From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail.linuxfoundation.org ([140.211.169.12]:39670 "EHLO mail.linuxfoundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1164156AbdD2GXt (ORCPT ); Sat, 29 Apr 2017 02:23:49 -0400 Subject: Patch "ipv6: sr: fix out-of-bounds access in SRH validation" has been added to the 4.10-stable tree To: david.lebrun@uclouvain.be, andreyknvl@google.com, davem@davemloft.net, gregkh@linuxfoundation.org Cc: , From: Date: Sat, 29 Apr 2017 08:23:16 +0200 Message-ID: <149344699621731@kroah.com> MIME-Version: 1.0 Content-Type: text/plain; charset=ANSI_X3.4-1968 Content-Transfer-Encoding: 8bit Sender: stable-owner@vger.kernel.org List-ID: This is a note to let you know that I've just added the patch titled ipv6: sr: fix out-of-bounds access in SRH validation to the 4.10-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: ipv6-sr-fix-out-of-bounds-access-in-srh-validation.patch and it can be found in the queue-4.10 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let know about it. >>From foo@baz Sat Apr 29 08:22:40 CEST 2017 From: David Lebrun Date: Tue, 18 Apr 2017 17:59:49 +0200 Subject: ipv6: sr: fix out-of-bounds access in SRH validation From: David Lebrun [ Upstream commit 2f3bb64247b5b083d05ccecad9c2e139bbfdc294 ] This patch fixes an out-of-bounds access in seg6_validate_srh() when the trailing data is less than sizeof(struct sr6_tlv). Reported-by: Andrey Konovalov Cc: Andrey Konovalov Signed-off-by: David Lebrun Signed-off-by: David S. Miller Signed-off-by: Greg Kroah-Hartman --- net/ipv6/seg6.c | 3 +++ 1 file changed, 3 insertions(+) --- a/net/ipv6/seg6.c +++ b/net/ipv6/seg6.c @@ -53,6 +53,9 @@ bool seg6_validate_srh(struct ipv6_sr_hd struct sr6_tlv *tlv; unsigned int tlv_len; + if (trailing < sizeof(*tlv)) + return false; + tlv = (struct sr6_tlv *)((unsigned char *)srh + tlv_offset); tlv_len = sizeof(*tlv) + tlv->len; Patches currently in stable-queue which might be from david.lebrun@uclouvain.be are queue-4.10/ipv6-sr-fix-double-free-of-skb-after-handling-invalid-srh.patch queue-4.10/ipv6-sr-fix-out-of-bounds-access-in-srh-validation.patch