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appletalk: fix atalk_getname() leak
author
Eric Dumazet
<eric.dumazet@gmail.com>
Thu, 6 Aug 2009 02:27:43 +0000
(
02:27
+0000)
committer
David S. Miller
<davem@davemloft.net>
Thu, 6 Aug 2009 20:08:45 +0000
(13:08 -0700)
atalk_getname() can leak 8 bytes of kernel memory to user
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
net/appletalk/ddp.c
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diff --git
a/net/appletalk/ddp.c
b/net/appletalk/ddp.c
index
590b839
..
9ef6ff2
100644
(file)
--- a/
net/appletalk/ddp.c
+++ b/
net/appletalk/ddp.c
@@
-1237,6
+1237,7
@@
static int atalk_getname(struct socket *sock, struct sockaddr *uaddr,
return -ENOBUFS;
*uaddr_len = sizeof(struct sockaddr_at);
+ memset(&sat.sat_zero, 0, sizeof(sat.sat_zero));
if (peer) {
if (sk->sk_state != TCP_ESTABLISHED)