From: <gregkh@linuxfoundation.org>
To: vlad@tsyrklevich.net, alexander.levin@verizon.com,
davem@davemloft.net, gregkh@linuxfoundation.org
Cc: <stable@vger.kernel.org>, <stable-commits@vger.kernel.org>
Subject: Patch "net/appletalk: Fix kernel memory disclosure" has been added to the 4.9-stable tree
Date: Wed, 06 Dec 2017 17:59:55 +0100 [thread overview]
Message-ID: <151257959521521@kroah.com> (raw)
This is a note to let you know that I've just added the patch titled
net/appletalk: Fix kernel memory disclosure
to the 4.9-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-4.9 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 Wed Dec 6 17:39:55 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-4.9/net-appletalk-fix-kernel-memory-disclosure.patch
reply other threads:[~2017-12-06 17:00 UTC|newest]
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