[v2,10/44] net/cxgbe: fix segment fault when parse devargs

Message ID 20230320092110.37295-11-fengchengwen@huawei.com (mailing list archive)
State Changes Requested, archived
Delegated to: Thomas Monjalon
Headers
Series fix segment fault when parse args |

Checks

Context Check Description
ci/checkpatch success coding style OK

Commit Message

fengchengwen March 20, 2023, 9:20 a.m. UTC
  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 when parse input args with 'only keys'.

Fixes: cda260a4ac1a ("net/cxgbe: add option to keep outer VLAN tag in QinQ")
Fixes: dd7c9f12762e ("net/cxgbe: separate VF only devargs")
Fixes: 536db938a444 ("net/cxgbe: add devargs to control filtermode and filtermask")
Cc: stable@dpdk.org

Signed-off-by: Chengwen Feng <fengchengwen@huawei.com>
---
 drivers/net/cxgbe/cxgbe_main.c | 3 +++
 1 file changed, 3 insertions(+)
  

Patch

diff --git a/drivers/net/cxgbe/cxgbe_main.c b/drivers/net/cxgbe/cxgbe_main.c
index f8dd833032..2f2acbcf5a 100644
--- a/drivers/net/cxgbe/cxgbe_main.c
+++ b/drivers/net/cxgbe/cxgbe_main.c
@@ -746,6 +746,9 @@  void cxgbe_print_port_info(struct adapter *adap)
 
 static int check_devargs_handler(const char *key, const char *value, void *p)
 {
+	if (value == NULL)
+		return -EINVAL;
+
 	if (!strncmp(key, CXGBE_DEVARG_CMN_KEEP_OVLAN, strlen(key)) ||
 	    !strncmp(key, CXGBE_DEVARG_CMN_TX_MODE_LATENCY, strlen(key)) ||
 	    !strncmp(key, CXGBE_DEVARG_VF_FORCE_LINK_UP, strlen(key))) {