the filter")
Cc: stable@dpdk.org

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
---
 drivers/net/e1000/igb_ethdev.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/net/e1000/igb_ethdev.c b/drivers/net/e1000/igb_ethdev.c
index 095be27b08..973d0d2407 100644
--- a/drivers/net/e1000/igb_ethdev.c
+++ b/drivers/net/e1000/igb_ethdev.c
@@ -3907,11 +3907,11 @@ igb_delete_2tuple_filter(struct rte_eth_dev *dev,
 
 	filter_info->twotuple_mask &= ~(1 << filter->index);
 	TAILQ_REMOVE(&filter_info->twotuple_list, filter, entries);
-	rte_free(filter);
 
 	E1000_WRITE_REG(hw, E1000_TTQF(filter->index), E1000_TTQF_DISABLE_MASK);
 	E1000_WRITE_REG(hw, E1000_IMIR(filter->index), 0);
 	E1000_WRITE_REG(hw, E1000_IMIREXT(filter->index), 0);
+	rte_free(filter);
 	return 0;
 }
 
@@ -4348,7 +4348,6 @@ igb_delete_5tuple_filter_82576(struct rte_eth_dev *dev,
 
 	filter_info->fivetuple_mask &= ~(1 << filter->index);
 	TAILQ_REMOVE(&filter_info->fivetuple_list, filter, entries);
-	rte_free(filter);
 
 	E1000_WRITE_REG(hw, E1000_FTQF(filter->index),
 			E1000_FTQF_VF_BP | E1000_FTQF_MASK);
@@ -4357,6 +4356,7 @@ igb_delete_5tuple_filter_82576(struct rte_eth_dev *dev,
 	E1000_WRITE_REG(hw, E1000_SPQF(filter->index), 0);
 	E1000_WRITE_REG(hw, E1000_IMIR(filter->index), 0);
 	E1000_WRITE_REG(hw, E1000_IMIREXT(filter->index), 0);
+	rte_free(filter);
 	return 0;
 }
 
-- 
2.45.2

[PATCH v4 10/17] net/cpfl: fix free of nonheap object

[Stephen Hemminger]

With proper annotation, GCC discovers that this driver is
calling rte_free() on an object that was not allocated
(it is part of array in another object).

In function ‘cpfl_flow_js_mr_layout’,
    inlined from ‘cpfl_flow_js_mr_action’ at ../drivers/net/cpfl/cpfl_flow_parser.c:848:9,
    inlined from ‘cpfl_flow_js_mod_rule’ at ../drivers/net/cpfl/cpfl_flow_parser.c:908:9,
    inlined from ‘cpfl_parser_init’ at ../drivers/net/cpfl/cpfl_flow_parser.c:932:8,
    inlined from ‘cpfl_parser_create’ at ../drivers/net/cpfl/cpfl_flow_parser.c:959:8:
../drivers/net/cpfl/cpfl_flow_parser.c:740:9: warning: ‘rte_free’ called on pointer ‘*parser.modifications’ with nonzero offset [28, 15479062120396] [-Wfree-nonheap-object]
  740 |         rte_free(js_mod->layout);
      |         ^~~~~~~~~~~~~~~~~~~~~~~~

Fixes: 6cc97c9971d7 ("net/cpfl: build action mapping rules from JSON")
Cc: wenjing.qiao@intel.com
Cc: stable@dpdk.org

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
---
 drivers/net/cpfl/cpfl_flow_parser.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/net/cpfl/cpfl_flow_parser.c b/drivers/net/cpfl/cpfl_flow_parser.c
index 40569ddc6f..30abaad7c8 100644
--- a/drivers/net/cpfl/cpfl_flow_parser.c
+++ b/drivers/net/cpfl/cpfl_flow_parser.c
@@ -737,7 +737,6 @@ cpfl_flow_js_mr_layout(json_t *ob_layouts, struct cpfl_flow_js_mr_action_mod *js
 	return 0;
 
 err:
-	rte_free(js_mod->layout);
 	return -EINVAL;
 }
 
-- 
2.45.2

[PATCH v4 12/17] raw/ifpga/base: fix use after free

[Stephen Hemminger]

The TAILQ_FOREACH() macro would refer to info after it
had been freed. Fix by introducing TAILQ_FOREACH_SAFE here.

Fixes: 4a19f89104f8 ("raw/ifpga/base: support multiple cards")
Cc: stable@dpdk.org

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
---
 drivers/raw/ifpga/base/opae_intel_max10.c | 11 +++++++++--
 1 file changed, 9 insertions(+), 2 deletions(-)

diff --git a/drivers/raw/ifpga/base/opae_intel_max10.c b/drivers/raw/ifpga/base/opae_intel_max10.c
index dd97a5f9fd..d5a9ceb6e3 100644
--- a/drivers/raw/ifpga/base/opae_intel_max10.c
+++ b/drivers/raw/ifpga/base/opae_intel_max10.c
@@ -6,6 +6,13 @@
 #include <libfdt.h>
 #include "opae_osdep.h"
 
+#ifndef TAILQ_FOREACH_SAFE
+#define TAILQ_FOREACH_SAFE(var, head, field, tvar) \
+	for ((var) = TAILQ_FIRST((head)); \
+		(var) && ((tvar) = TAILQ_NEXT((var), field), 1); \
+	(var) = (tvar))
+#endif
+
 int max10_sys_read(struct intel_max10_device *dev,
 	unsigned int offset, unsigned int *val)
 {
@@ -746,9 +753,9 @@ static int fdt_get_named_reg(const void *fdt, int node, const char *name,
 
 static void max10_sensor_uinit(struct intel_max10_device *dev)
 {
-	struct opae_sensor_info *info;
+	struct opae_sensor_info *info, *next;
 
-	TAILQ_FOREACH(info, &dev->opae_sensor_list, node) {
+	TAILQ_FOREACH_SAFE(info, &dev->opae_sensor_list, node, next) {
 		TAILQ_REMOVE(&dev->opae_sensor_list, info, node);
 		opae_free(info);
 	}
-- 
2.45.2

[PATCH v4 14/17] drivers/ifpga: fix free function mismatch

[Stephen Hemminger]

The raw ifpga driver redefines malloc to be opae_malloc
and free to be opae_free; which is a bad idea.

This leads to case where interrupt efd array is allocated
with calloc() and then passed to rte_free. The workaround
is to allocate the array with rte_calloc() instead.

Fixes: d61138d4f0e2 ("drivers: remove direct access to interrupt handle")
Cc: hkalra@marvell.com
Cc: stable@dpdk.org

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
---
 drivers/raw/ifpga/ifpga_rawdev.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/raw/ifpga/ifpga_rawdev.c b/drivers/raw/ifpga/ifpga_rawdev.c
index a972b3b7a4..86558c7b9b 100644
--- a/drivers/raw/ifpga/ifpga_rawdev.c
+++ b/drivers/raw/ifpga/ifpga_rawdev.c
@@ -1499,7 +1499,7 @@ ifpga_register_msix_irq(struct ifpga_rawdev *dev, int port_id,
 
 		nb_intr = rte_intr_nb_intr_get(*intr_handle);
 
-		intr_efds = calloc(nb_intr, sizeof(int));
+		intr_efds = rte_calloc("ifpga_efds", nb_intr, sizeof(int), 0);
 		if (!intr_efds)
 			return -ENOMEM;
 
@@ -1508,7 +1508,7 @@ ifpga_register_msix_irq(struct ifpga_rawdev *dev, int port_id,
 
 		ret = opae_acc_set_irq(acc, vec_start, count, intr_efds);
 		if (ret) {
-			free(intr_efds);
+			rte_free(intr_efds);
 			return -EINVAL;
 		}
 	}
@@ -1517,13 +1517,13 @@ ifpga_register_msix_irq(struct ifpga_rawdev *dev, int port_id,
 	ret = rte_intr_callback_register(*intr_handle,
 			handler, (void *)arg);
 	if (ret) {
-		free(intr_efds);
+		rte_free(intr_efds);
 		return -EINVAL;
 	}
 
 	IFPGA_RAWDEV_PMD_INFO("success register %s interrupt\n", name);
 
-	free(intr_efds);
+	rte_free(intr_efds);
 	return 0;
 }
 
-- 
2.45.2

[PATCH v4 15/17] baseband/la12xx: prevent use after free

[Stephen Hemminger]

It is possible that the info pointer (hp) could get freed twice.
Fix by nulling after free.

In function 'setup_la12xx_dev',
inlined from 'la12xx_bbdev_create' at ../drivers/baseband/la12xx/bbdev_la12xx.c:1029:8,
inlined from 'la12xx_bbdev_probe' at ../drivers/baseband/la12xx/bbdev_la12xx.c:1075:9:
../drivers/baseband/la12xx/bbdev_la12xx.c:901:9: error: pointer 'hp_info' may be used after 'rte_free' [-Werror=use-after-free]
901 |         rte_free(hp);
|         ^~~~~~~~~~~~
../drivers/baseband/la12xx/bbdev_la12xx.c:791:17: note: call to 'rte_free' here
791 |                 rte_free(hp);
|                 ^~~~~~~~~~~~

Fixes: 24d0ba22546e ("baseband/la12xx: add queue and modem config")
Cc: stable@dpdk.org
Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
Reviewed-by:  Hemant Agrawal <hemant.agrawal@nxp.com>
---
 drivers/baseband/la12xx/bbdev_la12xx.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/baseband/la12xx/bbdev_la12xx.c b/drivers/baseband/la12xx/bbdev_la12xx.c
index 1a56e73abd..cad6f9490e 100644
--- a/drivers/baseband/la12xx/bbdev_la12xx.c
+++ b/drivers/baseband/la12xx/bbdev_la12xx.c
@@ -789,6 +789,7 @@ setup_la12xx_dev(struct rte_bbdev *dev)
 		ipc_priv->hugepg_start.size = hp->len;
 
 		rte_free(hp);
+		hp = NULL;
 	}
 
 	dev_ipc = open_ipc_dev(priv->modem_id);
-- 
2.45.2

[PATCH v5 02/17] cryptodev/bcmfs: fix mis-matched free

[Stephen Hemminger]

The device structure is allocated with rte_malloc() and
then incorrectly freed with free(). This will lead to
corrupt malloc pool.

Bugzilla ID: 1552
Fixes: c8e79da7c676 ("crypto/bcmfs: introduce BCMFS driver")
Cc: stable@dpdk.org

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
Acked-by: Ajit Khaparde <ajit.khaparde@broadcom.com>
---
 drivers/crypto/bcmfs/bcmfs_device.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/crypto/bcmfs/bcmfs_device.c b/drivers/crypto/bcmfs/bcmfs_device.c
index ada7ba342c..46522970d5 100644
--- a/drivers/crypto/bcmfs/bcmfs_device.c
+++ b/drivers/crypto/bcmfs/bcmfs_device.c
@@ -139,7 +139,7 @@ fsdev_allocate_one_dev(struct rte_vdev_device *vdev,
 	return fsdev;
 
 cleanup:
-	free(fsdev);
+	rte_free(fsdev);
 
 	return NULL;
 }
@@ -163,7 +163,7 @@ fsdev_release(struct bcmfs_device *fsdev)
 		return;
 
 	TAILQ_REMOVE(&fsdev_list, fsdev, next);
-	free(fsdev);
+	rte_free(fsdev);
 }
 
 static int
-- 
2.45.2

[PATCH v5 03/17] dma/ixd: fix incorrect free function in cleanup

[Stephen Hemminger]

The data structure is allocated with rte_malloc and incorrectly
freed in cleanup logic using free.

Bugzilla ID: 1549
Fixes: 9449330a8458 ("dma/idxd: create dmadev instances on PCI probe")
Cc: kevin.laatz@intel.com
Cc: stable@dpdk.org

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
---
 drivers/dma/idxd/idxd_pci.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/dma/idxd/idxd_pci.c b/drivers/dma/idxd/idxd_pci.c
index 81637d9420..f89e2b41ff 100644
--- a/drivers/dma/idxd/idxd_pci.c
+++ b/drivers/dma/idxd/idxd_pci.c
@@ -301,7 +301,7 @@ init_pci_device(struct rte_pci_device *dev, struct idxd_dmadev *idxd,
 	return nb_wqs;
 
 err:
-	free(pci);
+	rte_free(pci);
 	return err_code;
 }
 
-- 
2.45.2

Re: [PATCH v5 03/17] dma/ixd: fix incorrect free function in cleanup

[Bruce Richardson]

On Tue, Oct 01, 2024 at 09:35:26AM -0700, Stephen Hemminger wrote:
> The data structure is allocated with rte_malloc and incorrectly
> freed in cleanup logic using free.
> 
> Bugzilla ID: 1549
> Fixes: 9449330a8458 ("dma/idxd: create dmadev instances on PCI probe")
> Cc: kevin.laatz@intel.com
> Cc: stable@dpdk.org
> 
> Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
From previous revision:

Reviewed-by: Bruce Richardson <bruce.richardson@intel.com>

[PATCH v5 04/17] event/cnxk: fix pointer mismatch in cleanup

[Stephen Hemminger]

The code to cleanup in case of error was passing incorrect
value to rte_free. The ports[] entry was allocated with
rte_malloc and that should be used instead of the offset
in that object.

Fixes: 97a05c1fe634 ("event/cnxk: add port config")
Cc: sthotton@marvell.com
Cc: stable@dpdk.org

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
---
 drivers/event/cnxk/cnxk_eventdev.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/event/cnxk/cnxk_eventdev.c b/drivers/event/cnxk/cnxk_eventdev.c
index 4b2d6bffa6..08c6ce0c07 100644
--- a/drivers/event/cnxk/cnxk_eventdev.c
+++ b/drivers/event/cnxk/cnxk_eventdev.c
@@ -121,8 +121,10 @@ cnxk_setup_event_ports(const struct rte_eventdev *event_dev,
 	return 0;
 hws_fini:
 	for (i = i - 1; i >= 0; i--) {
+		void *ws = event_dev->data->ports[i];
+
 		event_dev->data->ports[i] = NULL;
-		rte_free(cnxk_sso_hws_get_cookie(event_dev->data->ports[i]));
+		rte_free(ws);
 	}
 	return -ENOMEM;
 }
-- 
2.45.2

[PATCH v5 05/17] examples/vhost: fix free function mismatch

[Stephen Hemminger]

The pointer bdev is allocated with rte_zmalloc() and then
incorrectly freed with free() which will lead pool corruption.

