* [dpdk-dev] [PATCH] net/ixgbe: fix using heap pointer after free
@ 2021-07-09 2:30 dapengx.yu
2021-07-09 2:49 ` Wang, Haiyue
2021-07-09 3:14 ` [dpdk-dev] [PATCH v2] " dapengx.yu
0 siblings, 2 replies; 5+ messages in thread
From: dapengx.yu @ 2021-07-09 2:30 UTC (permalink / raw)
To: Haiyue Wang; +Cc: dev, Dapeng Yu, stable
From: Dapeng Yu <dapengx.yu@intel.com>
The original code use a heap pointer after it is freed.
This patch fix it.
Fixes: a14de8b498d1 ("net/ixgbe: destroy consistent filter")
Cc: stable@dpdk.org
Signed-off-by: Dapeng Yu <dapengx.yu@intel.com>
---
drivers/net/ixgbe/ixgbe_flow.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/drivers/net/ixgbe/ixgbe_flow.c b/drivers/net/ixgbe/ixgbe_flow.c
index 0b10e91a9b..4db5ef4b2b 100644
--- a/drivers/net/ixgbe/ixgbe_flow.c
+++ b/drivers/net/ixgbe/ixgbe_flow.c
@@ -32,6 +32,7 @@
#include <rte_hash_crc.h>
#include <rte_flow.h>
#include <rte_flow_driver.h>
+#include <rte_tailq.h>
#include "ixgbe_logs.h"
#include "base/ixgbe_api.h"
@@ -3339,6 +3340,7 @@ ixgbe_flow_destroy(struct rte_eth_dev *dev,
struct ixgbe_hw_fdir_info *fdir_info =
IXGBE_DEV_PRIVATE_TO_FDIR_INFO(dev->data->dev_private);
struct ixgbe_rss_conf_ele *rss_filter_ptr;
+ void *tmp;
switch (filter_type) {
case RTE_ETH_FILTER_NTUPLE:
@@ -3432,7 +3434,7 @@ ixgbe_flow_destroy(struct rte_eth_dev *dev,
return ret;
}
- TAILQ_FOREACH(ixgbe_flow_mem_ptr, &ixgbe_flow_list, entries) {
+ TAILQ_FOREACH_SAFE(ixgbe_flow_mem_ptr, &ixgbe_flow_list, entries, tmp) {
if (ixgbe_flow_mem_ptr->flow == pmd_flow) {
TAILQ_REMOVE(&ixgbe_flow_list,
ixgbe_flow_mem_ptr, entries);
--
2.27.0
^ permalink raw reply [flat|nested] 5+ messages in thread* Re: [dpdk-dev] [PATCH] net/ixgbe: fix using heap pointer after free
2021-07-09 2:30 [dpdk-dev] [PATCH] net/ixgbe: fix using heap pointer after free dapengx.yu
@ 2021-07-09 2:49 ` Wang, Haiyue
2021-07-09 3:14 ` [dpdk-dev] [PATCH v2] " dapengx.yu
1 sibling, 0 replies; 5+ messages in thread
From: Wang, Haiyue @ 2021-07-09 2:49 UTC (permalink / raw)
To: Yu, DapengX; +Cc: dev, stable
> -----Original Message-----
> From: Yu, DapengX <dapengx.yu@intel.com>
> Sent: Friday, July 9, 2021 10:30
> To: Wang, Haiyue <haiyue.wang@intel.com>
> Cc: dev@dpdk.org; Yu, DapengX <dapengx.yu@intel.com>; stable@dpdk.org
> Subject: [PATCH] net/ixgbe: fix using heap pointer after free
>
> From: Dapeng Yu <dapengx.yu@intel.com>
>
> The original code use a heap pointer after it is freed.
> This patch fix it.
