From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-io1-f71.google.com (mail-io1-f71.google.com [209.85.166.71]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 0A5881EB46 for ; Tue, 30 Apr 2024 15:04:03 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.166.71 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1714489445; cv=none; b=EXu2KyAZ2DbpLJwa9sGfjTG+mN8Q/pcKxAH4DgSWnuraPyPv5Kizrz+T80WUK4XCKMWfOVXfxDxjWZXQ92fyletxtJtGRq224MOjxIgOmW8YJEevLgHLcOpCh0GtIOMzm0I+chkG1K62gEEGYwvbyZSHR2915l7M6So4+wQS3zo= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1714489445; c=relaxed/simple; bh=g+eaDs/HNr91gYab7fvFMZUmUzQXEdyjAn6OH6gxOuM=; h=MIME-Version:Date:In-Reply-To:Message-ID:Subject:From:To: Content-Type; b=okzuJTD4+CnzbkDHz7e1/U6MvHCJ8nXPChmQQHu8D98z5cqE3uFpB50pG+hS5wlXa/kymS/C44H45+XXKQaWlLFZuQnhrsMlQ9UNdj2HEUB7z4dl+R2p5bvD/fjxQPfjyYWsKFNA7tteA4ZaIQZ1nMVdQpePfjMLVGhgbPKp3dU= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=fail (p=none dis=none) header.from=syzkaller.appspotmail.com; spf=pass smtp.mailfrom=M3KW2WVRGUFZ5GODRSRYTGD7.apphosting.bounces.google.com; arc=none smtp.client-ip=209.85.166.71 Authentication-Results: smtp.subspace.kernel.org; dmarc=fail (p=none dis=none) header.from=syzkaller.appspotmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=M3KW2WVRGUFZ5GODRSRYTGD7.apphosting.bounces.google.com Received: by mail-io1-f71.google.com with SMTP id ca18e2360f4ac-7da41da873bso746928339f.3 for ; Tue, 30 Apr 2024 08:04:03 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1714489443; x=1715094243; 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=RXCBsJ9VpJqP069pIpVcCX4AQCkHuzifZjAsyl3v/7A=; b=bCCJTtMzgWPVY5/z1RLxZGl72wI/5kdrKMMIWNn86OVorJcXkB5VCN8VzB5jXe/nLy 1L2cZ+bCQnW+aITozCNREpRRb4Gn4MqKQL0M5YvwsMH6FlofM1hs1zyUCzjdD59zR9ej 7XiWliqpp7vSEOxXjY7inYhMgLd7JTP/vjSv2dV8ZLqL4hhyR/UNlsucswW2U59JDmwx iLlynQePqObF16PFf8bw0fUndtnF1PC4mFcMHl02W/grYtE/o3PScXisqVBtR1/Wr8Si pR63iBr+dRKGycucne1wYZn65GPCJ0DMIjlGbaQiSM8beMYWE0mcBgIJJ+RdELH5odqY XMNg== X-Forwarded-Encrypted: i=1; AJvYcCVvxrE6TDRgeIt70Cw/3UUt3piH8HM4OcOenppRSDZMDQew5ltn8YkWcvdfrV6bvvjiqCkDTMOJM4nrwvn1ByG5EBn/fDFuJkhrMw== X-Gm-Message-State: AOJu0YxCxQq7z2bZ0G0HULLtctPt4LDMpAbOX3jUnM44mVGEx8mEPMhr ZZ462zWqx2qpRwDdddXdwq6kWFcbd18N58ZvX5mKHTRKj0GfJPkaZ3E5HkGdNDxOJzpmXR40eek ZUulW6WOukn0mee8DT3SA8kbrL+udYuq5PxD1pCb1wrvKE8aVO+oUM1A= X-Google-Smtp-Source: AGHT+IGkd8oAm76xqllvXiuSWamFxZZiYiLXM1NPguwb9PwGX3UzuHCPrjUn7xv8FxEBtfkwICP8m65fHvN8Z8HUb/km2DGAfMWu Precedence: bulk X-Mailing-List: linux-ext4@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6638:37a9:b0:487:ea0:dc07 with SMTP id w41-20020a05663837a900b004870ea0dc07mr1194901jal.0.1714489443214; Tue, 30 Apr 2024 08:04:03 -0700 (PDT) Date: Tue, 30 Apr 2024 08:04:03 -0700 In-Reply-To: <00000000000072c6ba06174b30b7@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <0000000000003bf5be061751ae70@google.com> Subject: Re: [syzbot] [ext4?] WARNING in mb_cache_destroy From: syzbot To: adilger.kernel@dilger.ca, jack@suse.cz, libaokun1@huawei.com, linux-ext4@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, llvm@lists.linux.dev, nathan@kernel.org, ndesaulniers@google.com, ritesh.list@gmail.com, syzkaller-bugs@googlegroups.com, trix@redhat.com, tytso@mit.edu Content-Type: text/plain; charset="UTF-8" syzbot has bisected this issue to: commit 67d7d8ad99beccd9fe92d585b87f1760dc9018e3 Author: Baokun Li Date: Thu Jun 16 02:13:56 2022 +0000 ext4: fix use-after-free in ext4_xattr_set_entry bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=1011bcf8980000 start commit: b947cc5bf6d7 Merge tag 'erofs-for-6.9-rc7-fixes' of git://.. git tree: upstream final oops: https://syzkaller.appspot.com/x/report.txt?x=1211bcf8980000 console output: https://syzkaller.appspot.com/x/log.txt?x=1411bcf8980000 kernel config: https://syzkaller.appspot.com/x/.config?x=d2f00edef461175 dashboard link: https://syzkaller.appspot.com/bug?extid=dd43bd0f7474512edc47 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=11d2957f180000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=1620ca40980000 Reported-by: syzbot+dd43bd0f7474512edc47@syzkaller.appspotmail.com Fixes: 67d7d8ad99be ("ext4: fix use-after-free in ext4_xattr_set_entry") For information about bisection process see: https://goo.gl/tpsmEJ#bisection