diff mbox series

[v3,11/22] ethdev: replace strtok with reentrant version

Message ID 20231114110006.91148-12-haijie1@huawei.com (mailing list archive)
State Changes Requested, archived
Delegated to: David Marchand
Headers
Series replace strtok with reentrant version |

Checks

Context Check Description
ci/checkpatch success coding style OK

Commit Message

Jie Hai Nov. 14, 2023, 10:59 a.m. UTC 
  Multiple threads calling the same function may cause condition
race issues, which often leads to abnormal behavior and can cause
more serious vulnerabilities such as abnormal termination, denial
of service, and compromised data integrity.

The strtok() is non-reentrant, it is better to replace it with a
reentrant version.

Fixes: f38f62650f7b ("ethdev: add Rx queue telemetry query")
Fixes: 9e7533aeb80a ("ethdev: add telemetry command for TM level capabilities")
Cc: stable@dpdk.org

Signed-off-by: Jie Hai <haijie1@huawei.com>
Acked-by: Chengwen Feng <fengchengwen@huawei.com>
---
 lib/ethdev/rte_ethdev_telemetry.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

Comments

Andrew Rybchenko Dec. 16, 2023, 10:01 a.m. UTC | #1 
On 11/14/23 13:59, Jie Hai wrote:
> Multiple threads calling the same function may cause condition
> race issues, which often leads to abnormal behavior and can cause
> more serious vulnerabilities such as abnormal termination, denial
> of service, and compromised data integrity.
> 
> The strtok() is non-reentrant, it is better to replace it with a
> reentrant version.
> 
> Fixes: f38f62650f7b ("ethdev: add Rx queue telemetry query")
> Fixes: 9e7533aeb80a ("ethdev: add telemetry command for TM level capabilities")
> Cc: stable@dpdk.org
> 
> Signed-off-by: Jie Hai <haijie1@huawei.com>
> Acked-by: Chengwen Feng <fengchengwen@huawei.com>

Reviewed-by: Andrew Rybchenko <andrew.rybchenko@oktetlabs.ru>
diff mbox series

Patch

diff --git a/lib/ethdev/rte_ethdev_telemetry.c b/lib/ethdev/rte_ethdev_telemetry.c
index b01028ce9b60..6810c54109a5 100644
--- a/lib/ethdev/rte_ethdev_telemetry.c
+++ b/lib/ethdev/rte_ethdev_telemetry.c
@@ -477,6 +477,7 @@  ethdev_parse_queue_params(const char *params, bool is_rx,
 	const char *qid_param;
 	uint16_t nb_queues;
 	char *end_param;
+	char *sp = NULL;
 	uint64_t qid;
 	int ret;
 
@@ -489,7 +490,7 @@  ethdev_parse_queue_params(const char *params, bool is_rx,
 	if (nb_queues == 1 && *end_param == '\0')
 		qid = 0;
 	else {
-		qid_param = strtok(end_param, ",");
+		qid_param = strtok_r(end_param, ",", &sp);
 		if (!qid_param || strlen(qid_param) == 0 || !isdigit(*qid_param))
 			return -EINVAL;
 
@@ -1221,9 +1222,10 @@  static int
 eth_dev_parse_tm_params(char *params, uint32_t *result)
 {
 	const char *splited_param;
+	char *sp = NULL;
 	uint64_t ret;
 
-	splited_param = strtok(params, ",");
+	splited_param = strtok_r(params, ",", &sp);
 	if (!splited_param || strlen(splited_param) == 0 || !isdigit(*splited_param))
 		return -EINVAL;