unix: If we happen to find peer NULL when diag dumping, write zero.

Otherwise we leave uninitialized kernel memory in there.

Reported-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 1 insertions, 2 deletions

diff --git a/net/unix/diag.c b/net/unix/diag.c
index 39e44c98176a..c5bdbcb1c30b 100644
--- a/net/unix/diag.c
+++ b/net/unix/diag.c
@@ -86,8 +86,7 @@ static int sk_diag_dump_icons(struct sock *sk, struct sk_buff *nlskb)
                          */
                         unix_state_lock_nested(req);
                         peer = unix_sk(req)->peer;
-                        if (peer)
-                                buf[i++] = sock_i_ino(peer);
+                        buf[i++] = (peer ? sock_i_ino(peer) : 0);
                         unix_state_unlock(req);
                 }
                 spin_unlock(&sk->sk_receive_queue.lock);