lkml.org 
[lkml]   [2011]   [Feb]   [15]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
Date
From
Subject[180/272] net: ax25: fix information leak to userland harder
2.6.37-stable review patch.  If anyone has any objections, please let us know.

------------------

From: Kees Cook <kees.cook@canonical.com>

commit 5b919f833d9d60588d026ad82d17f17e8872c7a9 upstream.

Commit fe10ae53384e48c51996941b7720ee16995cbcb7 adds a memset() to clear
the structure being sent back to userspace, but accidentally used the
wrong size.

Reported-by: Brad Spengler <spender@grsecurity.net>
Signed-off-by: Kees Cook <kees.cook@canonical.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

---
net/ax25/af_ax25.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

--- a/net/ax25/af_ax25.c
+++ b/net/ax25/af_ax25.c
@@ -1392,7 +1392,7 @@ static int ax25_getname(struct socket *s
ax25_cb *ax25;
int err = 0;

- memset(fsa, 0, sizeof(fsa));
+ memset(fsa, 0, sizeof(*fsa));
lock_sock(sk);
ax25 = ax25_sk(sk);




\
 
 \ /
  Last update: 2011-02-16 01:55    [W:0.511 / U:7.916 seconds]
©2003-2018 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site