Bugzilla ID: 1553
Fixes: c19beb3f38cd ("examples/vhost_blk: introduce vhost storage sample")
Cc: stable@dpdk.org

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
Acked-by: Chengwen Feng <fengchengwen@huawei.com>
---
 examples/vhost_blk/vhost_blk.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/examples/vhost_blk/vhost_blk.c b/examples/vhost_blk/vhost_blk.c
index 03f1ac9c3f..9c9e326949 100644
--- a/examples/vhost_blk/vhost_blk.c
+++ b/examples/vhost_blk/vhost_blk.c
@@ -776,7 +776,7 @@ vhost_blk_bdev_construct(const char *bdev_name,
 	bdev->data = rte_zmalloc(NULL, blk_cnt * blk_size, 0);
 	if (!bdev->data) {
 		fprintf(stderr, "No enough reserved huge memory for disk\n");
-		free(bdev);
+		rte_free(bdev);
 		return NULL;
 	}
 
-- 
2.45.2

[PATCH v5 06/17] net/cnxk: fix use-after-free

[Stephen Hemminger]

The driver would refer to the mempool object after it was freed.

Bugzilla ID: 1554
Fixes: 7ea187184a51 ("common/cnxk: support 1-N pool-aura per NIX LF")
Cc: rbhansali@marvell.com
Cc: stable@dpdk.org

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
---
 drivers/net/cnxk/cnxk_ethdev_sec.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/cnxk/cnxk_ethdev_sec.c b/drivers/net/cnxk/cnxk_ethdev_sec.c
index 6f5319e534..e428d2115d 100644
--- a/drivers/net/cnxk/cnxk_ethdev_sec.c
+++ b/drivers/net/cnxk/cnxk_ethdev_sec.c
@@ -136,8 +136,8 @@ cnxk_nix_inl_custom_meta_pool_cb(uintptr_t pmpool, uintptr_t *mpool, const char
 			return -EINVAL;
 		}
 
-		rte_mempool_free(hp);
 		plt_free(hp->pool_config);
+		rte_mempool_free(hp);
 
 		*aura_handle = 0;
 		*mpool = 0;
-- 
2.45.2

[PATCH v5 07/17] bpf: fix free mismatch if convert fails

[Stephen Hemminger]

If conversion of cBF to eBPF fails then an object allocated with
rte_malloc() would be passed to free().

[908/3201] Compiling C object lib/librte_bpf.a.p/bpf_bpf_convert.c.o
../lib/bpf/bpf_convert.c: In function ‘rte_bpf_convert’:
../lib/bpf/bpf_convert.c:559:17: warning: ‘free’ called on pointer returned from a mismatched allocation function [-Wmismatched-dealloc]
  559 |                 free(prm);
      |                 ^~~~~~~~~
../lib/bpf/bpf_convert.c:545:15: note: returned from ‘rte_zmalloc’
  545 |         prm = rte_zmalloc("bpf_filter",
      |               ^~~~~~~~~~~~~~~~~~~~~~~~~
  546 |                           sizeof(*prm) + ebpf_len * sizeof(*ebpf), 0);
      |                           ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Fixes: 2eccf6afbea9 ("bpf: add function to convert classic BPF to DPDK BPF")
Cc: stable@dpdk.org
Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
---
 lib/bpf/bpf_convert.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/bpf/bpf_convert.c b/lib/bpf/bpf_convert.c
index d7ff2b4325..e7e298c9cb 100644
--- a/lib/bpf/bpf_convert.c
+++ b/lib/bpf/bpf_convert.c
@@ -556,7 +556,7 @@ rte_bpf_convert(const struct bpf_program *prog)
 	ret = bpf_convert_filter(prog->bf_insns, prog->bf_len, ebpf, &ebpf_len);
 	if (ret < 0) {
 		RTE_BPF_LOG_LINE(ERR, "%s: cannot convert cBPF to eBPF", __func__);
-		free(prm);
+		rte_free(prm);
 		rte_errno = -ret;
 		return NULL;
 	}
-- 
2.45.2

[PATCH v5 08/17] net/e1000: fix use-after-free

[Stephen Hemminger]

The driver cleanup code was freeing the filter object
then dereferencing it.

Bugzilla ID: 1550
Fixes: 6a4d050e2855 ("net/igb: flush all the filter")
Cc: stable@dpdk.org

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
---
 drivers/net/e1000/igb_ethdev.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/net/e1000/igb_ethdev.c b/drivers/net/e1000/igb_ethdev.c
index 095be27b08..973d0d2407 100644
--- a/drivers/net/e1000/igb_ethdev.c
+++ b/drivers/net/e1000/igb_ethdev.c
@@ -3907,11 +3907,11 @@ igb_delete_2tuple_filter(struct rte_eth_dev *dev,
 
 	filter_info->twotuple_mask &= ~(1 << filter->index);
 	TAILQ_REMOVE(&filter_info->twotuple_list, filter, entries);
-	rte_free(filter);
 
 	E1000_WRITE_REG(hw, E1000_TTQF(filter->index), E1000_TTQF_DISABLE_MASK);
 	E1000_WRITE_REG(hw, E1000_IMIR(filter->index), 0);
 	E1000_WRITE_REG(hw, E1000_IMIREXT(filter->index), 0);
+	rte_free(filter);
 	return 0;
 }
 
@@ -4348,7 +4348,6 @@ igb_delete_5tuple_filter_82576(struct rte_eth_dev *dev,
 
 	filter_info->fivetuple_mask &= ~(1 << filter->index);
 	TAILQ_REMOVE(&filter_info->fivetuple_list, filter, entries);
-	rte_free(filter);
 
 	E1000_WRITE_REG(hw, E1000_FTQF(filter->index),
 			E1000_FTQF_VF_BP | E1000_FTQF_MASK);
@@ -4357,6 +4356,7 @@ igb_delete_5tuple_filter_82576(struct rte_eth_dev *dev,
 	E1000_WRITE_REG(hw, E1000_SPQF(filter->index), 0);
 	E1000_WRITE_REG(hw, E1000_IMIR(filter->index), 0);
 	E1000_WRITE_REG(hw, E1000_IMIREXT(filter->index), 0);
+	rte_free(filter);
 	return 0;
 }
 
-- 
2.45.2

[PATCH v5 10/17] net/cpfl: fix free of nonheap object

[Stephen Hemminger]

With proper annotation, GCC discovers that this driver is
calling rte_free() on an object that was not allocated
(it is part of array in another object).

In function ‘cpfl_flow_js_mr_layout’,
    inlined from ‘cpfl_flow_js_mr_action’ at ../drivers/net/cpfl/cpfl_flow_parser.c:848:9,
    inlined from ‘cpfl_flow_js_mod_rule’ at ../drivers/net/cpfl/cpfl_flow_parser.c:908:9,
    inlined from ‘cpfl_parser_init’ at ../drivers/net/cpfl/cpfl_flow_parser.c:932:8,
    inlined from ‘cpfl_parser_create’ at ../drivers/net/cpfl/cpfl_flow_parser.c:959:8:
../drivers/net/cpfl/cpfl_flow_parser.c:740:9: warning: ‘rte_free’ called on pointer ‘*parser.modifications’ with nonzero offset [28, 15479062120396] [-Wfree-nonheap-object]
  740 |         rte_free(js_mod->layout);
      |         ^~~~~~~~~~~~~~~~~~~~~~~~

Fixes: 6cc97c9971d7 ("net/cpfl: build action mapping rules from JSON")
Cc: wenjing.qiao@intel.com
Cc: stable@dpdk.org

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
---
 drivers/net/cpfl/cpfl_flow_parser.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/net/cpfl/cpfl_flow_parser.c b/drivers/net/cpfl/cpfl_flow_parser.c
index 40569ddc6f..30abaad7c8 100644
--- a/drivers/net/cpfl/cpfl_flow_parser.c
+++ b/drivers/net/cpfl/cpfl_flow_parser.c
@@ -737,7 +737,6 @@ cpfl_flow_js_mr_layout(json_t *ob_layouts, struct cpfl_flow_js_mr_action_mod *js
 	return 0;
 
 err:
-	rte_free(js_mod->layout);
 	return -EINVAL;
 }
 
-- 
2.45.2

[PATCH v5 12/17] raw/ifpga/base: fix use after free

[Stephen Hemminger]

The TAILQ_FOREACH() macro would refer to info after it
had been freed. Fix by introducing TAILQ_FOREACH_SAFE here.

Fixes: 4a19f89104f8 ("raw/ifpga/base: support multiple cards")
Cc: stable@dpdk.org

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
---
 drivers/raw/ifpga/base/opae_intel_max10.c | 11 +++++++++--
 1 file changed, 9 insertions(+), 2 deletions(-)

diff --git a/drivers/raw/ifpga/base/opae_intel_max10.c b/drivers/raw/ifpga/base/opae_intel_max10.c
index dd97a5f9fd..d5a9ceb6e3 100644
--- a/drivers/raw/ifpga/base/opae_intel_max10.c
+++ b/drivers/raw/ifpga/base/opae_intel_max10.c
@@ -6,6 +6,13 @@
 #include <libfdt.h>
 #include "opae_osdep.h"
 
+#ifndef TAILQ_FOREACH_SAFE
+#define TAILQ_FOREACH_SAFE(var, head, field, tvar) \
+	for ((var) = TAILQ_FIRST((head)); \
+		(var) && ((tvar) = TAILQ_NEXT((var), field), 1); \
+	(var) = (tvar))
+#endif
+
 int max10_sys_read(struct intel_max10_device *dev,
 	unsigned int offset, unsigned int *val)
 {
@@ -746,9 +753,9 @@ static int fdt_get_named_reg(const void *fdt, int node, const char *name,
 
 static void max10_sensor_uinit(struct intel_max10_device *dev)
 {
-	struct opae_sensor_info *info;
+	struct opae_sensor_info *info, *next;
 
-	TAILQ_FOREACH(info, &dev->opae_sensor_list, node) {
+	TAILQ_FOREACH_SAFE(info, &dev->opae_sensor_list, node, next) {
 		TAILQ_REMOVE(&dev->opae_sensor_list, info, node);
 		opae_free(info);
 	}
-- 
2.45.2

[PATCH v5 14/17] drivers/ifpga: fix free function mismatch

[Stephen Hemminger]

The raw ifpga driver redefines malloc to be opae_malloc
and free to be opae_free; which is a bad idea.

This leads to case where interrupt efd array is allocated
with calloc() and then passed to rte_free. The workaround
is to allocate the array with rte_calloc() instead.

Fixes: d61138d4f0e2 ("drivers: remove direct access to interrupt handle")
Cc: hkalra@marvell.com
Cc: stable@dpdk.org

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
---
 drivers/raw/ifpga/ifpga_rawdev.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/raw/ifpga/ifpga_rawdev.c b/drivers/raw/ifpga/ifpga_rawdev.c
index a972b3b7a4..86558c7b9b 100644
--- a/drivers/raw/ifpga/ifpga_rawdev.c
+++ b/drivers/raw/ifpga/ifpga_rawdev.c
@@ -1499,7 +1499,7 @@ ifpga_register_msix_irq(struct ifpga_rawdev *dev, int port_id,
 
 		nb_intr = rte_intr_nb_intr_get(*intr_handle);
 
-		intr_efds = calloc(nb_intr, sizeof(int));
+		intr_efds = rte_calloc("ifpga_efds", nb_intr, sizeof(int), 0);
 		if (!intr_efds)
 			return -ENOMEM;
 
@@ -1508,7 +1508,7 @@ ifpga_register_msix_irq(struct ifpga_rawdev *dev, int port_id,
 
 		ret = opae_acc_set_irq(acc, vec_start, count, intr_efds);
 		if (ret) {
-			free(intr_efds);
+			rte_free(intr_efds);
 			return -EINVAL;
 		}
 	}
@@ -1517,13 +1517,13 @@ ifpga_register_msix_irq(struct ifpga_rawdev *dev, int port_id,
 	ret = rte_intr_callback_register(*intr_handle,
 			handler, (void *)arg);
 	if (ret) {
-		free(intr_efds);
+		rte_free(intr_efds);
 		return -EINVAL;
 	}
 
 	IFPGA_RAWDEV_PMD_INFO("success register %s interrupt\n", name);
 
-	free(intr_efds);
+	rte_free(intr_efds);
 	return 0;
 }
 
-- 
2.45.2

[PATCH v5 15/17] baseband/la12xx: prevent use after free

[Stephen Hemminger]

It is possible that the info pointer (hp) could get freed twice.
Fix by nulling after free.

