diff mbox series

[v3,06/19] eal: fix out of bounds access in devargs

Message ID 20250205162448.161161-7-stephen@networkplumber.org (mailing list archive)
State Accepted
Delegated to: Thomas Monjalon
Headers
Series minor fixes from PVS studio bug list |

Checks

Context Check Description
ci/checkpatch success coding style OK

Commit Message

Stephen Hemminger Feb. 5, 2025, 4:23 p.m. UTC 
The code for parsing layers in devargs could reference past
the end of layers[] array on stack.

Link: https://pvs-studio.com/en/blog/posts/cpp/1183/

Fixes: 9a1a9e4a2ddd ("devargs: support path value with global device syntax")
Cc: xuemingl@nvidia.com
Cc: stable@dpdk.org
Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
---
 lib/eal/common/eal_common_devargs.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/lib/eal/common/eal_common_devargs.c b/lib/eal/common/eal_common_devargs.c
index a64805b268..dd857fc839 100644
--- a/lib/eal/common/eal_common_devargs.c
+++ b/lib/eal/common/eal_common_devargs.c
@@ -88,7 +88,7 @@  rte_devargs_layers_parse(struct rte_devargs *devargs,
 	s = devargs->data;
 
 	while (s != NULL) {
-		if (nblayer > RTE_DIM(layers)) {
+		if (nblayer >= RTE_DIM(layers)) {
 			ret = -E2BIG;
 			goto get_out;
 		}