[ 3.8.y.z extended stable ] Patch "netrom: fix invalid use of sizeof in nr_recvmsg()" has been added to staging queue

[Kamal Mostafa]

This is a note to let you know that I have just added a patch titled

    netrom: fix invalid use of sizeof in nr_recvmsg()

to the linux-3.8.y-queue branch of the 3.8.y.z extended stable tree 
which can be found at:

 http://kernel.ubuntu.com/git?p=ubuntu/linux.git;a=shortlog;h=refs/heads/linux-3.8.y-queue

This patch is scheduled to be released in version 3.8.13.4.

If you, or anyone else, feels it should not be added to this tree, please 
reply to this email.

For more information about the 3.8.y.z tree, see
https://wiki.ubuntu.com/Kernel/Dev/ExtendedStable

Thanks.
-Kamal

------

>From e3dd0d910b3741780b125437ae7be4a994d0cac8 Mon Sep 17 00:00:00 2001
From: Wei Yongjun <yongjun_wei at trendmicro.com.cn>
Date: Tue, 9 Apr 2013 10:07:19 +0800
Subject: netrom: fix invalid use of sizeof in nr_recvmsg()

commit c802d759623acbd6e1ee9fbdabae89159a513913 upstream.

sizeof() when applied to a pointer typed expression gives the size of the
pointer, not that of the pointed data.
Introduced by commit 3ce5ef(netrom: fix info leak via msg_name in nr_recvmsg)

Signed-off-by: Wei Yongjun <yongjun_wei at trendmicro.com.cn>
Signed-off-by: David S. Miller <davem at davemloft.net>
Signed-off-by: Kamal Mostafa <kamal at canonical.com>
---
 net/netrom/af_netrom.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/netrom/af_netrom.c b/net/netrom/af_netrom.c
index 14c106b..f334fbd 100644
--- a/net/netrom/af_netrom.c
+++ b/net/netrom/af_netrom.c
@@ -1177,7 +1177,7 @@ static int nr_recvmsg(struct kiocb *iocb, struct socket *sock,
 	}

 	if (sax != NULL) {
-		memset(sax, 0, sizeof(sax));
+		memset(sax, 0, sizeof(*sax));
 		sax->sax25_family = AF_NETROM;
 		skb_copy_from_linear_data_offset(skb, 7, sax->sax25_call.ax25_call,
 			      AX25_ADDR_LEN);
--
1.8.1.2