Patch "af_iucv: Validate socket address length in iucv_sock_bind()" has been added to the 4.4-stable tree

Patch "af_iucv: Validate socket address length in iucv_sock_bind()" has been added to the 4.4-stable tree

[gregkh]

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

    af_iucv: Validate socket address length in iucv_sock_bind()

to the 4.4-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:
     af_iucv-validate-socket-address-length-in-iucv_sock_bind.patch
and it can be found in the queue-4.4 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 Mon Feb 29 14:33:50 PST 2016
From: Ursula Braun <ursula.braun@de.ibm.com>
Date: Tue, 19 Jan 2016 10:41:33 +0100
Subject: af_iucv: Validate socket address length in iucv_sock_bind()

From: Ursula Braun <ursula.braun@de.ibm.com>

[ Upstream commit 52a82e23b9f2a9e1d429c5207f8575784290d008 ]

Signed-off-by: Ursula Braun <ursula.braun@de.ibm.com>
Reported-by: Dmitry Vyukov <dvyukov@google.com>
Reviewed-by: Evgeny Cherkashin <Eugene.Crosser@ru.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 net/iucv/af_iucv.c |    3 +++
 1 file changed, 3 insertions(+)

--- a/net/iucv/af_iucv.c
+++ b/net/iucv/af_iucv.c
@@ -708,6 +708,9 @@ static int iucv_sock_bind(struct socket
 	if (!addr || addr->sa_family != AF_IUCV)
 		return -EINVAL;
 
+	if (addr_len < sizeof(struct sockaddr_iucv))
+		return -EINVAL;
+
 	lock_sock(sk);
 	if (sk->sk_state != IUCV_OPEN) {
 		err = -EBADFD;


Patches currently in stable-queue which might be from ursula.braun@de.ibm.com are

queue-4.4/af_iucv-validate-socket-address-length-in-iucv_sock_bind.patch