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[2620:137:e000::1:20]) by mx.google.com with ESMTP id k10si10845934pff.167.2022.02.07.03.58.55; Mon, 07 Feb 2022 03:59:30 -0800 (PST) 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 S1380966AbiBEWjJ (ORCPT + 99 others); Sat, 5 Feb 2022 17:39:09 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:42842 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233086AbiBEWjH (ORCPT ); Sat, 5 Feb 2022 17:39:07 -0500 Received: from mail-il1-f199.google.com (mail-il1-f199.google.com [209.85.166.199]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 69E98C061355 for ; Sat, 5 Feb 2022 14:39:07 -0800 (PST) Received: by mail-il1-f199.google.com with SMTP id g5-20020a056e020d0500b002be17521025so20770ilj.4 for ; Sat, 05 Feb 2022 14:39:07 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:mime-version:date:in-reply-to:message-id:subject :from:to; bh=Up70b3+pLCOVWXRm8xQGxM6soIoNpamDU4Qviu67t6s=; b=us69kEv+w4p7jIFpjuKZKm5lpnhE4+GYsfUT2E8TLnf9d3CQGAKAQCFzTiv+IyjX/T wHbNSM+gp7myBG+6QRO5f9P1vNdLDgbw8lm9Daj7edVEFDmj4W/0adI4w/zEpUHl/HQ1 DBYZIDfEZVFPWO+sLesKXGnOQOmMYASU/5x3STY7RrbTs4QiABTExxr7dDbWNgNAPzVB zBDs3+86+A7P3mgnP1sbWYx7z/mBainCTbniXrXvb3x1Tcy7Co04z3cco3yP6l2HbPsU x0AHoemiM01IehSboLXHtqEAdBbnmZmrOY4r4XKHUTpZ18NnRge25vPAfPoKPEHkhbzt JMaA== X-Gm-Message-State: AOAM531HBoxo2llVysUT2YC/wDwHgJohuMtWW1IQ1y5cjyCBVoOqS8nl maA8PvYcBa8f9Fj47+en+vIWk1/CkagBpMcG/NLhvnZooo7n MIME-Version: 1.0 X-Received: by 2002:a92:cda9:: with SMTP id g9mr2419625ild.29.1644100746734; Sat, 05 Feb 2022 14:39:06 -0800 (PST) Date: Sat, 05 Feb 2022 14:39:06 -0800 In-Reply-To: <0000000000001e0ba105d5c2dede@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <000000000000fbf22d05d74d08fb@google.com> Subject: Re: [syzbot] general protection fault in ext4_fill_super From: syzbot To: adilger.kernel@dilger.ca, cmaiolino@redhat.com, lczerner@redhat.com, linux-ext4@vger.kernel.org, linux-kernel@vger.kernel.org, llvm@lists.linux.dev, nathan@kernel.org, ndesaulniers@google.com, syzkaller-bugs@googlegroups.com, tytso@mit.edu Content-Type: text/plain; charset="UTF-8" X-Spam-Status: No, score=0.8 required=5.0 tests=BAYES_00,FROM_LOCAL_HEX, HEADER_FROM_DIFFERENT_DOMAINS,RCVD_IN_DNSWL_NONE,RCVD_IN_MSPIKE_H2, SORTED_RECIPS,SPF_HELO_NONE,SPF_PASS,T_SCC_BODY_TEXT_LINE 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 syzbot has bisected this issue to: commit cebe85d570cf84804e848332d6721bc9e5300e07 Author: Lukas Czerner Date: Wed Oct 27 14:18:56 2021 +0000 ext4: switch to the new mount api bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=14902978700000 start commit: 0457e5153e0e Merge tag 'for-linus' of git://git.kernel.org.. git tree: upstream final oops: https://syzkaller.appspot.com/x/report.txt?x=16902978700000 console output: https://syzkaller.appspot.com/x/log.txt?x=12902978700000 kernel config: https://syzkaller.appspot.com/x/.config?x=cd57c0f940a9a1ec dashboard link: https://syzkaller.appspot.com/bug?extid=138c9e58e3cb22eae3b4 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=17f7004fb00000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=178cf108700000 Reported-by: syzbot+138c9e58e3cb22eae3b4@syzkaller.appspotmail.com Fixes: cebe85d570cf ("ext4: switch to the new mount api") For information about bisection process see: https://goo.gl/tpsmEJ#bisection