diff mbox

net/mlx4_en: dereferencing freed memory

Message ID 20120711063407.GD11812@elgon.mountain
State Accepted, archived
Delegated to: David Miller
Headers show

Commit Message

Dan Carpenter July 11, 2012, 6:34 a.m. UTC 
We dereferenced "mclist" after the kfree().

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>

--
To unsubscribe from this list: send the line "unsubscribe netdev" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html

Comments

David Miller July 17, 2012, 5:58 a.m. UTC | #1 
From: Dan Carpenter <dan.carpenter@oracle.com>
Date: Wed, 11 Jul 2012 09:34:07 +0300

> We dereferenced "mclist" after the kfree().
> 
> Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>

Applied.
--
To unsubscribe from this list: send the line "unsubscribe netdev" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
diff mbox

Patch

diff --git a/drivers/net/ethernet/mellanox/mlx4/en_netdev.c b/drivers/net/ethernet/mellanox/mlx4/en_netdev.c
index 94375a8..4ce5ca8 100644
--- a/drivers/net/ethernet/mellanox/mlx4/en_netdev.c
+++ b/drivers/net/ethernet/mellanox/mlx4/en_netdev.c
@@ -503,9 +503,7 @@  static void mlx4_en_do_set_multicast(struct work_struct *work)
 				/* remove from list */
 				list_del(&mclist->list);
 				kfree(mclist);
-			}
-
-			if (mclist->action == MCLIST_ADD) {
+			} else if (mclist->action == MCLIST_ADD) {
 				/* attach the address */
 				memcpy(&mc_list[10], mclist->addr, ETH_ALEN);
 				/* needed for B0 steering support */