This is a note to let you know that I've just added the patch titled
net: tipc: fix information leak to userland
to the 2.6.33-longterm tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/longterm/longterm-queue-2.6.33.git;a=summary
The filename of the patch is:
net-tipc-fix-information-leak-to-userland.patch
and it can be found in the queue-2.6.33 subdirectory.
If you, or anyone else, feels it should not be added to the 2.6.33 longterm
tree,
please let <[email protected]> know about it.
>From 88f8a5e3e7defccd3925cabb1ee4d3994e5cdb52 Mon Sep 17 00:00:00 2001
From: Kulikov Vasiliy <[email protected]>
Date: Sun, 31 Oct 2010 07:10:32 +0000
Subject: net: tipc: fix information leak to userland
From: Kulikov Vasiliy <[email protected]>
commit 88f8a5e3e7defccd3925cabb1ee4d3994e5cdb52 upstream.
Structure sockaddr_tipc is copied to userland with padding bytes after
"id" field in union field "name" unitialized. It leads to leaking of
contents of kernel stack memory. We have to initialize them to zero.
Signed-off-by: Vasiliy Kulikov <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
Cc: Moritz Muehlenhoff <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
net/tipc/socket.c | 1 +
1 file changed, 1 insertion(+)
--- a/net/tipc/socket.c
+++ b/net/tipc/socket.c
@@ -395,6 +395,7 @@ static int get_name(struct socket *sock,
struct sockaddr_tipc *addr = (struct sockaddr_tipc *)uaddr;
struct tipc_sock *tsock = tipc_sk(sock->sk);
+ memset(addr, 0, sizeof(*addr));
if (peer) {
if ((sock->state != SS_CONNECTED) &&
((peer != 2) || (sock->state != SS_DISCONNECTING)))
Patches currently in longterm-queue-2.6.33 which might be from
[email protected] are
/home/gregkh/linux/longterm/longterm-queue-2.6.33/queue-2.6.33/sound-oss-midi_synth-check-get_user-return-value.patch
/home/gregkh/linux/longterm/longterm-queue-2.6.33/queue-2.6.33/net-tipc-fix-information-leak-to-userland.patch
/home/gregkh/linux/longterm/longterm-queue-2.6.33/queue-2.6.33/net-ax25-fix-information-leak-to-userland.patch
/home/gregkh/linux/longterm/longterm-queue-2.6.33/queue-2.6.33/net-packet-fix-information-leak-to-userland.patch
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