From 23320d21b4abc8f52c612768a8508443f77dfcd8 Mon Sep 17 00:00:00 2001
From: Chengwen Feng <fengchengwen@huawei.com>
Date: Thu, 2 Mar 2023 07:50:07 +0000
Subject: cryptodev: fix empty devargs parsing

[ upstream commit 8146454c56636ba8af5263b57e1c4a9f67fd4a39 ]

The rte_kvargs_process() was used to parse KV pairs, it also supports
to parse 'only keys' (e.g. socket_id) type. And the callback function
parameter 'value' is NULL when parsed 'only keys'.

This patch fixes segment fault in rte_cryptodev_pmd_parse_uint_arg()
when parse input args with 'only keys' (e.g. socket_id,
max_nb_queue_pairs).

For a similar reason, this patch fixes
rte_cryptodev_pmd_parse_name_arg().

Fixes: 9e6edea41805 ("cryptodev: add APIs to assist PMD initialisation")
Cc: stable@dpdk.org

Signed-off-by: Chengwen Feng <fengchengwen@huawei.com>
Acked-by: Akhil Goyal <gakhil@marvell.com>
---
 lib/cryptodev/cryptodev_pmd.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/lib/cryptodev/cryptodev_pmd.c b/lib/cryptodev/cryptodev_pmd.c
index 739a0b3f34..9dab1ef7cd 100644
--- a/lib/cryptodev/cryptodev_pmd.c
+++ b/lib/cryptodev/cryptodev_pmd.c
@@ -19,6 +19,9 @@ rte_cryptodev_pmd_parse_name_arg(const char *key __rte_unused,
 	struct rte_cryptodev_pmd_init_params *params = extra_args;
 	int n;
 
+	if (value == NULL || extra_args == NULL)
+		return -EINVAL;
+
 	n = strlcpy(params->name, value, RTE_CRYPTODEV_NAME_MAX_LEN);
 	if (n >= RTE_CRYPTODEV_NAME_MAX_LEN)
 		return -EINVAL;
@@ -35,6 +38,10 @@ rte_cryptodev_pmd_parse_uint_arg(const char *key __rte_unused,
 {
 	int i;
 	char *end;
+
+	if (value == NULL || extra_args == NULL)
+		return -EINVAL;
+
 	errno = 0;
 
 	i = strtol(value, &end, 10);
-- 
2.23.0