>
> Fixes: a14de8b498d1 ("net/ixgbe: destroy consistent filter")
> Cc: stable@dpdk.org
>
> Signed-off-by: Dapeng Yu <dapengx.yu@intel.com>
> ---
> drivers/net/ixgbe/ixgbe_flow.c | 4 +++-
> 1 file changed, 3 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/net/ixgbe/ixgbe_flow.c b/drivers/net/ixgbe/ixgbe_flow.c
> index 0b10e91a9b..4db5ef4b2b 100644
> --- a/drivers/net/ixgbe/ixgbe_flow.c
> +++ b/drivers/net/ixgbe/ixgbe_flow.c
> @@ -32,6 +32,7 @@
> #include <rte_hash_crc.h>
> #include <rte_flow.h>
> #include <rte_flow_driver.h>
> +#include <rte_tailq.h>
>
> #include "ixgbe_logs.h"
> #include "base/ixgbe_api.h"
> @@ -3339,6 +3340,7 @@ ixgbe_flow_destroy(struct rte_eth_dev *dev,
> struct ixgbe_hw_fdir_info *fdir_info =
> IXGBE_DEV_PRIVATE_TO_FDIR_INFO(dev->data->dev_private);
> struct ixgbe_rss_conf_ele *rss_filter_ptr;
> + void *tmp;
>
> switch (filter_type) {
> case RTE_ETH_FILTER_NTUPLE:
> @@ -3432,7 +3434,7 @@ ixgbe_flow_destroy(struct rte_eth_dev *dev,
> return ret;
> }
>
> - TAILQ_FOREACH(ixgbe_flow_mem_ptr, &ixgbe_flow_list, entries) {
> + TAILQ_FOREACH_SAFE(ixgbe_flow_mem_ptr, &ixgbe_flow_list, entries, tmp) {
> if (ixgbe_flow_mem_ptr->flow == pmd_flow) {
> TAILQ_REMOVE(&ixgbe_flow_list,
> ixgbe_flow_mem_ptr, entries);
This is "find - free" process, and only one 'pmd_flow' in the list,
so just "break;" is fine.
TAILQ_FOREACH(ixgbe_flow_mem_ptr, &ixgbe_flow_list, entries) {
if (ixgbe_flow_mem_ptr->flow == pmd_flow) {
TAILQ_REMOVE(&ixgbe_flow_list,
ixgbe_flow_mem_ptr, entries);
rte_free(ixgbe_flow_mem_ptr);
break; <------
}
}
> --
> 2.27.0
^ permalink raw reply [flat|nested] 5+ messages in thread* [dpdk-dev] [PATCH v2] net/ixgbe: fix using heap pointer after free
2021-07-09 2:30 [dpdk-dev] [PATCH] net/ixgbe: fix using heap pointer after free dapengx.yu
2021-07-09 2:49 ` Wang, Haiyue
@ 2021-07-09 3:14 ` dapengx.yu
2021-07-09 4:35 ` Wang, Haiyue
1 sibling, 1 reply; 5+ messages in thread
From: dapengx.yu @ 2021-07-09 3:14 UTC (permalink / raw)
To: Haiyue Wang; +Cc: dev, Dapeng Yu, stable
From: Dapeng Yu <dapengx.yu@intel.com>
The original code use a heap pointer after it is freed.
This patch fix it.
Fixes: a14de8b498d1 ("net/ixgbe: destroy consistent filter")
Cc: stable@dpdk.org
Signed-off-by: Dapeng Yu <dapengx.yu@intel.com>
---
V2:
* Simplify the patch according to maintainer's comment:
only one "pmd_flow" in the list, so just "break;" is fine.
---
drivers/net/ixgbe/ixgbe_flow.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/net/ixgbe/ixgbe_flow.c b/drivers/net/ixgbe/ixgbe_flow.c
index 0b10e91a9b..511b612f7f 100644
--- a/drivers/net/ixgbe/ixgbe_flow.c
+++ b/drivers/net/ixgbe/ixgbe_flow.c
@@ -3437,6 +3437,7 @@ ixgbe_flow_destroy(struct rte_eth_dev *dev,
TAILQ_REMOVE(&ixgbe_flow_list,
ixgbe_flow_mem_ptr, entries);
rte_free(ixgbe_flow_mem_ptr);
+ break;
}
}
rte_free(flow);
--
2.27.0
^ permalink raw reply [flat|nested] 5+ messages in thread* Re: [dpdk-dev] [PATCH v2] net/ixgbe: fix using heap pointer after free
2021-07-09 3:14 ` [dpdk-dev] [PATCH v2] " dapengx.yu
@ 2021-07-09 4:35 ` Wang, Haiyue
2021-07-09 7:29 ` Zhang, Qi Z
0 siblings, 1 reply; 5+ messages in thread
From: Wang, Haiyue @ 2021-07-09 4:35 UTC (permalink / raw)
To: Yu, DapengX; +Cc: dev, stable
> -----Original Message-----
> From: Yu, DapengX <dapengx.yu@intel.com>
> Sent: Friday, July 9, 2021 11:15
> To: Wang, Haiyue <haiyue.wang@intel.com>
> Cc: dev@dpdk.org; Yu, DapengX <dapengx.yu@intel.com>; stable@dpdk.org
> Subject: [PATCH v2] net/ixgbe: fix using heap pointer after free
>
> From: Dapeng Yu <dapengx.yu@intel.com>
>
> The original code use a heap pointer after it is freed.