In function 'setup_la12xx_dev',
inlined from 'la12xx_bbdev_create' at ../drivers/baseband/la12xx/bbdev_la12xx.c:1029:8,
inlined from 'la12xx_bbdev_probe' at ../drivers/baseband/la12xx/bbdev_la12xx.c:1075:9:
../drivers/baseband/la12xx/bbdev_la12xx.c:901:9: error: pointer 'hp_info' may be used after 'rte_free' [-Werror=use-after-free]
901 |         rte_free(hp);
|         ^~~~~~~~~~~~
../drivers/baseband/la12xx/bbdev_la12xx.c:791:17: note: call to 'rte_free' here
791 |                 rte_free(hp);
|                 ^~~~~~~~~~~~

Fixes: 24d0ba22546e ("baseband/la12xx: add queue and modem config")
Cc: stable@dpdk.org
Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
Reviewed-by: Hemant Agrawal <hemant.agrawal@nxp.com>
---
 drivers/baseband/la12xx/bbdev_la12xx.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/baseband/la12xx/bbdev_la12xx.c b/drivers/baseband/la12xx/bbdev_la12xx.c
index 1a56e73abd..cad6f9490e 100644
--- a/drivers/baseband/la12xx/bbdev_la12xx.c
+++ b/drivers/baseband/la12xx/bbdev_la12xx.c
@@ -789,6 +789,7 @@ setup_la12xx_dev(struct rte_bbdev *dev)
 		ipc_priv->hugepg_start.size = hp->len;
 
 		rte_free(hp);
+		hp = NULL;
 	}
 
 	dev_ipc = open_ipc_dev(priv->modem_id);
-- 
2.45.2

[PATCH v6 02/17] cryptodev/bcmfs: fix mis-matched free

[Stephen Hemminger]

The device structure is allocated with rte_malloc() and
then incorrectly freed with free(). This will lead to
corrupt malloc pool.

Bugzilla ID: 1552
Fixes: c8e79da7c676 ("crypto/bcmfs: introduce BCMFS driver")
Cc: stable@dpdk.org

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
Acked-by: Ajit Khaparde <ajit.khaparde@broadcom.com>
---
 drivers/crypto/bcmfs/bcmfs_device.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/crypto/bcmfs/bcmfs_device.c b/drivers/crypto/bcmfs/bcmfs_device.c
index ada7ba342c..46522970d5 100644
--- a/drivers/crypto/bcmfs/bcmfs_device.c
+++ b/drivers/crypto/bcmfs/bcmfs_device.c
@@ -139,7 +139,7 @@ fsdev_allocate_one_dev(struct rte_vdev_device *vdev,
 	return fsdev;
 
 cleanup:
-	free(fsdev);
+	rte_free(fsdev);
 
 	return NULL;
 }
@@ -163,7 +163,7 @@ fsdev_release(struct bcmfs_device *fsdev)
 		return;
 
 	TAILQ_REMOVE(&fsdev_list, fsdev, next);
-	free(fsdev);
+	rte_free(fsdev);
 }
 
 static int
-- 
2.45.2

[PATCH v6 03/17] dma/ixd: fix incorrect free function in cleanup

[Stephen Hemminger]

The data structure is allocated with rte_malloc and incorrectly
freed in cleanup logic using free.

Bugzilla ID: 1549
Fixes: 9449330a8458 ("dma/idxd: create dmadev instances on PCI probe")
Cc: kevin.laatz@intel.com
Cc: stable@dpdk.org

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
Reviewed-by: Bruce Richardson <bruce.richardson@intel.com>
---
 drivers/dma/idxd/idxd_pci.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/dma/idxd/idxd_pci.c b/drivers/dma/idxd/idxd_pci.c
index 81637d9420..f89e2b41ff 100644
--- a/drivers/dma/idxd/idxd_pci.c
+++ b/drivers/dma/idxd/idxd_pci.c
@@ -301,7 +301,7 @@ init_pci_device(struct rte_pci_device *dev, struct idxd_dmadev *idxd,
 	return nb_wqs;
 
 err:
-	free(pci);
+	rte_free(pci);
 	return err_code;
 }
 
-- 
2.45.2

[PATCH v6 04/17] event/cnxk: fix pointer mismatch in cleanup

[Stephen Hemminger]

The code to cleanup in case of error was passing incorrect
value to rte_free. The ports[] entry was allocated with
rte_malloc and that should be used instead of the offset
in that object.

Fixes: 97a05c1fe634 ("event/cnxk: add port config")
Cc: sthotton@marvell.com
Cc: stable@dpdk.org

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
---
 drivers/event/cnxk/cnxk_eventdev.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/event/cnxk/cnxk_eventdev.c b/drivers/event/cnxk/cnxk_eventdev.c
index 4b2d6bffa6..08c6ce0c07 100644
--- a/drivers/event/cnxk/cnxk_eventdev.c
+++ b/drivers/event/cnxk/cnxk_eventdev.c
@@ -121,8 +121,10 @@ cnxk_setup_event_ports(const struct rte_eventdev *event_dev,
 	return 0;
 hws_fini:
 	for (i = i - 1; i >= 0; i--) {
+		void *ws = event_dev->data->ports[i];
+
 		event_dev->data->ports[i] = NULL;
-		rte_free(cnxk_sso_hws_get_cookie(event_dev->data->ports[i]));
+		rte_free(ws);
 	}
 	return -ENOMEM;
 }
-- 
2.45.2

[PATCH v6 05/17] examples/vhost: fix free function mismatch

[Stephen Hemminger]

The pointer bdev is allocated with rte_zmalloc() and then
incorrectly freed with free() which will lead pool corruption.

Bugzilla ID: 1553
Fixes: c19beb3f38cd ("examples/vhost_blk: introduce vhost storage sample")
Cc: stable@dpdk.org

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
Acked-by: Chengwen Feng <fengchengwen@huawei.com>
---
 examples/vhost_blk/vhost_blk.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/examples/vhost_blk/vhost_blk.c b/examples/vhost_blk/vhost_blk.c
index 03f1ac9c3f..9c9e326949 100644
--- a/examples/vhost_blk/vhost_blk.c
+++ b/examples/vhost_blk/vhost_blk.c
@@ -776,7 +776,7 @@ vhost_blk_bdev_construct(const char *bdev_name,
 	bdev->data = rte_zmalloc(NULL, blk_cnt * blk_size, 0);
 	if (!bdev->data) {
 		fprintf(stderr, "No enough reserved huge memory for disk\n");
-		free(bdev);
+		rte_free(bdev);
 		return NULL;
 	}
 
-- 
2.45.2

[PATCH v6 06/17] net/cnxk: fix use-after-free

[Stephen Hemminger]

The driver would refer to the mempool object after it was freed.

Bugzilla ID: 1554
Fixes: 7ea187184a51 ("common/cnxk: support 1-N pool-aura per NIX LF")
Cc: rbhansali@marvell.com
Cc: stable@dpdk.org

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
---
 drivers/net/cnxk/cnxk_ethdev_sec.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/cnxk/cnxk_ethdev_sec.c b/drivers/net/cnxk/cnxk_ethdev_sec.c
index 6f5319e534..e428d2115d 100644
--- a/drivers/net/cnxk/cnxk_ethdev_sec.c
+++ b/drivers/net/cnxk/cnxk_ethdev_sec.c
@@ -136,8 +136,8 @@ cnxk_nix_inl_custom_meta_pool_cb(uintptr_t pmpool, uintptr_t *mpool, const char
 			return -EINVAL;
 		}
 
-		rte_mempool_free(hp);
 		plt_free(hp->pool_config);
+		rte_mempool_free(hp);
 
 		*aura_handle = 0;
 		*mpool = 0;
-- 
2.45.2

[PATCH v6 07/17] bpf: fix free mismatch if convert fails

[Stephen Hemminger]

If conversion of cBF to eBPF fails then an object allocated with
rte_malloc() would be passed to free().

[908/3201] Compiling C object lib/librte_bpf.a.p/bpf_bpf_convert.c.o
../lib/bpf/bpf_convert.c: In function ‘rte_bpf_convert’:
../lib/bpf/bpf_convert.c:559:17: warning: ‘free’ called on pointer returned from a mismatched allocation function [-Wmismatched-dealloc]
  559 |                 free(prm);
      |                 ^~~~~~~~~
../lib/bpf/bpf_convert.c:545:15: note: returned from ‘rte_zmalloc’
  545 |         prm = rte_zmalloc("bpf_filter",
      |               ^~~~~~~~~~~~~~~~~~~~~~~~~
  546 |                           sizeof(*prm) + ebpf_len * sizeof(*ebpf), 0);
      |                           ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Fixes: 2eccf6afbea9 ("bpf: add function to convert classic BPF to DPDK BPF")
Cc: stable@dpdk.org
Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
---
 lib/bpf/bpf_convert.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/bpf/bpf_convert.c b/lib/bpf/bpf_convert.c
index d7ff2b4325..e7e298c9cb 100644
--- a/lib/bpf/bpf_convert.c
+++ b/lib/bpf/bpf_convert.c
@@ -556,7 +556,7 @@ rte_bpf_convert(const struct bpf_program *prog)
 	ret = bpf_convert_filter(prog->bf_insns, prog->bf_len, ebpf, &ebpf_len);
 	if (ret < 0) {
 		RTE_BPF_LOG_LINE(ERR, "%s: cannot convert cBPF to eBPF", __func__);
-		free(prm);
+		rte_free(prm);
 		rte_errno = -ret;
 		return NULL;
 	}
-- 
2.45.2

[PATCH v6 08/17] net/e1000: fix use-after-free

[Stephen Hemminger]

The driver cleanup code was freeing the filter object
then dereferencing it.

Bugzilla ID: 1550
Fixes: 6a4d050e2855 ("net/igb: flush all the filter")
Cc: stable@dpdk.org

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
---
 drivers/net/e1000/igb_ethdev.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/net/e1000/igb_ethdev.c b/drivers/net/e1000/igb_ethdev.c
index 095be27b08..973d0d2407 100644
--- a/drivers/net/e1000/igb_ethdev.c
+++ b/drivers/net/e1000/igb_ethdev.c
@@ -3907,11 +3907,11 @@ igb_delete_2tuple_filter(struct rte_eth_dev *dev,
 
 	filter_info->twotuple_mask &= ~(1 << filter->index);
 	TAILQ_REMOVE(&filter_info->twotuple_list, filter, entries);
-	rte_free(filter);
 
 	E1000_WRITE_REG(hw, E1000_TTQF(filter->index), E1000_TTQF_DISABLE_MASK);
 	E1000_WRITE_REG(hw, E1000_IMIR(filter->index), 0);
 	E1000_WRITE_REG(hw, E1000_IMIREXT(filter->index), 0);
+	rte_free(filter);
 	return 0;
 }
 
@@ -4348,7 +4348,6 @@ igb_delete_5tuple_filter_82576(struct rte_eth_dev *dev,
 
 	filter_info->fivetuple_mask &= ~(1 << filter->index);
 	TAILQ_REMOVE(&filter_info->fivetuple_list, filter, entries);
-	rte_free(filter);
 
 	E1000_WRITE_REG(hw, E1000_FTQF(filter->index),
 			E1000_FTQF_VF_BP | E1000_FTQF_MASK);
@@ -4357,6 +4356,7 @@ igb_delete_5tuple_filter_82576(struct rte_eth_dev *dev,
 	E1000_WRITE_REG(hw, E1000_SPQF(filter->index), 0);
 	E1000_WRITE_REG(hw, E1000_IMIR(filter->index), 0);
 	E1000_WRITE_REG(hw, E1000_IMIREXT(filter->index), 0);
+	rte_free(filter);
 	return 0;
 }
 
-- 
2.45.2

[PATCH v6 10/17] net/cpfl: fix free of nonheap object

[Stephen Hemminger]

With proper annotation, GCC discovers that this driver is
calling rte_free() on an object that was not allocated
(it is part of array in another object).

In function ‘cpfl_flow_js_mr_layout’,
    inlined from ‘cpfl_flow_js_mr_action’ at ../drivers/net/cpfl/cpfl_flow_parser.c:848:9,
    inlined from ‘cpfl_flow_js_mod_rule’ at ../drivers/net/cpfl/cpfl_flow_parser.c:908:9,
    inlined from ‘cpfl_parser_init’ at ../drivers/net/cpfl/cpfl_flow_parser.c:932:8,
    inlined from ‘cpfl_parser_create’ at ../drivers/net/cpfl/cpfl_flow_parser.c:959:8:
../drivers/net/cpfl/cpfl_flow_parser.c:740:9: warning: ‘rte_free’ called on pointer ‘*parser.modifications’ with nonzero offset [28, 15479062120396] [-Wfree-nonheap-object]
  740 |         rte_free(js_mod->layout);
      |         ^~~~~~~~~~~~~~~~~~~~~~~~

Fixes: 6cc97c9971d7 ("net/cpfl: build action mapping rules from JSON")
Cc: wenjing.qiao@intel.com
Cc: stable@dpdk.org

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
---
 drivers/net/cpfl/cpfl_flow_parser.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/net/cpfl/cpfl_flow_parser.c b/drivers/net/cpfl/cpfl_flow_parser.c
index 40569ddc6f..30abaad7c8 100644
--- a/drivers/net/cpfl/cpfl_flow_parser.c
+++ b/drivers/net/cpfl/cpfl_flow_parser.c
@@ -737,7 +737,6 @@ cpfl_flow_js_mr_layout(json_t *ob_layouts, struct cpfl_flow_js_mr_action_mod *js
 	return 0;
 
 err:
-	rte_free(js_mod->layout);
 	return -EINVAL;
 }
 
-- 
2.45.2

[PATCH v6 12/17] raw/ifpga/base: fix use after free

[Stephen Hemminger]

The TAILQ_FOREACH() macro would refer to info after it
had been freed. Fix by introducing TAILQ_FOREACH_SAFE here.

