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[2620:137:e000::1:20]) by mx.google.com with ESMTP id n11-20020a635c4b000000b00456b507fb2asi22550579pgm.446.2022.10.20.15.15.49; Thu, 20 Oct 2022 15:16:03 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20; Authentication-Results: mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=appspotmail.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229610AbiJTVap (ORCPT + 99 others); Thu, 20 Oct 2022 17:30:45 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:51894 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229992AbiJTVac (ORCPT ); Thu, 20 Oct 2022 17:30:32 -0400 Received: from mail-il1-f199.google.com (mail-il1-f199.google.com [209.85.166.199]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 185A017D28D for ; Thu, 20 Oct 2022 14:30:24 -0700 (PDT) Received: by mail-il1-f199.google.com with SMTP id s2-20020a056e02216200b002f9de38e484so1038006ilv.8 for ; Thu, 20 Oct 2022 14:30:24 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=to:from:subject:message-id:in-reply-to:date:mime-version :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=fOEVwTpTV+WiIgW9Y6aHqhsmoIOJQCR2rrVmT5U2Q8A=; b=IqOnNeViFBU+b1RUk2xm01/v9VPYs9Aoh62/23eTlwppR0JLjdLZX2WtLaVavHI2zd 8GYmv5aUKS5LCsSIDBw6i1DbLYKIu0XVt8xJFwvue7s8mgB36i3sClMngMYVspO7m1dj qOjsZOhoC0GLxDZKo/Zh/JWs7zitwbzeMPywC3iWKbrD8nJsVJ+jwKYKrr4VDNEvShWp F9JM/0MojZtRPPH6pdZRl+FtwEWMbABV9+VGNK7jBPxPraa8bRrWD5oMdXRFjO4e9TGb 8PReqAe2gngz8AGOOGdSCls7/+Ly75N8w4a90L1bJ3uH7uQcdsvQ/KPQqWPEpn3ThFHR l/ng== X-Gm-Message-State: ACrzQf3D4jO1EUpDLWr7xupisZU3BsLVGPpkkeY60zEj8RtP53WolSnW Rn8qx3AiOz/TtVJO8V/vgv6aChCUf0GUVB7XoU/5dTAQH7+g MIME-Version: 1.0 X-Received: by 2002:a05:6e02:154f:b0:2f9:f2ed:b661 with SMTP id j15-20020a056e02154f00b002f9f2edb661mr10986924ilu.134.1666301423549; Thu, 20 Oct 2022 14:30:23 -0700 (PDT) Date: Thu, 20 Oct 2022 14:30:23 -0700 In-Reply-To: <20221020105004.1341-1-hdanton@sina.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <0000000000007084e105eb7e0869@google.com> Subject: Re: [syzbot] KASAN: use-after-free Read in kernfs_next_descendant_post (2) From: syzbot To: hdanton@sina.com, linux-kernel@vger.kernel.org, syzkaller-bugs@googlegroups.com, tj@kernel.org Content-Type: text/plain; charset="UTF-8" X-Spam-Status: No, score=-1.6 required=5.0 tests=BAYES_00,FROM_LOCAL_HEX, HEADER_FROM_DIFFERENT_DOMAINS,RCVD_IN_DNSWL_NONE,RCVD_IN_MSPIKE_H2, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED autolearn=no autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hello, syzbot has tested the proposed patch but the reproducer is still triggering an issue: SYZFATAL: executor failed NUM times: executor NUM: exit status NUM 2022/10/20 21:28:38 SYZFATAL: executor failed 11 times: executor 0: exit status 67 SYZFAIL: wrong response packet (errno 16: Device or resource busy) loop exited with status 67 SYZFAIL: wrong response packet (errno 16: Device or resource busy) loop exited with status 67 Tested on: commit: 55be6084 Merge tag 'timers-core-2022-10-05' of git://g.. git tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git console output: https://syzkaller.appspot.com/x/log.txt?x=1086ad3c880000 kernel config: https://syzkaller.appspot.com/x/.config?x=df75278aabf0681a dashboard link: https://syzkaller.appspot.com/bug?extid=6bc35f3913193fe7f0d3 compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2 patch: https://syzkaller.appspot.com/x/patch.diff?x=1540e4ba880000