Patch "net/appletalk: Fix kernel memory disclosure" has been added to the 3.18-stable tree

Patch "net/appletalk: Fix kernel memory disclosure" has been added to the 3.18-stable tree

[gregkh]

This is a note to let you know that I've just added the patch titled

    net/appletalk: Fix kernel memory disclosure

to the 3.18-stable tree which can be found at:
    http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
     net-appletalk-fix-kernel-memory-disclosure.patch
and it can be found in the queue-3.18 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@vger.kernel.org> know about it.


>From foo@baz Tue Dec  5 18:18:39 CET 2017
From: Vlad Tsyrklevich <vlad@tsyrklevich.net>
Date: Mon, 9 Jan 2017 20:57:48 +0700
Subject: net/appletalk: Fix kernel memory disclosure

From: Vlad Tsyrklevich <vlad@tsyrklevich.net>


[ Upstream commit ce7e40c432ba84da104438f6799d460a4cad41bc ]

ipddp_route structs contain alignment padding so kernel heap memory
is leaked when they are copied to user space in
ipddp_ioctl(SIOCFINDIPDDPRT). Change kmalloc() to kzalloc() to clear
that memory.

Signed-off-by: Vlad Tsyrklevich <vlad@tsyrklevich.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/appletalk/ipddp.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/net/appletalk/ipddp.c
+++ b/drivers/net/appletalk/ipddp.c
@@ -191,7 +191,7 @@ static netdev_tx_t ipddp_xmit(struct sk_
  */
 static int ipddp_create(struct ipddp_route *new_rt)
 {
-        struct ipddp_route *rt = kmalloc(sizeof(*rt), GFP_KERNEL);
+        struct ipddp_route *rt = kzalloc(sizeof(*rt), GFP_KERNEL);
 
         if (rt == NULL)
                 return -ENOMEM;


Patches currently in stable-queue which might be from vlad@tsyrklevich.net are

queue-3.18/net-appletalk-fix-kernel-memory-disclosure.patch