[PATCH] app/graph: fix destination buffer too small

[Mahmoud Maatuq <mahmoudmatook.mm@gmail.com>]

as sizeof(config.rx.mempool_name) is < sizeof(res->mempool), it's safer
to copy min size of them to avoide out of bound memory write.

Coverity issue: 415430
Fixes: 3850cb06ab9c ("app/graph: add ethdev commands")
Cc: skori@marvell.com

Signed-off-by: Mahmoud Maatuq <mahmoudmatook.mm@gmail.com>
---
 app/graph/ethdev.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/app/graph/ethdev.c b/app/graph/ethdev.c
index cfc1b18569..4b6009ee12 100644
--- a/app/graph/ethdev.c
+++ b/app/graph/ethdev.c
@@ -671,7 +671,8 @@ cmd_ethdev_parsed(void *parsed_result, __rte_unused struct cmdline *cl, void *da
 	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));
+	memcpy(config.rx.mempool_name, res->mempool,
+		RTE_MIN(sizeof(config.rx.mempool_name), strlen(res->mempool)));
 
 	config.tx.n_queues = res->nb_txq;
 	config.tx.queue_size = ETHDEV_TX_DESC_DEFAULT;
-- 
2.43.0