From 967dcfb168c8e8d79df4e5855b27cd66b68cc0f2 Mon Sep 17 00:00:00 2001
From: Michal Krawczyk <mk@semihalf.com>
Date: Tue, 11 May 2021 08:45:47 +0200
Subject: [PATCH] net/ena: fix crash with unsupported device argument

[ upstream commit 9f220a959d4d7208491efea8ca8e0c4a96b98f0e ]

As the documentation of rte_kvargs_parse() states, the valid_keys
argument must be NULL terminated. Lack of this feature may cause
segmentation fault if the passed devarg will be different then the
supported value.

Fixes: 8a7a73f26cc9 ("net/ena: support large LLQ headers")

Signed-off-by: Michal Krawczyk <mk@semihalf.com>
Reviewed-by: Igor Chauskin <igorch@amazon.com>
Reviewed-by: Shay Agroskin <shayagr@amazon.com>
Acked-by: Ferruh Yigit <ferruh.yigit@intel.com>
---
 drivers/net/ena/ena_ethdev.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/net/ena/ena_ethdev.c b/drivers/net/ena/ena_ethdev.c
index e7547af144c..46ef021072d 100644
--- a/drivers/net/ena/ena_ethdev.c
+++ b/drivers/net/ena/ena_ethdev.c
@@ -2876,6 +2876,7 @@ static int ena_parse_devargs(struct ena_adapter *adapter,
 {
 	static const char * const allowed_args[] = {
 		ENA_DEVARG_LARGE_LLQ_HDR,
+		NULL,
 	};
 	struct rte_kvargs *kvlist;
 	int rc;