Fixes: 4a19f89104f8 ("raw/ifpga/base: support multiple cards")
Cc: stable@dpdk.org

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
---
 drivers/raw/ifpga/base/opae_intel_max10.c | 11 +++++++++--
 1 file changed, 9 insertions(+), 2 deletions(-)

diff --git a/drivers/raw/ifpga/base/opae_intel_max10.c b/drivers/raw/ifpga/base/opae_intel_max10.c
index dd97a5f9fd..d5a9ceb6e3 100644
--- a/drivers/raw/ifpga/base/opae_intel_max10.c
+++ b/drivers/raw/ifpga/base/opae_intel_max10.c
@@ -6,6 +6,13 @@
 #include <libfdt.h>
 #include "opae_osdep.h"
 
+#ifndef TAILQ_FOREACH_SAFE
+#define TAILQ_FOREACH_SAFE(var, head, field, tvar) \
+	for ((var) = TAILQ_FIRST((head)); \
+		(var) && ((tvar) = TAILQ_NEXT((var), field), 1); \
+	(var) = (tvar))
+#endif
+
 int max10_sys_read(struct intel_max10_device *dev,
 	unsigned int offset, unsigned int *val)
 {
@@ -746,9 +753,9 @@ static int fdt_get_named_reg(const void *fdt, int node, const char *name,
 
 static void max10_sensor_uinit(struct intel_max10_device *dev)
 {
-	struct opae_sensor_info *info;
+	struct opae_sensor_info *info, *next;
 
-	TAILQ_FOREACH(info, &dev->opae_sensor_list, node) {
+	TAILQ_FOREACH_SAFE(info, &dev->opae_sensor_list, node, next) {
 		TAILQ_REMOVE(&dev->opae_sensor_list, info, node);
 		opae_free(info);
 	}
-- 
2.45.2

[PATCH v6 14/17] drivers/ifpga: fix free function mismatch

[Stephen Hemminger]

The raw ifpga driver redefines malloc to be opae_malloc
and free to be opae_free; which is a bad idea.

This leads to case where interrupt efd array is allocated
with calloc() and then passed to rte_free. The workaround
is to allocate the array with rte_calloc() instead.

Fixes: d61138d4f0e2 ("drivers: remove direct access to interrupt handle")
Cc: hkalra@marvell.com
Cc: stable@dpdk.org

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
---
 drivers/raw/ifpga/ifpga_rawdev.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/raw/ifpga/ifpga_rawdev.c b/drivers/raw/ifpga/ifpga_rawdev.c
index a972b3b7a4..86558c7b9b 100644
--- a/drivers/raw/ifpga/ifpga_rawdev.c
+++ b/drivers/raw/ifpga/ifpga_rawdev.c
@@ -1499,7 +1499,7 @@ ifpga_register_msix_irq(struct ifpga_rawdev *dev, int port_id,
 
 		nb_intr = rte_intr_nb_intr_get(*intr_handle);
 
-		intr_efds = calloc(nb_intr, sizeof(int));
+		intr_efds = rte_calloc("ifpga_efds", nb_intr, sizeof(int), 0);
 		if (!intr_efds)
 			return -ENOMEM;
 
@@ -1508,7 +1508,7 @@ ifpga_register_msix_irq(struct ifpga_rawdev *dev, int port_id,
 
 		ret = opae_acc_set_irq(acc, vec_start, count, intr_efds);
 		if (ret) {
-			free(intr_efds);
+			rte_free(intr_efds);
 			return -EINVAL;
 		}
 	}
@@ -1517,13 +1517,13 @@ ifpga_register_msix_irq(struct ifpga_rawdev *dev, int port_id,
 	ret = rte_intr_callback_register(*intr_handle,
 			handler, (void *)arg);
 	if (ret) {
-		free(intr_efds);
+		rte_free(intr_efds);
 		return -EINVAL;
 	}
 
 	IFPGA_RAWDEV_PMD_INFO("success register %s interrupt\n", name);
 
-	free(intr_efds);
+	rte_free(intr_efds);
 	return 0;
 }
 
-- 
2.45.2

[PATCH v6 15/17] baseband/la12xx: prevent use after free

[Stephen Hemminger]

It is possible that the info pointer (hp) could get freed twice.
Fix by nulling after free.

In function 'setup_la12xx_dev',
inlined from 'la12xx_bbdev_create' at ../drivers/baseband/la12xx/bbdev_la12xx.c:1029:8,
inlined from 'la12xx_bbdev_probe' at ../drivers/baseband/la12xx/bbdev_la12xx.c:1075:9:
../drivers/baseband/la12xx/bbdev_la12xx.c:901:9: error: pointer 'hp_info' may be used after 'rte_free' [-Werror=use-after-free]
901 |         rte_free(hp);
|         ^~~~~~~~~~~~
../drivers/baseband/la12xx/bbdev_la12xx.c:791:17: note: call to 'rte_free' here
791 |                 rte_free(hp);
|                 ^~~~~~~~~~~~

Fixes: 24d0ba22546e ("baseband/la12xx: add queue and modem config")
Cc: stable@dpdk.org
Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
Reviewed-by: Hemant Agrawal <hemant.agrawal@nxp.com>
---
 drivers/baseband/la12xx/bbdev_la12xx.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/baseband/la12xx/bbdev_la12xx.c b/drivers/baseband/la12xx/bbdev_la12xx.c
index 1a56e73abd..cad6f9490e 100644
--- a/drivers/baseband/la12xx/bbdev_la12xx.c
+++ b/drivers/baseband/la12xx/bbdev_la12xx.c
@@ -789,6 +789,7 @@ setup_la12xx_dev(struct rte_bbdev *dev)
 		ipc_priv->hugepg_start.size = hp->len;
 
 		rte_free(hp);
+		hp = NULL;
 	}
 
 	dev_ipc = open_ipc_dev(priv->modem_id);
-- 
2.45.2

[PATCH v7 02/16] cryptodev/bcmfs: fix mis-matched free

[Stephen Hemminger]

The device structure is allocated with rte_malloc() and
then incorrectly freed with free(). This will lead to
corrupt malloc pool.

Bugzilla ID: 1552
Fixes: c8e79da7c676 ("crypto/bcmfs: introduce BCMFS driver")
Cc: stable@dpdk.org

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
Acked-by: Ajit Khaparde <ajit.khaparde@broadcom.com>
---
 drivers/crypto/bcmfs/bcmfs_device.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/crypto/bcmfs/bcmfs_device.c b/drivers/crypto/bcmfs/bcmfs_device.c
index ada7ba342c..46522970d5 100644
--- a/drivers/crypto/bcmfs/bcmfs_device.c
+++ b/drivers/crypto/bcmfs/bcmfs_device.c
@@ -139,7 +139,7 @@ fsdev_allocate_one_dev(struct rte_vdev_device *vdev,
 	return fsdev;
 
 cleanup:
-	free(fsdev);
+	rte_free(fsdev);
 
 	return NULL;
 }
@@ -163,7 +163,7 @@ fsdev_release(struct bcmfs_device *fsdev)
 		return;
 
 	TAILQ_REMOVE(&fsdev_list, fsdev, next);
-	free(fsdev);
+	rte_free(fsdev);
 }
 
 static int
-- 
2.45.2

[PATCH v7 03/16] dma/ixd: fix incorrect free function in cleanup

[Stephen Hemminger]

The data structure is allocated with rte_malloc and incorrectly
freed in cleanup logic using free.

Bugzilla ID: 1549
Fixes: 9449330a8458 ("dma/idxd: create dmadev instances on PCI probe")
Cc: kevin.laatz@intel.com
Cc: stable@dpdk.org

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
Reviewed-by: Bruce Richardson <bruce.richardson@intel.com>
---
 drivers/dma/idxd/idxd_pci.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/dma/idxd/idxd_pci.c b/drivers/dma/idxd/idxd_pci.c
index 81637d9420..f89e2b41ff 100644
--- a/drivers/dma/idxd/idxd_pci.c
+++ b/drivers/dma/idxd/idxd_pci.c
@@ -301,7 +301,7 @@ init_pci_device(struct rte_pci_device *dev, struct idxd_dmadev *idxd,
 	return nb_wqs;
 
 err:
-	free(pci);
+	rte_free(pci);
 	return err_code;
 }
 
-- 
2.45.2

[PATCH v7 04/16] event/cnxk: fix pointer mismatch in cleanup

[Stephen Hemminger]

The code to cleanup in case of error was passing incorrect
value to rte_free. The ports[] entry was allocated with
rte_malloc and that should be used instead of the offset
in that object.

Fixes: 97a05c1fe634 ("event/cnxk: add port config")
Cc: sthotton@marvell.com
Cc: stable@dpdk.org

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
---
 drivers/event/cnxk/cnxk_eventdev.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/event/cnxk/cnxk_eventdev.c b/drivers/event/cnxk/cnxk_eventdev.c
index 4b2d6bffa6..08c6ce0c07 100644
--- a/drivers/event/cnxk/cnxk_eventdev.c
+++ b/drivers/event/cnxk/cnxk_eventdev.c
@@ -121,8 +121,10 @@ cnxk_setup_event_ports(const struct rte_eventdev *event_dev,
 	return 0;
 hws_fini:
 	for (i = i - 1; i >= 0; i--) {
+		void *ws = event_dev->data->ports[i];
+
 		event_dev->data->ports[i] = NULL;
-		rte_free(cnxk_sso_hws_get_cookie(event_dev->data->ports[i]));
+		rte_free(ws);
 	}
 	return -ENOMEM;
 }
-- 
2.45.2

RE: [EXTERNAL] [PATCH v7 04/16] event/cnxk: fix pointer mismatch in cleanup

[Pavan Nikhilesh Bhagavatula]

> The code to cleanup in case of error was passing incorrect
> value to rte_free. The ports[] entry was allocated with
> rte_malloc and that should be used instead of the offset
> in that object.
> 
> Fixes: 97a05c1fe634 ("event/cnxk: add port config")
> Cc: sthotton@marvell.com
> Cc: stable@dpdk.org
> 
> Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
> ---
>  drivers/event/cnxk/cnxk_eventdev.c | 4 +++-
>  1 file changed, 3 insertions(+), 1 deletion(-)
> 
> diff --git a/drivers/event/cnxk/cnxk_eventdev.c
> b/drivers/event/cnxk/cnxk_eventdev.c
> index 4b2d6bffa6..08c6ce0c07 100644
> --- a/drivers/event/cnxk/cnxk_eventdev.c
> +++ b/drivers/event/cnxk/cnxk_eventdev.c
> @@ -121,8 +121,10 @@ cnxk_setup_event_ports(const struct rte_eventdev
> *event_dev,
>  	return 0;
>  hws_fini:
>  	for (i = i - 1; i >= 0; i--) {
> +		void *ws = event_dev->data->ports[i];
> +
>  		event_dev->data->ports[i] = NULL;
> -		rte_free(cnxk_sso_hws_get_cookie(event_dev->data-
> >ports[i]));
> +		rte_free(ws);

Hi Stephen, 

The rte_zmalloc memory is pointing to the cookie[1], the memory assigned to 
event_dev->data->ports[i] is rte_zmalloc + RTE_CACHE_LINE_SIZE.

There is still a bug in the code where we are assigning NULL before freeing memory.
The fix should be 

	rte_free(cnxk_sso_hws_get_cookie(event_dev->data->ports[i]));
	event_dev->data->ports[i] = NULL;



[1]
	/* Allocate event port memory */
	ws = rte_zmalloc("cn10k_ws",
			 sizeof(struct cn10k_sso_hws) + RTE_CACHE_LINE_SIZE,
			 RTE_CACHE_LINE_SIZE);

	/* First cache line is reserved for cookie */
	ws = (struct cn10k_sso_hws *)((uint8_t *)ws + RTE_CACHE_LINE_SIZE);


Thanks,
Pavan.

>  	}
>  	return -ENOMEM;
>  }
> --
> 2.45.2

[PATCH v7 05/16] examples/vhost: fix free function mismatch

[Stephen Hemminger]

The pointer bdev is allocated with rte_zmalloc() and then
incorrectly freed with free() which will lead pool corruption.

Bugzilla ID: 1553
Fixes: c19beb3f38cd ("examples/vhost_blk: introduce vhost storage sample")
Cc: stable@dpdk.org

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
Acked-by: Chengwen Feng <fengchengwen@huawei.com>
---
 examples/vhost_blk/vhost_blk.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/examples/vhost_blk/vhost_blk.c b/examples/vhost_blk/vhost_blk.c
index 03f1ac9c3f..9c9e326949 100644
--- a/examples/vhost_blk/vhost_blk.c
+++ b/examples/vhost_blk/vhost_blk.c
@@ -776,7 +776,7 @@ vhost_blk_bdev_construct(const char *bdev_name,
 	bdev->data = rte_zmalloc(NULL, blk_cnt * blk_size, 0);
 	if (!bdev->data) {
 		fprintf(stderr, "No enough reserved huge memory for disk\n");
-		free(bdev);
+		rte_free(bdev);
 		return NULL;
 	}
 
-- 
2.45.2

[PATCH v7 06/16] net/cnxk: fix use-after-free

[Stephen Hemminger]

The driver would refer to the mempool object after it was freed.

Bugzilla ID: 1554
Fixes: 7ea187184a51 ("common/cnxk: support 1-N pool-aura per NIX LF")
Cc: rbhansali@marvell.com
Cc: stable@dpdk.org

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
---
 drivers/net/cnxk/cnxk_ethdev_sec.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/cnxk/cnxk_ethdev_sec.c b/drivers/net/cnxk/cnxk_ethdev_sec.c
index 6f5319e534..e428d2115d 100644
--- a/drivers/net/cnxk/cnxk_ethdev_sec.c
+++ b/drivers/net/cnxk/cnxk_ethdev_sec.c
@@ -136,8 +136,8 @@ cnxk_nix_inl_custom_meta_pool_cb(uintptr_t pmpool, uintptr_t *mpool, const char
 			return -EINVAL;
 		}
 
-		rte_mempool_free(hp);
 		plt_free(hp->pool_config);
+		rte_mempool_free(hp);
 
 		*aura_handle = 0;
 		*mpool = 0;
-- 
2.45.2

[PATCH v7 07/16] bpf: fix free mismatch if convert fails

[Stephen Hemminger]

If conversion of cBF to eBPF fails then an object allocated with
rte_malloc() would be passed to free().

