RE: [EXTERNAL] [PATCH v2] app/graph: fix destination buffer too small

[Kiran Kumar Kokkilagadda <kirankumark@marvell.com>]

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From: Mahmoud Maatuq <mahmoudmatook.mm@gmail.com>
Sent: Tuesday, June 25, 2024 1:31 AM
To: Sunil Kumar Kori <skori@marvell.com>; Rakesh Kudurumalla <rkudurumalla@marvell.com>; Nithin Kumar Dabilpuram <ndabilpuram@marvell.com>; Jerin Jacob <jerinj@marvell.com>
Cc: dev@dpdk.org; Mahmoud Maatuq <mahmoudmatook.mm@gmail.com>
Subject: [EXTERNAL] [PATCH v2] app/graph: fix destination buffer too small

as sizeof(config. rx. mempool_name) is < sizeof(res->mempool) we should copy at most sizeof(config. rx. mempool_name) and replace memcpy with strlcpy as mempool name is a null terminated string Coverity issue: 415430 Fixes: 3850cb06ab9c ("app/graph: 


as sizeof(config.rx.mempool_name) is < sizeof(res->mempool) we should

copy at most sizeof(config.rx.mempool_name) and replace memcpy with

strlcpy as mempool name is a null terminated string



Coverity issue: 415430

Fixes: 3850cb06ab9c ("app/graph: add ethdev commands")

Cc: skori@marvell.com<mailto:skori@marvell.com>



Signed-off-by: Mahmoud Maatuq <mahmoudmatook.mm@gmail.com<mailto:mahmoudmatook.mm@gmail.com>>

---

v2:

* replaced memcpy with strlcpy

---

 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..e7a02b40a9 100644

--- a/app/graph/ethdev.c

+++ b/app/graph/ethdev.c

@@ -16,6 +16,7 @@



 #include "ethdev_priv.h"

 #include "module_api.h"

+#include "rte_string_fns.h"



 static const char

 cmd_ethdev_mtu_help[] = "ethdev <ethdev_name> mtu <mtu_sz>";

@@ -671,7 +672,7 @@ 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));

+           strlcpy(config.rx.mempool_name, res->mempool, sizeof(config.rx.mempool_name));



Can be changed to strlcpy(config.rx.mempool_name, res->mempool->name, sizeof(config.rx.mempool_name)); ?



              config.tx.n_queues = res->nb_txq;

              config.tx.queue_size = ETHDEV_TX_DESC_DEFAULT;

--

2.43.0



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