Commit 6865d1e8 authored Sep 30, 2013 by Mathias Krause Committed by David S. Miller Oct 02, 2013

unix_diag: fix info leak



When filling the netlink message we miss to wipe the pad field,
therefore leak one byte of heap memory to userland. Fix this by
setting pad to 0.

Signed-off-by: Mathias Krause <minipli@googlemail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

parent d022af27

net/unix/diag.c

+1 −0

Original line number	Diff line number	Diff line
		@@ -124,6 +124,7 @@ static int sk_diag_fill(struct sock sk, struct sk_buff skb, struct unix_diag_r
		rep->udiag_family = AF_UNIX;
		rep->udiag_type = sk->sk_type;
		rep->udiag_state = sk->sk_state;
		rep->pad = 0;
		rep->udiag_ino = sk_ino;
		sock_diag_save_cookie(sk, rep->udiag_cookie);