From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1033054AbeBNQx7 (ORCPT ); Wed, 14 Feb 2018 11:53:59 -0500 Received: from aserp2120.oracle.com ([141.146.126.78]:34048 "EHLO aserp2120.oracle.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1033026AbeBNQxz (ORCPT ); Wed, 14 Feb 2018 11:53:55 -0500 Subject: Re: KASAN: use-after-free Read in rds_find_bound To: Dmitry Vyukov Cc: syzbot , linux-rdma@vger.kernel.org, syzkaller-bugs@googlegroups.com, David Miller , LKML , netdev , rds-devel@oss.oracle.com References: <089e08231920353a4805618b365c@google.com> From: Santosh Shilimkar Organization: Oracle Corporation Message-ID: <491a26b8-7abb-0d36-0a2e-e1c7bfcde79d@oracle.com> Date: Wed, 14 Feb 2018 08:53:47 -0800 User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:52.0) Gecko/20100101 Thunderbird/52.6.0 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-US Content-Transfer-Encoding: 7bit X-Proofpoint-Virus-Version: vendor=nai engine=5900 definitions=8804 signatures=668670 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 suspectscore=0 malwarescore=0 phishscore=0 bulkscore=0 spamscore=0 mlxscore=0 mlxlogscore=906 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1711220000 definitions=main-1802140200 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 2/13/2018 12:12 PM, Dmitry Vyukov wrote: > On Sat, Dec 30, 2017 at 8:41 PM, santosh.shilimkar@oracle.com > wrote: >> On 12/30/17 1:17 AM, syzbot wrote: >>> >>> Hello, >>> >>> syzkaller hit the following crash on >>> fba961ab29e5ffb055592442808bb0f7962e05da >>> git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next.git/master >>> compiler: gcc (GCC) 7.1.1 20170620 >>> .config is attached >>> Raw console output is attached. >>> Unfortunately, I don't have any reproducer for this bug yet. >>> >>> >>> IMPORTANT: if you fix the bug, please add the following tag to the commit: >>> Reported-by: syzbot+93a5839deb355537440f@syzkaller.appspotmail.com >> >> >> Posted a fix[1] for above issue. Didn't test it but looks straight >> forward. > > > Hi Santosh, > > What is that fix? You forgot to provide any link/reference. I also > don't see any patches from you at around that date... > Fix [1] was later not added since there was a still a race. Wanted to see if the issue re-appears after recent netns fix [2]. Regards, Santosh [1] https://patchwork.kernel.org/patch/10137901/ [2] https://patchwork.ozlabs.org/patch/868902/