[908/3201] Compiling C object lib/librte_bpf.a.p/bpf_bpf_convert.c.o
../lib/bpf/bpf_convert.c: In function ‘rte_bpf_convert’:
../lib/bpf/bpf_convert.c:559:17: warning: ‘free’ called on pointer returned from a mismatched allocation function [-Wmismatched-dealloc]
  559 |                 free(prm);
      |                 ^~~~~~~~~
../lib/bpf/bpf_convert.c:545:15: note: returned from ‘rte_zmalloc’
  545 |         prm = rte_zmalloc("bpf_filter",
      |               ^~~~~~~~~~~~~~~~~~~~~~~~~
  546 |                           sizeof(*prm) + ebpf_len * sizeof(*ebpf), 0);
      |                           ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Fixes: 2eccf6afbea9 ("bpf: add function to convert classic BPF to DPDK BPF")
Cc: stable@dpdk.org
Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
---
 lib/bpf/bpf_convert.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/bpf/bpf_convert.c b/lib/bpf/bpf_convert.c
index d7ff2b4325..e7e298c9cb 100644
--- a/lib/bpf/bpf_convert.c
+++ b/lib/bpf/bpf_convert.c
@@ -556,7 +556,7 @@ rte_bpf_convert(const struct bpf_program *prog)
 	ret = bpf_convert_filter(prog->bf_insns, prog->bf_len, ebpf, &ebpf_len);
 	if (ret < 0) {
 		RTE_BPF_LOG_LINE(ERR, "%s: cannot convert cBPF to eBPF", __func__);
-		free(prm);
+		rte_free(prm);
 		rte_errno = -ret;
 		return NULL;
 	}
-- 
2.45.2

[PATCH v7 08/16] net/e1000: fix use-after-free

[Stephen Hemminger]

The driver cleanup code was freeing the filter object
then dereferencing it.

Bugzilla ID: 1550
Fixes: 6a4d050e2855 ("net/igb: flush all the filter")
Cc: stable@dpdk.org

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
---
 drivers/net/e1000/igb_ethdev.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/net/e1000/igb_ethdev.c b/drivers/net/e1000/igb_ethdev.c
index 095be27b08..973d0d2407 100644
--- a/drivers/net/e1000/igb_ethdev.c
+++ b/drivers/net/e1000/igb_ethdev.c
@@ -3907,11 +3907,11 @@ igb_delete_2tuple_filter(struct rte_eth_dev *dev,
 
 	filter_info->twotuple_mask &= ~(1 << filter->index);
 	TAILQ_REMOVE(&filter_info->twotuple_list, filter, entries);
-	rte_free(filter);
 
 	E1000_WRITE_REG(hw, E1000_TTQF(filter->index), E1000_TTQF_DISABLE_MASK);
 	E1000_WRITE_REG(hw, E1000_IMIR(filter->index), 0);
 	E1000_WRITE_REG(hw, E1000_IMIREXT(filter->index), 0);
+	rte_free(filter);
 	return 0;
 }
 
@@ -4348,7 +4348,6 @@ igb_delete_5tuple_filter_82576(struct rte_eth_dev *dev,
 
 	filter_info->fivetuple_mask &= ~(1 << filter->index);
 	TAILQ_REMOVE(&filter_info->fivetuple_list, filter, entries);
-	rte_free(filter);
 
 	E1000_WRITE_REG(hw, E1000_FTQF(filter->index),
 			E1000_FTQF_VF_BP | E1000_FTQF_MASK);
@@ -4357,6 +4356,7 @@ igb_delete_5tuple_filter_82576(struct rte_eth_dev *dev,
 	E1000_WRITE_REG(hw, E1000_SPQF(filter->index), 0);
 	E1000_WRITE_REG(hw, E1000_IMIR(filter->index), 0);
 	E1000_WRITE_REG(hw, E1000_IMIREXT(filter->index), 0);
+	rte_free(filter);
 	return 0;
 }
 
-- 
2.45.2

[PATCH v7 10/16] net/cpfl: fix free of nonheap object

[Stephen Hemminger]

With proper annotation, GCC discovers that this driver is
calling rte_free() on an object that was not allocated
(it is part of array in another object).

In function ‘cpfl_flow_js_mr_layout’,
    inlined from ‘cpfl_flow_js_mr_action’ at ../drivers/net/cpfl/cpfl_flow_parser.c:848:9,
    inlined from ‘cpfl_flow_js_mod_rule’ at ../drivers/net/cpfl/cpfl_flow_parser.c:908:9,
    inlined from ‘cpfl_parser_init’ at ../drivers/net/cpfl/cpfl_flow_parser.c:932:8,
    inlined from ‘cpfl_parser_create’ at ../drivers/net/cpfl/cpfl_flow_parser.c:959:8:
../drivers/net/cpfl/cpfl_flow_parser.c:740:9: warning: ‘rte_free’ called on pointer ‘*parser.modifications’ with nonzero offset [28, 15479062120396] [-Wfree-nonheap-object]
  740 |         rte_free(js_mod->layout);
      |         ^~~~~~~~~~~~~~~~~~~~~~~~

Fixes: 6cc97c9971d7 ("net/cpfl: build action mapping rules from JSON")
Cc: wenjing.qiao@intel.com
Cc: stable@dpdk.org

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
---
 drivers/net/cpfl/cpfl_flow_parser.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/net/cpfl/cpfl_flow_parser.c b/drivers/net/cpfl/cpfl_flow_parser.c
index 40569ddc6f..30abaad7c8 100644
--- a/drivers/net/cpfl/cpfl_flow_parser.c
+++ b/drivers/net/cpfl/cpfl_flow_parser.c
@@ -737,7 +737,6 @@ cpfl_flow_js_mr_layout(json_t *ob_layouts, struct cpfl_flow_js_mr_action_mod *js
 	return 0;
 
 err:
-	rte_free(js_mod->layout);
 	return -EINVAL;
 }
 
-- 
2.45.2

[PATCH v7 12/16] raw/ifpga/base: fix use after free

[Stephen Hemminger]

The TAILQ_FOREACH() macro would refer to info after it
had been freed. Fix by introducing TAILQ_FOREACH_SAFE here.

Fixes: 4a19f89104f8 ("raw/ifpga/base: support multiple cards")
Cc: stable@dpdk.org

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
---
 drivers/raw/ifpga/base/opae_intel_max10.c | 11 +++++++++--
 1 file changed, 9 insertions(+), 2 deletions(-)

diff --git a/drivers/raw/ifpga/base/opae_intel_max10.c b/drivers/raw/ifpga/base/opae_intel_max10.c
index dd97a5f9fd..d5a9ceb6e3 100644
--- a/drivers/raw/ifpga/base/opae_intel_max10.c
+++ b/drivers/raw/ifpga/base/opae_intel_max10.c
@@ -6,6 +6,13 @@
 #include <libfdt.h>
 #include "opae_osdep.h"
 
+#ifndef TAILQ_FOREACH_SAFE
+#define TAILQ_FOREACH_SAFE(var, head, field, tvar) \
+	for ((var) = TAILQ_FIRST((head)); \
+		(var) && ((tvar) = TAILQ_NEXT((var), field), 1); \
+	(var) = (tvar))
+#endif
+
 int max10_sys_read(struct intel_max10_device *dev,
 	unsigned int offset, unsigned int *val)
 {
@@ -746,9 +753,9 @@ static int fdt_get_named_reg(const void *fdt, int node, const char *name,
 
 static void max10_sensor_uinit(struct intel_max10_device *dev)
 {
-	struct opae_sensor_info *info;
+	struct opae_sensor_info *info, *next;
 
-	TAILQ_FOREACH(info, &dev->opae_sensor_list, node) {
+	TAILQ_FOREACH_SAFE(info, &dev->opae_sensor_list, node, next) {
 		TAILQ_REMOVE(&dev->opae_sensor_list, info, node);
 		opae_free(info);
 	}
-- 
2.45.2

[PATCH v7 14/16] drivers/ifpga: fix free function mismatch

[Stephen Hemminger]

The raw ifpga driver redefines malloc to be opae_malloc
and free to be opae_free; which is a bad idea.

This leads to case where interrupt efd array is allocated
with calloc() and then passed to rte_free. The workaround
is to allocate the array with rte_calloc() instead.

Fixes: d61138d4f0e2 ("drivers: remove direct access to interrupt handle")
Cc: hkalra@marvell.com
Cc: stable@dpdk.org

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
---
 drivers/raw/ifpga/ifpga_rawdev.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/raw/ifpga/ifpga_rawdev.c b/drivers/raw/ifpga/ifpga_rawdev.c
index a972b3b7a4..86558c7b9b 100644
--- a/drivers/raw/ifpga/ifpga_rawdev.c
+++ b/drivers/raw/ifpga/ifpga_rawdev.c
@@ -1499,7 +1499,7 @@ ifpga_register_msix_irq(struct ifpga_rawdev *dev, int port_id,
 
 		nb_intr = rte_intr_nb_intr_get(*intr_handle);
 
-		intr_efds = calloc(nb_intr, sizeof(int));
+		intr_efds = rte_calloc("ifpga_efds", nb_intr, sizeof(int), 0);
 		if (!intr_efds)
 			return -ENOMEM;
 
@@ -1508,7 +1508,7 @@ ifpga_register_msix_irq(struct ifpga_rawdev *dev, int port_id,
 
 		ret = opae_acc_set_irq(acc, vec_start, count, intr_efds);
 		if (ret) {
-			free(intr_efds);
+			rte_free(intr_efds);
 			return -EINVAL;
 		}
 	}
@@ -1517,13 +1517,13 @@ ifpga_register_msix_irq(struct ifpga_rawdev *dev, int port_id,
 	ret = rte_intr_callback_register(*intr_handle,
 			handler, (void *)arg);
 	if (ret) {
-		free(intr_efds);
+		rte_free(intr_efds);
 		return -EINVAL;
 	}
 
 	IFPGA_RAWDEV_PMD_INFO("success register %s interrupt\n", name);
 
-	free(intr_efds);
+	rte_free(intr_efds);
 	return 0;
 }
 
-- 
2.45.2

[PATCH v7 15/16] baseband/la12xx: prevent use after free

[Stephen Hemminger]

It is possible that the info pointer (hp) could get freed twice.
Fix by nulling after free.

In function 'setup_la12xx_dev',
inlined from 'la12xx_bbdev_create' at ../drivers/baseband/la12xx/bbdev_la12xx.c:1029:8,
inlined from 'la12xx_bbdev_probe' at ../drivers/baseband/la12xx/bbdev_la12xx.c:1075:9:
../drivers/baseband/la12xx/bbdev_la12xx.c:901:9: error: pointer 'hp_info' may be used after 'rte_free' [-Werror=use-after-free]
901 |         rte_free(hp);
|         ^~~~~~~~~~~~
../drivers/baseband/la12xx/bbdev_la12xx.c:791:17: note: call to 'rte_free' here
791 |                 rte_free(hp);
|                 ^~~~~~~~~~~~

Fixes: 24d0ba22546e ("baseband/la12xx: add queue and modem config")
Cc: stable@dpdk.org
Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
Reviewed-by: Hemant Agrawal <hemant.agrawal@nxp.com>
---
 drivers/baseband/la12xx/bbdev_la12xx.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/baseband/la12xx/bbdev_la12xx.c b/drivers/baseband/la12xx/bbdev_la12xx.c
index 1a56e73abd..cad6f9490e 100644
--- a/drivers/baseband/la12xx/bbdev_la12xx.c
+++ b/drivers/baseband/la12xx/bbdev_la12xx.c
@@ -789,6 +789,7 @@ setup_la12xx_dev(struct rte_bbdev *dev)
 		ipc_priv->hugepg_start.size = hp->len;
 
 		rte_free(hp);
+		hp = NULL;
 	}
 
 	dev_ipc = open_ipc_dev(priv->modem_id);
-- 
2.45.2

[PATCH v8 02/17] cryptodev/bcmfs: fix mis-matched free

[Stephen Hemminger]

The device structure is allocated with rte_malloc() and
then incorrectly freed with free(). This will lead to
corrupt malloc pool.

Bugzilla ID: 1552
Fixes: c8e79da7c676 ("crypto/bcmfs: introduce BCMFS driver")
Cc: stable@dpdk.org

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
Acked-by: Ajit Khaparde <ajit.khaparde@broadcom.com>
---
 drivers/crypto/bcmfs/bcmfs_device.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/crypto/bcmfs/bcmfs_device.c b/drivers/crypto/bcmfs/bcmfs_device.c
index ada7ba342c..46522970d5 100644
--- a/drivers/crypto/bcmfs/bcmfs_device.c
+++ b/drivers/crypto/bcmfs/bcmfs_device.c
@@ -139,7 +139,7 @@ fsdev_allocate_one_dev(struct rte_vdev_device *vdev,
 	return fsdev;
 
 cleanup:
-	free(fsdev);
+	rte_free(fsdev);
 
 	return NULL;
 }
@@ -163,7 +163,7 @@ fsdev_release(struct bcmfs_device *fsdev)
 		return;
 
 	TAILQ_REMOVE(&fsdev_list, fsdev, next);
-	free(fsdev);
+	rte_free(fsdev);
 }
 
 static int
-- 
2.45.2

[PATCH v8 03/17] dma/ixd: fix incorrect free function in cleanup

[Stephen Hemminger]

The data structure is allocated with rte_malloc and incorrectly
freed in cleanup logic using free.

