net/i40e: fix negative VEB index

This patch adds check for negative VEB index when parsing VEB list.

Fixes: 79f2248219c0 ("net/i40e: add floating VEB option")
Cc: stable@dpdk.org
Signed-off-by: Chengwen Feng <fengchengwen@huawei.com>
Signed-off-by: Min Hu (Connor) <humin29@huawei.com>
Acked-by: Qi Zhang <qi.z.zhang@intel.com>

diff --git a/drivers/net/i40e/i40e_ethdev.c b/drivers/net/i40e/i40e_ethdev.c
index 66d23d6..d058620 100644 (file)
--- a/drivers/net/i40e/i40e_ethdev.c
+++ b/drivers/net/i40e/i40e_ethdev.c
@@ -854,6 +854,8 @@ floating_veb_list_handler(__rte_unused const char *key,
                idx = strtoul(floating_veb_value, &end, 10);
                if (errno || end == NULL)
                        return -1;
+               if (idx < 0)
+                       return -1;
                while (isblank(*end))
                        end++;
                if (*end == '-') {