[PATCH] app/graph: fix overrun error (destination buffer too small)
Khadem Ullah
14pwcse1224 at uetpeshawar.edu.pk
Thu Aug 7 13:06:40 CEST 2025
Some memory locations will be written with incorrect values,
possibly corrupting data structures or data integrity.
Size of destination buffer is smaller than the size
argument specified.
Coverity issue: 415430
Fixes: 3850cb06ab9c ('app/graph: add ethdev commands')
Cc: stable at dpdk.org
Signed-off-by: Khadem Ullah <14pwcse1224 at uetpeshawar.edu.pk>
---
app/graph/ethdev.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/app/graph/ethdev.c b/app/graph/ethdev.c
index 2f4cf65c96..f6d4bce9ab 100644
--- a/app/graph/ethdev.c
+++ b/app/graph/ethdev.c
@@ -663,11 +663,12 @@ cmd_ethdev_parsed(void *parsed_result, __rte_unused struct cmdline *cl, void *da
struct cmd_ethdev_result *res = parsed_result;
struct ethdev_config config;
int rc;
-
+ size_t len;
memset(&config, 0, sizeof(struct ethdev_config));
config.rx.n_queues = res->nb_rxq;
config.rx.queue_size = ETHDEV_RX_DESC_DEFAULT;
- memcpy(config.rx.mempool_name, res->mempool, strlen(res->mempool));
+ len = strnlen(res->mempool, sizeof(config.rx.mempool_name));
+ memcpy(config.rx.mempool_name, res->mempool, len);
config.tx.n_queues = res->nb_txq;
config.tx.queue_size = ETHDEV_TX_DESC_DEFAULT;
--
2.43.0
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