Bugzilla ID: 1549
Fixes: 9449330a8458 ("dma/idxd: create dmadev instances on PCI probe")
Cc: kevin.laatz@intel.com
Cc: stable@dpdk.org

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
Reviewed-by: Bruce Richardson <bruce.richardson@intel.com>
---
 drivers/dma/idxd/idxd_pci.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/dma/idxd/idxd_pci.c b/drivers/dma/idxd/idxd_pci.c
index 60ac219559..6ed03e96da 100644
--- a/drivers/dma/idxd/idxd_pci.c
+++ b/drivers/dma/idxd/idxd_pci.c
@@ -301,7 +301,7 @@ init_pci_device(struct rte_pci_device *dev, struct idxd_dmadev *idxd,
 	return nb_wqs;
 
 err:
-	free(pci);
+	rte_free(pci);
 	return err_code;
 }
 
-- 
2.45.2

[PATCH v8 04/17] event/cnxk: fix pointer mismatch in cleanup

[Stephen Hemminger]

The code to cleanup in case of error was passing incorrect
value to rte_free. The ports[] entry was allocated with
rte_malloc and that should be used instead of the offset
in that object.

Fixes: 97a05c1fe634 ("event/cnxk: add port config")
Cc: sthotton@marvell.com
Cc: stable@dpdk.org

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
---
 drivers/event/cnxk/cnxk_eventdev.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/event/cnxk/cnxk_eventdev.c b/drivers/event/cnxk/cnxk_eventdev.c
index 4b2d6bffa6..08c6ce0c07 100644
--- a/drivers/event/cnxk/cnxk_eventdev.c
+++ b/drivers/event/cnxk/cnxk_eventdev.c
@@ -121,8 +121,10 @@ cnxk_setup_event_ports(const struct rte_eventdev *event_dev,
 	return 0;
 hws_fini:
 	for (i = i - 1; i >= 0; i--) {
+		void *ws = event_dev->data->ports[i];
+
 		event_dev->data->ports[i] = NULL;
-		rte_free(cnxk_sso_hws_get_cookie(event_dev->data->ports[i]));
+		rte_free(ws);
 	}
 	return -ENOMEM;
 }
-- 
2.45.2

Re: [PATCH v8 04/17] event/cnxk: fix pointer mismatch in cleanup

[Stephen Hemminger]

On Tue,  8 Oct 2024 08:41:34 -0700
Stephen Hemminger <stephen@networkplumber.org> wrote:

> The code to cleanup in case of error was passing incorrect
> value to rte_free. The ports[] entry was allocated with
> rte_malloc and that should be used instead of the offset
> in that object.
> 
> Fixes: 97a05c1fe634 ("event/cnxk: add port config")
> Cc: sthotton@marvell.com
> Cc: stable@dpdk.org
> 
> Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
> ---
>  drivers/event/cnxk/cnxk_eventdev.c | 4 +++-
>  1 file changed, 3 insertions(+), 1 deletion(-)
> 
> diff --git a/drivers/event/cnxk/cnxk_eventdev.c b/drivers/event/cnxk/cnxk_eventdev.c
> index 4b2d6bffa6..08c6ce0c07 100644
> --- a/drivers/event/cnxk/cnxk_eventdev.c
> +++ b/drivers/event/cnxk/cnxk_eventdev.c
> @@ -121,8 +121,10 @@ cnxk_setup_event_ports(const struct rte_eventdev *event_dev,
>  	return 0;
>  hws_fini:
>  	for (i = i - 1; i >= 0; i--) {
> +		void *ws = event_dev->data->ports[i];
> +
>  		event_dev->data->ports[i] = NULL;
> -		rte_free(cnxk_sso_hws_get_cookie(event_dev->data->ports[i]));
> +		rte_free(ws);
>  	}
>  	return -ENOMEM;
>  }

This fix is not right, but something is wrong with the original code?

[865/3024] Compiling C object drivers/libtmp_rte_event_cnxk.a.p/event_cnxk_cnxk_eventdev.c.o
../drivers/event/cnxk/cnxk_eventdev.c: In function ‘cnxk_setup_event_ports’:
../drivers/event/cnxk/cnxk_eventdev.c:125:17: warning: ‘rte_free’ called on a pointer to an unallocated object ‘18446744073709551552’ [-Wfree-nonheap-object]
  125 |                 rte_free(cnxk_sso_hws_get_cookie(event_dev->data->ports[i]));
      |                 ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
[3024/3024] Linking target app/dpdk-test

RE: [EXTERNAL] Re: [PATCH v8 04/17] event/cnxk: fix pointer mismatch in cleanup

[Pavan Nikhilesh Bhagavatula]

> -----Original Message-----
> From: Stephen Hemminger <stephen@networkplumber.org>
> Sent: Tuesday, October 8, 2024 10:10 PM
> To: dev@dpdk.org
> Cc: Shijith Thotton <sthotton@marvell.com>; stable@dpdk.org; Pavan
> Nikhilesh Bhagavatula <pbhagavatula@marvell.com>
> Subject: [EXTERNAL] Re: [PATCH v8 04/17] event/cnxk: fix pointer mismatch
> in cleanup
> 
> On Tue, 8 Oct 2024 08: 41: 34 -0700 Stephen Hemminger
> <stephen@ networkplumber. org> wrote: > The code to cleanup in case of
> error was passing incorrect > value to rte_free. The ports[] entry was allocated
> with > rte_malloc and that
> 
> On Tue,  8 Oct 2024 08:41:34 -0700
> Stephen Hemminger <stephen@networkplumber.org> wrote:
> 
> > The code to cleanup in case of error was passing incorrect
> > value to rte_free. The ports[] entry was allocated with
> > rte_malloc and that should be used instead of the offset
> > in that object.
> >
> > Fixes: 97a05c1fe634 ("event/cnxk: add port config")
> > Cc: sthotton@marvell.com
> > Cc: stable@dpdk.org
> >
> > Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
> > ---
> >  drivers/event/cnxk/cnxk_eventdev.c | 4 +++-
> >  1 file changed, 3 insertions(+), 1 deletion(-)
> >
> > diff --git a/drivers/event/cnxk/cnxk_eventdev.c
> b/drivers/event/cnxk/cnxk_eventdev.c
> > index 4b2d6bffa6..08c6ce0c07 100644
> > --- a/drivers/event/cnxk/cnxk_eventdev.c
> > +++ b/drivers/event/cnxk/cnxk_eventdev.c
> > @@ -121,8 +121,10 @@ cnxk_setup_event_ports(const struct
> rte_eventdev *event_dev,
> >  	return 0;
> >  hws_fini:
> >  	for (i = i - 1; i >= 0; i--) {
> > +		void *ws = event_dev->data->ports[i];
> > +
> >  		event_dev->data->ports[i] = NULL;
> > -		rte_free(cnxk_sso_hws_get_cookie(event_dev->data-
> >ports[i]));
> > +		rte_free(ws);
> >  	}
> >  	return -ENOMEM;
> >  }
> 
> This fix is not right, but something is wrong with the original code?
> 

Yup, the NULL allocation should come after the free 

	rte_free(cnxk_sso_hws_get_cookie(event_dev->data->ports[i]));
	event_dev->data->ports[i] = NULL;


> [865/3024] Compiling C object
> drivers/libtmp_rte_event_cnxk.a.p/event_cnxk_cnxk_eventdev.c.o
> ../drivers/event/cnxk/cnxk_eventdev.c: In function ‘cnxk_setup_event_ports’:
> ../drivers/event/cnxk/cnxk_eventdev.c:125:17: warning: ‘rte_free’ called on a
> pointer to an unallocated object ‘18446744073709551552’ [-Wfree-
> nonheap-object]
>   125 |                 rte_free(cnxk_sso_hws_get_cookie(event_dev->data-
> >ports[i]));
>       |
> ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> [3024/3024] Linking target app/dpdk-test

[PATCH v8 05/17] examples/vhost: fix free function mismatch

[Stephen Hemminger]

The pointer bdev is allocated with rte_zmalloc() and then
incorrectly freed with free() which will lead pool corruption.

Bugzilla ID: 1553
Fixes: c19beb3f38cd ("examples/vhost_blk: introduce vhost storage sample")
Cc: stable@dpdk.org

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
Acked-by: Chengwen Feng <fengchengwen@huawei.com>
---
 examples/vhost_blk/vhost_blk.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/examples/vhost_blk/vhost_blk.c b/examples/vhost_blk/vhost_blk.c
index 03f1ac9c3f..9c9e326949 100644
--- a/examples/vhost_blk/vhost_blk.c
+++ b/examples/vhost_blk/vhost_blk.c
@@ -776,7 +776,7 @@ vhost_blk_bdev_construct(const char *bdev_name,
 	bdev->data = rte_zmalloc(NULL, blk_cnt * blk_size, 0);
 	if (!bdev->data) {
 		fprintf(stderr, "No enough reserved huge memory for disk\n");
-		free(bdev);
+		rte_free(bdev);
 		return NULL;
 	}
 
-- 
2.45.2

[PATCH v8 06/17] net/cnxk: fix use-after-free

[Stephen Hemminger]

The driver would refer to the mempool object after it was freed.

Bugzilla ID: 1554
Fixes: 7ea187184a51 ("common/cnxk: support 1-N pool-aura per NIX LF")
Cc: rbhansali@marvell.com
Cc: stable@dpdk.org

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
---
 drivers/net/cnxk/cnxk_ethdev_sec.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/cnxk/cnxk_ethdev_sec.c b/drivers/net/cnxk/cnxk_ethdev_sec.c
index 6f5319e534..e428d2115d 100644
--- a/drivers/net/cnxk/cnxk_ethdev_sec.c
+++ b/drivers/net/cnxk/cnxk_ethdev_sec.c
@@ -136,8 +136,8 @@ cnxk_nix_inl_custom_meta_pool_cb(uintptr_t pmpool, uintptr_t *mpool, const char
 			return -EINVAL;
 		}
 
-		rte_mempool_free(hp);
 		plt_free(hp->pool_config);
+		rte_mempool_free(hp);
 
 		*aura_handle = 0;
 		*mpool = 0;
-- 
2.45.2

[PATCH v8 07/17] bpf: fix free mismatch if convert fails

[Stephen Hemminger]

If conversion of cBF to eBPF fails then an object allocated with
rte_malloc() would be passed to free().

[908/3201] Compiling C object lib/librte_bpf.a.p/bpf_bpf_convert.c.o
../lib/bpf/bpf_convert.c: In function ‘rte_bpf_convert’:
../lib/bpf/bpf_convert.c:559:17: warning: ‘free’ called on pointer returned from a mismatched allocation function [-Wmismatched-dealloc]
  559 |                 free(prm);
      |                 ^~~~~~~~~
../lib/bpf/bpf_convert.c:545:15: note: returned from ‘rte_zmalloc’
  545 |         prm = rte_zmalloc("bpf_filter",
      |               ^~~~~~~~~~~~~~~~~~~~~~~~~
  546 |                           sizeof(*prm) + ebpf_len * sizeof(*ebpf), 0);
      |                           ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Fixes: 2eccf6afbea9 ("bpf: add function to convert classic BPF to DPDK BPF")
Cc: stable@dpdk.org
Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
---
 lib/bpf/bpf_convert.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/bpf/bpf_convert.c b/lib/bpf/bpf_convert.c
index d7ff2b4325..e7e298c9cb 100644
--- a/lib/bpf/bpf_convert.c
+++ b/lib/bpf/bpf_convert.c
@@ -556,7 +556,7 @@ rte_bpf_convert(const struct bpf_program *prog)
 	ret = bpf_convert_filter(prog->bf_insns, prog->bf_len, ebpf, &ebpf_len);
 	if (ret < 0) {
 		RTE_BPF_LOG_LINE(ERR, "%s: cannot convert cBPF to eBPF", __func__);
-		free(prm);
+		rte_free(prm);
 		rte_errno = -ret;
 		return NULL;
 	}
-- 
2.45.2

[PATCH v8 08/17] net/e1000: fix use-after-free

[Stephen Hemminger]

The driver cleanup code was freeing the filter object
then dereferencing it.

Bugzilla ID: 1550
Fixes: 6a4d050e2855 ("net/igb: flush all the filter")
Cc: stable@dpdk.org

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
---
 drivers/net/e1000/igb_ethdev.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/net/e1000/igb_ethdev.c b/drivers/net/e1000/igb_ethdev.c
index 1e0a483d4a..d3a9181874 100644
--- a/drivers/net/e1000/igb_ethdev.c
+++ b/drivers/net/e1000/igb_ethdev.c
@@ -3907,11 +3907,11 @@ igb_delete_2tuple_filter(struct rte_eth_dev *dev,
 
 	filter_info->twotuple_mask &= ~(1 << filter->index);
 	TAILQ_REMOVE(&filter_info->twotuple_list, filter, entries);
-	rte_free(filter);
 
 	E1000_WRITE_REG(hw, E1000_TTQF(filter->index), E1000_TTQF_DISABLE_MASK);
 	E1000_WRITE_REG(hw, E1000_IMIR(filter->index), 0);
 	E1000_WRITE_REG(hw, E1000_IMIREXT(filter->index), 0);
+	rte_free(filter);
 	return 0;
 }
 
@@ -4348,7 +4348,6 @@ igb_delete_5tuple_filter_82576(struct rte_eth_dev *dev,
 
 	filter_info->fivetuple_mask &= ~(1 << filter->index);
 	TAILQ_REMOVE(&filter_info->fivetuple_list, filter, entries);
-	rte_free(filter);
 
 	E1000_WRITE_REG(hw, E1000_FTQF(filter->index),
 			E1000_FTQF_VF_BP | E1000_FTQF_MASK);
@@ -4357,6 +4356,7 @@ igb_delete_5tuple_filter_82576(struct rte_eth_dev *dev,
 	E1000_WRITE_REG(hw, E1000_SPQF(filter->index), 0);
 	E1000_WRITE_REG(hw, E1000_IMIR(filter->index), 0);
 	E1000_WRITE_REG(hw, E1000_IMIREXT(filter->index), 0);
+	rte_free(filter);
 	return 0;
 }
 
-- 
2.45.2

[PATCH v8 10/17] net/cpfl: fix free of nonheap object

[Stephen Hemminger]

With proper annotation, GCC discovers that this driver is
calling rte_free() on an object that was not allocated
(it is part of array in another object).

