rds: fix a leak of kernel memory

struct rds_rdma_notify contains a 32 bits hole on 64bit arches, make sure it is zeroed before copying it to user. Signed-off-by: Eric Dumazet <[email protected]> CC: Andy Grover <[email protected]> Signed-off-by: David S. Miller <[email protected]>
kyagi · Aug 19, 2010 · f037590 · f037590
1 parent 68d6ac6
commit f037590
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/net/rds/recv.c b/net/rds/recv.c
@@ -297,7 +297,7 @@ static int rds_still_queued(struct rds_sock *rs, struct rds_incoming *inc,
 int rds_notify_queue_get(struct rds_sock *rs, struct msghdr *msghdr)
 {
 	struct rds_notifier *notifier;
-	struct rds_rdma_notify cmsg;
+	struct rds_rdma_notify cmsg = { 0 }; /* fill holes with zero */
 	unsigned int count = 0, max_messages = ~0U;
 	unsigned long flags;
 	LIST_HEAD(copy);