> This patch fix it.
>
> Fixes: a14de8b498d1 ("net/ixgbe: destroy consistent filter")
> Cc: stable@dpdk.org
>
> Signed-off-by: Dapeng Yu <dapengx.yu@intel.com>
> ---
> V2:
> * Simplify the patch according to maintainer's comment:
> only one "pmd_flow" in the list, so just "break;" is fine.
> ---
> drivers/net/ixgbe/ixgbe_flow.c | 1 +
> 1 file changed, 1 insertion(+)
>
Good catch, thanks!
Reviewed-by: Haiyue Wang <haiyue.wang@intel.com>
> --
> 2.27.0
^ permalink raw reply [flat|nested] 5+ messages in thread* Re: [dpdk-dev] [PATCH v2] net/ixgbe: fix using heap pointer after free
2021-07-09 4:35 ` Wang, Haiyue
@ 2021-07-09 7:29 ` Zhang, Qi Z
0 siblings, 0 replies; 5+ messages in thread
From: Zhang, Qi Z @ 2021-07-09 7:29 UTC (permalink / raw)
To: Wang, Haiyue, Yu, DapengX; +Cc: dev, stable
> -----Original Message-----
> From: dev <dev-bounces@dpdk.org> On Behalf Of Wang, Haiyue
> Sent: Friday, July 9, 2021 12:35 PM
> To: Yu, DapengX <dapengx.yu@intel.com>
> Cc: dev@dpdk.org; stable@dpdk.org
> Subject: Re: [dpdk-dev] [PATCH v2] net/ixgbe: fix using heap pointer after free
>
> > -----Original Message-----
> > From: Yu, DapengX <dapengx.yu@intel.com>
> > Sent: Friday, July 9, 2021 11:15
> > To: Wang, Haiyue <haiyue.wang@intel.com>
> > Cc: dev@dpdk.org; Yu, DapengX <dapengx.yu@intel.com>; stable@dpdk.org
> > Subject: [PATCH v2] net/ixgbe: fix using heap pointer after free
> >
> > From: Dapeng Yu <dapengx.yu@intel.com>
> >
> > The original code use a heap pointer after it is freed.
> > This patch fix it.
> >
> > Fixes: a14de8b498d1 ("net/ixgbe: destroy consistent filter")
> > Cc: stable@dpdk.org
> >
> > Signed-off-by: Dapeng Yu <dapengx.yu@intel.com>
> > ---
> > V2:
> > * Simplify the patch according to maintainer's comment:
> > only one "pmd_flow" in the list, so just "break;" is fine.
> > ---
> > drivers/net/ixgbe/ixgbe_flow.c | 1 +
> > 1 file changed, 1 insertion(+)
> >
>
> Good catch, thanks!
>
> Reviewed-by: Haiyue Wang <haiyue.wang@intel.com>
Applied to dpdk-next-net-intel.
Thanks
Qi
>
>
> > --
> > 2.27.0
^ permalink raw reply [flat|nested] 5+ messages in thread
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2021-07-09 2:30 [dpdk-dev] [PATCH] net/ixgbe: fix using heap pointer after free dapengx.yu
2021-07-09 2:49 ` Wang, Haiyue
2021-07-09 3:14 ` [dpdk-dev] [PATCH v2] " dapengx.yu
2021-07-09 4:35 ` Wang, Haiyue
2021-07-09 7:29 ` Zhang, Qi Z
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