In function ‘cpfl_flow_js_mr_layout’,
    inlined from ‘cpfl_flow_js_mr_action’ at ../drivers/net/cpfl/cpfl_flow_parser.c:848:9,
    inlined from ‘cpfl_flow_js_mod_rule’ at ../drivers/net/cpfl/cpfl_flow_parser.c:908:9,
    inlined from ‘cpfl_parser_init’ at ../drivers/net/cpfl/cpfl_flow_parser.c:932:8,
    inlined from ‘cpfl_parser_create’ at ../drivers/net/cpfl/cpfl_flow_parser.c:959:8:
../drivers/net/cpfl/cpfl_flow_parser.c:740:9: warning: ‘rte_free’ called on pointer ‘*parser.modifications’ with nonzero offset [28, 15479062120396] [-Wfree-nonheap-object]
  740 |         rte_free(js_mod->layout);
      |         ^~~~~~~~~~~~~~~~~~~~~~~~

Fixes: 6cc97c9971d7 ("net/cpfl: build action mapping rules from JSON")
Cc: wenjing.qiao@intel.com
Cc: stable@dpdk.org

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
---
 drivers/net/cpfl/cpfl_flow_parser.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/net/cpfl/cpfl_flow_parser.c b/drivers/net/cpfl/cpfl_flow_parser.c
index 011229a470..303e979015 100644
--- a/drivers/net/cpfl/cpfl_flow_parser.c
+++ b/drivers/net/cpfl/cpfl_flow_parser.c
@@ -737,7 +737,6 @@ cpfl_flow_js_mr_layout(json_t *ob_layouts, struct cpfl_flow_js_mr_action_mod *js
 	return 0;
 
 err:
-	rte_free(js_mod->layout);
 	return -EINVAL;
 }
 
-- 
2.45.2

[PATCH v8 12/17] raw/ifpga/base: fix use after free

[Stephen Hemminger]

The TAILQ_FOREACH() macro would refer to info after it
had been freed. Fix by introducing TAILQ_FOREACH_SAFE here.

Fixes: 4a19f89104f8 ("raw/ifpga/base: support multiple cards")
Cc: stable@dpdk.org

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
---
 drivers/raw/ifpga/base/opae_intel_max10.c | 11 +++++++++--
 1 file changed, 9 insertions(+), 2 deletions(-)

diff --git a/drivers/raw/ifpga/base/opae_intel_max10.c b/drivers/raw/ifpga/base/opae_intel_max10.c
index dd97a5f9fd..d5a9ceb6e3 100644
--- a/drivers/raw/ifpga/base/opae_intel_max10.c
+++ b/drivers/raw/ifpga/base/opae_intel_max10.c
@@ -6,6 +6,13 @@
 #include <libfdt.h>
 #include "opae_osdep.h"
 
+#ifndef TAILQ_FOREACH_SAFE
+#define TAILQ_FOREACH_SAFE(var, head, field, tvar) \
+	for ((var) = TAILQ_FIRST((head)); \
+		(var) && ((tvar) = TAILQ_NEXT((var), field), 1); \
+	(var) = (tvar))
+#endif
+
 int max10_sys_read(struct intel_max10_device *dev,
 	unsigned int offset, unsigned int *val)
 {
@@ -746,9 +753,9 @@ static int fdt_get_named_reg(const void *fdt, int node, const char *name,
 
 static void max10_sensor_uinit(struct intel_max10_device *dev)
 {
-	struct opae_sensor_info *info;
+	struct opae_sensor_info *info, *next;
 
-	TAILQ_FOREACH(info, &dev->opae_sensor_list, node) {
+	TAILQ_FOREACH_SAFE(info, &dev->opae_sensor_list, node, next) {
 		TAILQ_REMOVE(&dev->opae_sensor_list, info, node);
 		opae_free(info);
 	}
-- 
2.45.2

[PATCH v8 14/17] drivers/ifpga: fix free function mismatch

[Stephen Hemminger]

The raw ifpga driver redefines malloc to be opae_malloc
and free to be opae_free; which is a bad idea.

This leads to case where interrupt efd array is allocated
with calloc() and then passed to rte_free. The workaround
is to allocate the array with rte_calloc() instead.

Fixes: d61138d4f0e2 ("drivers: remove direct access to interrupt handle")
Cc: hkalra@marvell.com
Cc: stable@dpdk.org

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
---
 drivers/raw/ifpga/ifpga_rawdev.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/raw/ifpga/ifpga_rawdev.c b/drivers/raw/ifpga/ifpga_rawdev.c
index 113a22b0a7..5b9b596435 100644
--- a/drivers/raw/ifpga/ifpga_rawdev.c
+++ b/drivers/raw/ifpga/ifpga_rawdev.c
@@ -1499,7 +1499,7 @@ ifpga_register_msix_irq(struct ifpga_rawdev *dev, int port_id,
 
 		nb_intr = rte_intr_nb_intr_get(*intr_handle);
 
-		intr_efds = calloc(nb_intr, sizeof(int));
+		intr_efds = rte_calloc("ifpga_efds", nb_intr, sizeof(int), 0);
 		if (!intr_efds)
 			return -ENOMEM;
 
@@ -1508,7 +1508,7 @@ ifpga_register_msix_irq(struct ifpga_rawdev *dev, int port_id,
 
 		ret = opae_acc_set_irq(acc, vec_start, count, intr_efds);
 		if (ret) {
-			free(intr_efds);
+			rte_free(intr_efds);
 			return -EINVAL;
 		}
 	}
@@ -1517,13 +1517,13 @@ ifpga_register_msix_irq(struct ifpga_rawdev *dev, int port_id,
 	ret = rte_intr_callback_register(*intr_handle,
 			handler, (void *)arg);
 	if (ret) {
-		free(intr_efds);
+		rte_free(intr_efds);
 		return -EINVAL;
 	}
 
 	IFPGA_RAWDEV_PMD_INFO("success register %s interrupt", name);
 
-	free(intr_efds);
+	rte_free(intr_efds);
 	return 0;
 }
 
-- 
2.45.2

[PATCH v8 15/17] baseband/la12xx: prevent use after free

[Stephen Hemminger]

It is possible that the info pointer (hp) could get freed twice.
Fix by nulling after free.

In function 'setup_la12xx_dev',
inlined from 'la12xx_bbdev_create' at ../drivers/baseband/la12xx/bbdev_la12xx.c:1029:8,
inlined from 'la12xx_bbdev_probe' at ../drivers/baseband/la12xx/bbdev_la12xx.c:1075:9:
../drivers/baseband/la12xx/bbdev_la12xx.c:901:9: error: pointer 'hp_info' may be used after 'rte_free' [-Werror=use-after-free]
901 |         rte_free(hp);
|         ^~~~~~~~~~~~
../drivers/baseband/la12xx/bbdev_la12xx.c:791:17: note: call to 'rte_free' here
791 |                 rte_free(hp);
|                 ^~~~~~~~~~~~

Fixes: 24d0ba22546e ("baseband/la12xx: add queue and modem config")
Cc: stable@dpdk.org
Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
Reviewed-by: Hemant Agrawal <hemant.agrawal@nxp.com>
---
 drivers/baseband/la12xx/bbdev_la12xx.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/baseband/la12xx/bbdev_la12xx.c b/drivers/baseband/la12xx/bbdev_la12xx.c
index af4b4f1e9a..2432cdf884 100644
--- a/drivers/baseband/la12xx/bbdev_la12xx.c
+++ b/drivers/baseband/la12xx/bbdev_la12xx.c
@@ -789,6 +789,7 @@ setup_la12xx_dev(struct rte_bbdev *dev)
 		ipc_priv->hugepg_start.size = hp->len;
 
 		rte_free(hp);
+		hp = NULL;
 	}
 
 	dev_ipc = open_ipc_dev(priv->modem_id);
-- 
2.45.2

[PATCH v9 02/17] cryptodev/bcmfs: fix mis-matched free

[Stephen Hemminger]

The device structure is allocated with rte_malloc() and
then incorrectly freed with free(). This will lead to
corrupt malloc pool.

Bugzilla ID: 1552
Fixes: c8e79da7c676 ("crypto/bcmfs: introduce BCMFS driver")
Cc: stable@dpdk.org

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
Acked-by: Ajit Khaparde <ajit.khaparde@broadcom.com>
---
 drivers/crypto/bcmfs/bcmfs_device.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/crypto/bcmfs/bcmfs_device.c b/drivers/crypto/bcmfs/bcmfs_device.c
index ada7ba342c..46522970d5 100644
--- a/drivers/crypto/bcmfs/bcmfs_device.c
+++ b/drivers/crypto/bcmfs/bcmfs_device.c
@@ -139,7 +139,7 @@ fsdev_allocate_one_dev(struct rte_vdev_device *vdev,
 	return fsdev;
 
 cleanup:
-	free(fsdev);
+	rte_free(fsdev);
 
 	return NULL;
 }
@@ -163,7 +163,7 @@ fsdev_release(struct bcmfs_device *fsdev)
 		return;
 
 	TAILQ_REMOVE(&fsdev_list, fsdev, next);
-	free(fsdev);
+	rte_free(fsdev);
 }
 
 static int
-- 
2.45.2

[PATCH v9 03/17] dma/ixd: fix incorrect free function in cleanup

[Stephen Hemminger]

The data structure is allocated with rte_malloc and incorrectly
freed in cleanup logic using free.

Bugzilla ID: 1549
Fixes: 9449330a8458 ("dma/idxd: create dmadev instances on PCI probe")
Cc: kevin.laatz@intel.com
Cc: stable@dpdk.org

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
Reviewed-by: Bruce Richardson <bruce.richardson@intel.com>
---
 drivers/dma/idxd/idxd_pci.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/dma/idxd/idxd_pci.c b/drivers/dma/idxd/idxd_pci.c
index 60ac219559..6ed03e96da 100644
--- a/drivers/dma/idxd/idxd_pci.c
+++ b/drivers/dma/idxd/idxd_pci.c
@@ -301,7 +301,7 @@ init_pci_device(struct rte_pci_device *dev, struct idxd_dmadev *idxd,
 	return nb_wqs;
 
 err:
-	free(pci);
+	rte_free(pci);
 	return err_code;
 }
 
-- 
2.45.2

[PATCH v9 04/17] event/cnxk: fix free of non-heap in cleanup code

[Stephen Hemminger]

The code to cleanup in case of error would derefence null pointer
then pass that result to rte_free.

Fixes: 97a05c1fe634 ("event/cnxk: add port config")
Cc: sthotton@marvell.com
Cc: stable@dpdk.org

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
---
 drivers/event/cnxk/cnxk_eventdev.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/event/cnxk/cnxk_eventdev.c b/drivers/event/cnxk/cnxk_eventdev.c
index 4b2d6bffa6..8cc1adef11 100644
--- a/drivers/event/cnxk/cnxk_eventdev.c
+++ b/drivers/event/cnxk/cnxk_eventdev.c
@@ -121,8 +121,8 @@ cnxk_setup_event_ports(const struct rte_eventdev *event_dev,
 	return 0;
 hws_fini:
 	for (i = i - 1; i >= 0; i--) {
-		event_dev->data->ports[i] = NULL;
 		rte_free(cnxk_sso_hws_get_cookie(event_dev->data->ports[i]));
+		event_dev->data->ports[i] = NULL;
 	}
 	return -ENOMEM;
 }
-- 
2.45.2

RE: [EXTERNAL] [PATCH v9 04/17] event/cnxk: fix free of non-heap in cleanup code

[Pavan Nikhilesh Bhagavatula]

> The code to cleanup in case of error would derefence null pointer
> then pass that result to rte_free.
> 
> Fixes: 97a05c1fe634 ("event/cnxk: add port config")
> Cc: sthotton@marvell.com
> Cc: stable@dpdk.org
> 
> Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>

Thanks Stephen,

Acked-by: Pavan Nikhilesh <pbhagavatula@marvell.com>

[PATCH v9 05/17] examples/vhost: fix free function mismatch

[Stephen Hemminger]

The pointer bdev is allocated with rte_zmalloc() and then
incorrectly freed with free() which will lead pool corruption.

Bugzilla ID: 1553
Fixes: c19beb3f38cd ("examples/vhost_blk: introduce vhost storage sample")
Cc: stable@dpdk.org

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
Acked-by: Chengwen Feng <fengchengwen@huawei.com>
---
 examples/vhost_blk/vhost_blk.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/examples/vhost_blk/vhost_blk.c b/examples/vhost_blk/vhost_blk.c
index 03f1ac9c3f..9c9e326949 100644
--- a/examples/vhost_blk/vhost_blk.c
+++ b/examples/vhost_blk/vhost_blk.c
@@ -776,7 +776,7 @@ vhost_blk_bdev_construct(const char *bdev_name,
 	bdev->data = rte_zmalloc(NULL, blk_cnt * blk_size, 0);
 	if (!bdev->data) {
 		fprintf(stderr, "No enough reserved huge memory for disk\n");
-		free(bdev);
+		rte_free(bdev);
 		return NULL;
 	}
 
-- 
2.45.2

Re: [PATCH v9 05/17] examples/vhost: fix free function mismatch

[Chenbo Xia]

> On Oct 9, 2024, at 00:47, Stephen Hemminger <stephen@networkplumber.org> wrote:
> 
> External email: Use caution opening links or attachments
> 
> 
> The pointer bdev is allocated with rte_zmalloc() and then
> incorrectly freed with free() which will lead pool corruption.
> 
> Bugzilla ID: 1553
> Fixes: c19beb3f38cd ("examples/vhost_blk: introduce vhost storage sample")
> Cc: stable@dpdk.org
> 
> Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
> Acked-by: Chengwen Feng <fengchengwen@huawei.com>
> ---
> examples/vhost_blk/vhost_blk.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/examples/vhost_blk/vhost_blk.c b/examples/vhost_blk/vhost_blk.c
> index 03f1ac9c3f..9c9e326949 100644
> --- a/examples/vhost_blk/vhost_blk.c
> +++ b/examples/vhost_blk/vhost_blk.c
> @@ -776,7 +776,7 @@ vhost_blk_bdev_construct(const char *bdev_name,
>        bdev->data = rte_zmalloc(NULL, blk_cnt * blk_size, 0);
>        if (!bdev->data) {
>                fprintf(stderr, "No enough reserved huge memory for disk\n");
> -               free(bdev);
> +               rte_free(bdev);
>                return NULL;
>        }
> 
> --
> 2.45.2
> 

Reviewed-by: Chenbo Xia <chenbox@nvidia.com>

[PATCH v9 06/17] net/cnxk: fix use-after-free

[Stephen Hemminger]

The driver would refer to the mempool object after it was freed.

