From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id A36EEC433EF for ; Fri, 11 Feb 2022 09:08:48 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235530AbiBKJIr (ORCPT ); Fri, 11 Feb 2022 04:08:47 -0500 Received: from mxb-00190b01.gslb.pphosted.com ([23.128.96.19]:52312 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S238422AbiBKJIn (ORCPT ); Fri, 11 Feb 2022 04:08:43 -0500 Received: from out30-56.freemail.mail.aliyun.com (out30-56.freemail.mail.aliyun.com [115.124.30.56]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 8ECCDC30; Fri, 11 Feb 2022 01:08:42 -0800 (PST) X-Alimail-AntiSpam: AC=PASS;BC=-1|-1;BR=01201311R191e4;CH=green;DM=||false|;DS=||;FP=0|-1|-1|-1|0|-1|-1|-1;HT=e01e04394;MF=guwen@linux.alibaba.com;NM=1;PH=DS;RN=8;SR=0;TI=SMTPD_---0V48M.tt_1644570517; Received: from 30.225.24.58(mailfrom:guwen@linux.alibaba.com fp:SMTPD_---0V48M.tt_1644570517) by smtp.aliyun-inc.com(127.0.0.1); Fri, 11 Feb 2022 17:08:38 +0800 Message-ID: Date: Fri, 11 Feb 2022 17:08:36 +0800 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:91.0) Gecko/20100101 Thunderbird/91.4.0 Subject: Re: [syzbot] KASAN: slab-out-of-bounds Read in smc_fback_error_report To: syzbot , davem@davemloft.net, kgraul@linux.ibm.com, kuba@kernel.org, linux-kernel@vger.kernel.org, linux-s390@vger.kernel.org, netdev@vger.kernel.org, syzkaller-bugs@googlegroups.com References: <00000000000013ca8105d7ae3ada@google.com> From: Wen Gu In-Reply-To: <00000000000013ca8105d7ae3ada@google.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 2022/2/11 2:36 am, syzbot wrote: > BUG: KASAN: slab-out-of-bounds in smc_fback_error_report+0x96/0xa0 net/smc/af_smc.c:664 > Read of size 8 at addr ffff88801ca31aa8 by task swapper/0/0 Thanks for the report. I am working on fixing this. It looks like smc_sock has been freed during the call to smc_fback_error_report(). Thanks, Wen Gu