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Commit f037590f authored by Eric Dumazet's avatar Eric Dumazet Committed by David S. Miller
Browse files

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: default avatarEric Dumazet <eric.dumazet@gmail.com>
CC: Andy Grover <andy.grover@oracle.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 68d6ac6d

net/rds/recv.c

+1 −1
Original line number Diff line number Diff line
@@ -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);