Bugzilla ID: 1554
Fixes: 7ea187184a51 ("common/cnxk: support 1-N pool-aura per NIX LF")
Cc: rbhansali@marvell.com
Cc: stable@dpdk.org

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
---
 drivers/net/cnxk/cnxk_ethdev_sec.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/cnxk/cnxk_ethdev_sec.c b/drivers/net/cnxk/cnxk_ethdev_sec.c
index 6f5319e534..e428d2115d 100644
--- a/drivers/net/cnxk/cnxk_ethdev_sec.c
+++ b/drivers/net/cnxk/cnxk_ethdev_sec.c
@@ -136,8 +136,8 @@ cnxk_nix_inl_custom_meta_pool_cb(uintptr_t pmpool, uintptr_t *mpool, const char
 			return -EINVAL;
 		}
 
-		rte_mempool_free(hp);
 		plt_free(hp->pool_config);
+		rte_mempool_free(hp);
 
 		*aura_handle = 0;
 		*mpool = 0;
-- 
2.45.2

[PATCH v9 07/17] bpf: fix free mismatch if convert fails

[Stephen Hemminger]

If conversion of cBF to eBPF fails then an object allocated with
rte_malloc() would be passed to free().

[908/3201] Compiling C object lib/librte_bpf.a.p/bpf_bpf_convert.c.o
../lib/bpf/bpf_convert.c: In function ‘rte_bpf_convert’:
../lib/bpf/bpf_convert.c:559:17: warning: ‘free’ called on pointer returned from a mismatched allocation function [-Wmismatched-dealloc]
  559 |                 free(prm);
      |                 ^~~~~~~~~
../lib/bpf/bpf_convert.c:545:15: note: returned from ‘rte_zmalloc’
  545 |         prm = rte_zmalloc("bpf_filter",
      |               ^~~~~~~~~~~~~~~~~~~~~~~~~
  546 |                           sizeof(*prm) + ebpf_len * sizeof(*ebpf), 0);
      |                           ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Fixes: 2eccf6afbea9 ("bpf: add function to convert classic BPF to DPDK BPF")
Cc: stable@dpdk.org
Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
---
 lib/bpf/bpf_convert.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/bpf/bpf_convert.c b/lib/bpf/bpf_convert.c
index d7ff2b4325..e7e298c9cb 100644
--- a/lib/bpf/bpf_convert.c
+++ b/lib/bpf/bpf_convert.c
@@ -556,7 +556,7 @@ rte_bpf_convert(const struct bpf_program *prog)
 	ret = bpf_convert_filter(prog->bf_insns, prog->bf_len, ebpf, &ebpf_len);
 	if (ret < 0) {
 		RTE_BPF_LOG_LINE(ERR, "%s: cannot convert cBPF to eBPF", __func__);
-		free(prm);
+		rte_free(prm);
 		rte_errno = -ret;
 		return NULL;
 	}
-- 
2.45.2

[PATCH v9 08/17] net/e1000: fix use-after-free

[Stephen Hemminger]

The driver cleanup code was freeing the filter object
then dereferencing it.

Bugzilla ID: 1550
Fixes: 6a4d050e2855 ("net/igb: flush all the filter")
Cc: stable@dpdk.org

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
---
 drivers/net/e1000/igb_ethdev.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/net/e1000/igb_ethdev.c b/drivers/net/e1000/igb_ethdev.c
index 1e0a483d4a..d3a9181874 100644
--- a/drivers/net/e1000/igb_ethdev.c
+++ b/drivers/net/e1000/igb_ethdev.c
@@ -3907,11 +3907,11 @@ igb_delete_2tuple_filter(struct rte_eth_dev *dev,
 
 	filter_info->twotuple_mask &= ~(1 << filter->index);
 	TAILQ_REMOVE(&filter_info->twotuple_list, filter, entries);
-	rte_free(filter);
 
 	E1000_WRITE_REG(hw, E1000_TTQF(filter->index), E1000_TTQF_DISABLE_MASK);
 	E1000_WRITE_REG(hw, E1000_IMIR(filter->index), 0);
 	E1000_WRITE_REG(hw, E1000_IMIREXT(filter->index), 0);
+	rte_free(filter);
 	return 0;
 }
 
@@ -4348,7 +4348,6 @@ igb_delete_5tuple_filter_82576(struct rte_eth_dev *dev,
 
 	filter_info->fivetuple_mask &= ~(1 << filter->index);
 	TAILQ_REMOVE(&filter_info->fivetuple_list, filter, entries);
-	rte_free(filter);
 
 	E1000_WRITE_REG(hw, E1000_FTQF(filter->index),
 			E1000_FTQF_VF_BP | E1000_FTQF_MASK);
@@ -4357,6 +4356,7 @@ igb_delete_5tuple_filter_82576(struct rte_eth_dev *dev,
 	E1000_WRITE_REG(hw, E1000_SPQF(filter->index), 0);
 	E1000_WRITE_REG(hw, E1000_IMIR(filter->index), 0);
 	E1000_WRITE_REG(hw, E1000_IMIREXT(filter->index), 0);
+	rte_free(filter);
 	return 0;
 }
 
-- 
2.45.2

[PATCH v9 10/17] net/cpfl: fix free of nonheap object

[Stephen Hemminger]

With proper annotation, GCC discovers that this driver is
calling rte_free() on an object that was not allocated
(it is part of array in another object).

In function ‘cpfl_flow_js_mr_layout’,
    inlined from ‘cpfl_flow_js_mr_action’ at ../drivers/net/cpfl/cpfl_flow_parser.c:848:9,
    inlined from ‘cpfl_flow_js_mod_rule’ at ../drivers/net/cpfl/cpfl_flow_parser.c:908:9,
    inlined from ‘cpfl_parser_init’ at ../drivers/net/cpfl/cpfl_flow_parser.c:932:8,
    inlined from ‘cpfl_parser_create’ at ../drivers/net/cpfl/cpfl_flow_parser.c:959:8:
../drivers/net/cpfl/cpfl_flow_parser.c:740:9: warning: ‘rte_free’ called on pointer ‘*parser.modifications’ with nonzero offset [28, 15479062120396] [-Wfree-nonheap-object]
  740 |         rte_free(js_mod->layout);
      |         ^~~~~~~~~~~~~~~~~~~~~~~~

Fixes: 6cc97c9971d7 ("net/cpfl: build action mapping rules from JSON")
Cc: wenjing.qiao@intel.com
Cc: stable@dpdk.org

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
---
 drivers/net/cpfl/cpfl_flow_parser.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/net/cpfl/cpfl_flow_parser.c b/drivers/net/cpfl/cpfl_flow_parser.c
index 011229a470..303e979015 100644
--- a/drivers/net/cpfl/cpfl_flow_parser.c
+++ b/drivers/net/cpfl/cpfl_flow_parser.c
@@ -737,7 +737,6 @@ cpfl_flow_js_mr_layout(json_t *ob_layouts, struct cpfl_flow_js_mr_action_mod *js
 	return 0;
 
 err:
-	rte_free(js_mod->layout);
 	return -EINVAL;
 }
 
-- 
2.45.2

[PATCH v9 12/17] raw/ifpga/base: fix use after free

[Stephen Hemminger]

The TAILQ_FOREACH() macro would refer to info after it
had been freed. Fix by introducing TAILQ_FOREACH_SAFE here.

Fixes: 4a19f89104f8 ("raw/ifpga/base: support multiple cards")
Cc: stable@dpdk.org

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
---
 drivers/raw/ifpga/base/opae_intel_max10.c | 11 +++++++++--
 1 file changed, 9 insertions(+), 2 deletions(-)

diff --git a/drivers/raw/ifpga/base/opae_intel_max10.c b/drivers/raw/ifpga/base/opae_intel_max10.c
index dd97a5f9fd..d5a9ceb6e3 100644
--- a/drivers/raw/ifpga/base/opae_intel_max10.c
+++ b/drivers/raw/ifpga/base/opae_intel_max10.c
@@ -6,6 +6,13 @@
 #include <libfdt.h>
 #include "opae_osdep.h"
 
+#ifndef TAILQ_FOREACH_SAFE
+#define TAILQ_FOREACH_SAFE(var, head, field, tvar) \
+	for ((var) = TAILQ_FIRST((head)); \
+		(var) && ((tvar) = TAILQ_NEXT((var), field), 1); \
+	(var) = (tvar))
+#endif
+
 int max10_sys_read(struct intel_max10_device *dev,
 	unsigned int offset, unsigned int *val)
 {
@@ -746,9 +753,9 @@ static int fdt_get_named_reg(const void *fdt, int node, const char *name,
 
 static void max10_sensor_uinit(struct intel_max10_device *dev)
 {
-	struct opae_sensor_info *info;
+	struct opae_sensor_info *info, *next;
 
-	TAILQ_FOREACH(info, &dev->opae_sensor_list, node) {
+	TAILQ_FOREACH_SAFE(info, &dev->opae_sensor_list, node, next) {
 		TAILQ_REMOVE(&dev->opae_sensor_list, info, node);
 		opae_free(info);
 	}
-- 
2.45.2

[PATCH v9 14/17] drivers/ifpga: fix free function mismatch

[Stephen Hemminger]

The raw ifpga driver redefines malloc to be opae_malloc
and free to be opae_free; which is a bad idea.

This leads to case where interrupt efd array is allocated
with calloc() and then passed to rte_free. The workaround
is to allocate the array with rte_calloc() instead.

Fixes: d61138d4f0e2 ("drivers: remove direct access to interrupt handle")
Cc: hkalra@marvell.com
Cc: stable@dpdk.org

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
---
 drivers/raw/ifpga/ifpga_rawdev.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/raw/ifpga/ifpga_rawdev.c b/drivers/raw/ifpga/ifpga_rawdev.c
index 113a22b0a7..5b9b596435 100644
--- a/drivers/raw/ifpga/ifpga_rawdev.c
+++ b/drivers/raw/ifpga/ifpga_rawdev.c
@@ -1499,7 +1499,7 @@ ifpga_register_msix_irq(struct ifpga_rawdev *dev, int port_id,
 
 		nb_intr = rte_intr_nb_intr_get(*intr_handle);
 
-		intr_efds = calloc(nb_intr, sizeof(int));
+		intr_efds = rte_calloc("ifpga_efds", nb_intr, sizeof(int), 0);
 		if (!intr_efds)
 			return -ENOMEM;
 
@@ -1508,7 +1508,7 @@ ifpga_register_msix_irq(struct ifpga_rawdev *dev, int port_id,
 
 		ret = opae_acc_set_irq(acc, vec_start, count, intr_efds);
 		if (ret) {
-			free(intr_efds);
+			rte_free(intr_efds);
 			return -EINVAL;
 		}
 	}
@@ -1517,13 +1517,13 @@ ifpga_register_msix_irq(struct ifpga_rawdev *dev, int port_id,
 	ret = rte_intr_callback_register(*intr_handle,
 			handler, (void *)arg);
 	if (ret) {
-		free(intr_efds);
+		rte_free(intr_efds);
 		return -EINVAL;
 	}
 
 	IFPGA_RAWDEV_PMD_INFO("success register %s interrupt", name);
 
-	free(intr_efds);
+	rte_free(intr_efds);
 	return 0;
 }
 
-- 
2.45.2

[PATCH v9 15/17] baseband/la12xx: prevent use after free

[Stephen Hemminger]

It is possible that the info pointer (hp) could get freed twice.
Fix by nulling after free.

In function 'setup_la12xx_dev',
inlined from 'la12xx_bbdev_create' at ../drivers/baseband/la12xx/bbdev_la12xx.c:1029:8,
inlined from 'la12xx_bbdev_probe' at ../drivers/baseband/la12xx/bbdev_la12xx.c:1075:9:
../drivers/baseband/la12xx/bbdev_la12xx.c:901:9: error: pointer 'hp_info' may be used after 'rte_free' [-Werror=use-after-free]
901 |         rte_free(hp);
|         ^~~~~~~~~~~~
../drivers/baseband/la12xx/bbdev_la12xx.c:791:17: note: call to 'rte_free' here
791 |                 rte_free(hp);
|                 ^~~~~~~~~~~~

Fixes: 24d0ba22546e ("baseband/la12xx: add queue and modem config")
Cc: stable@dpdk.org
Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
Reviewed-by: Hemant Agrawal <hemant.agrawal@nxp.com>
---
 drivers/baseband/la12xx/bbdev_la12xx.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/baseband/la12xx/bbdev_la12xx.c b/drivers/baseband/la12xx/bbdev_la12xx.c
index af4b4f1e9a..2432cdf884 100644
--- a/drivers/baseband/la12xx/bbdev_la12xx.c
+++ b/drivers/baseband/la12xx/bbdev_la12xx.c
@@ -789,6 +789,7 @@ setup_la12xx_dev(struct rte_bbdev *dev)
 		ipc_priv->hugepg_start.size = hp->len;
 
 		rte_free(hp);
+		hp = NULL;
 	}
 
 	dev_ipc = open_ipc_dev(priv->modem_id);
-- 
2.45.2