From: Adam Dybkowski <adamx.dybkowski@intel.com>
To: dev@dpdk.org, fiona.trahe@intel.com, akhil.goyal@nxp.com
Cc: Adam Dybkowski <adamx.dybkowski@intel.com>, stable@dpdk.org
Subject: [dpdk-dev] [PATCH] cryptodev: fix missing device id range checking
Date: Thu, 20 Feb 2020 16:04:15 +0100 [thread overview]
Message-ID: <20200220150415.32091-1-adamx.dybkowski@intel.com> (raw)
This patch adds range-checking of the device id passed from
the user app code. It prevents out-of-range array accesses
which in some situations resulted in an
application crash (segfault).
Fixes: 3dd4435cf473 ("cryptodev: fix checks related to device id")
Cc: stable@dpdk.org
Signed-off-by: Adam Dybkowski <adamx.dybkowski@intel.com>
---
lib/librte_cryptodev/rte_cryptodev.c | 41 +++++++++++++++++++++++++---
1 file changed, 37 insertions(+), 4 deletions(-)
diff --git a/lib/librte_cryptodev/rte_cryptodev.c b/lib/librte_cryptodev/rte_cryptodev.c
index 6d1d0e9d3..65d61a3ef 100644
--- a/lib/librte_cryptodev/rte_cryptodev.c
+++ b/lib/librte_cryptodev/rte_cryptodev.c
@@ -529,7 +529,8 @@ rte_cryptodev_pmd_get_named_dev(const char *name)
static inline uint8_t
rte_cryptodev_is_valid_device_data(uint8_t dev_id)
{
- if (rte_crypto_devices[dev_id].data == NULL)
+ if (dev_id >= RTE_CRYPTO_MAX_DEVS ||
+ rte_crypto_devices[dev_id].data == NULL)
return 0;
return 1;
@@ -621,8 +622,9 @@ rte_cryptodev_devices_get(const char *driver_name, uint8_t *devices,
void *
rte_cryptodev_get_sec_ctx(uint8_t dev_id)
{
- if (rte_crypto_devices[dev_id].feature_flags &
- RTE_CRYPTODEV_FF_SECURITY)
+ if (dev_id < RTE_CRYPTO_MAX_DEVS &&
+ (rte_crypto_devices[dev_id].feature_flags &
+ RTE_CRYPTODEV_FF_SECURITY))
return rte_crypto_devices[dev_id].security_ctx;
return NULL;
@@ -793,6 +795,11 @@ rte_cryptodev_queue_pair_count(uint8_t dev_id)
{
struct rte_cryptodev *dev;
+ if (!rte_cryptodev_is_valid_device_data(dev_id)) {
+ CDEV_LOG_ERR("Invalid dev_id=%" PRIu8, dev_id);
+ return 0;
+ }
+
dev = &rte_crypto_devices[dev_id];
return dev->data->nb_queue_pairs;
}
@@ -1258,6 +1265,11 @@ rte_cryptodev_sym_session_init(uint8_t dev_id,
uint8_t index;
int ret;
+ if (!rte_cryptodev_pmd_is_valid_dev(dev_id)) {
+ CDEV_LOG_ERR("Invalid dev_id=%" PRIu8, dev_id);
+ return -EINVAL;
+ }
+
dev = rte_cryptodev_pmd_get_dev(dev_id);
if (sess == NULL || xforms == NULL || dev == NULL)
@@ -1297,6 +1309,11 @@ rte_cryptodev_asym_session_init(uint8_t dev_id,
uint8_t index;
int ret;
+ if (!rte_cryptodev_pmd_is_valid_dev(dev_id)) {
+ CDEV_LOG_ERR("Invalid dev_id=%" PRIu8, dev_id);
+ return -EINVAL;
+ }
+
dev = rte_cryptodev_pmd_get_dev(dev_id);
if (sess == NULL || xforms == NULL || dev == NULL)
@@ -1432,6 +1449,11 @@ rte_cryptodev_sym_session_clear(uint8_t dev_id,
struct rte_cryptodev *dev;
uint8_t driver_id;
+ if (!rte_cryptodev_pmd_is_valid_dev(dev_id)) {
+ CDEV_LOG_ERR("Invalid dev_id=%" PRIu8, dev_id);
+ return -EINVAL;
+ }
+
dev = rte_cryptodev_pmd_get_dev(dev_id);
if (dev == NULL || sess == NULL)
@@ -1456,6 +1478,11 @@ rte_cryptodev_asym_session_clear(uint8_t dev_id,
{
struct rte_cryptodev *dev;
+ if (!rte_cryptodev_pmd_is_valid_dev(dev_id)) {
+ CDEV_LOG_ERR("Invalid dev_id=%" PRIu8, dev_id);
+ return -EINVAL;
+ }
+
dev = rte_cryptodev_pmd_get_dev(dev_id);
if (dev == NULL || sess == NULL)
@@ -1789,8 +1816,14 @@ rte_cryptodev_driver_id_get(const char *name)
const char *
rte_cryptodev_name_get(uint8_t dev_id)
{
- struct rte_cryptodev *dev = rte_cryptodev_pmd_get_dev(dev_id);
+ struct rte_cryptodev *dev;
+ if (!rte_cryptodev_is_valid_device_data(dev_id)) {
+ CDEV_LOG_ERR("Invalid dev_id=%" PRIu8, dev_id);
+ return NULL;
+ }
+
+ dev = rte_cryptodev_pmd_get_dev(dev_id);
if (dev == NULL)
return NULL;
--
2.17.1
next reply other threads:[~2020-02-20 15:10 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-02-20 15:04 Adam Dybkowski [this message]
2020-02-20 15:39 ` Trahe, Fiona
2020-03-13 7:19 ` Akhil Goyal
2020-03-25 19:11 ` Akhil Goyal
2020-03-13 6:31 Zhao, XinfengX
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