From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-oi1-f206.google.com (mail-oi1-f206.google.com [209.85.167.206]) (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 EA534384CFF for ; Thu, 25 Jun 2026 03:09:36 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.167.206 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1782356978; cv=none; b=n8zbZduBBqKjR0wUtNMXeQYYryrGX66O1IOncOTWmhkYE5N7a1cnbM1aOcAUCOc5qobCG0QnuRlTTNdG97DmxAgMc5VpvliFAGBf4oQNApeOeRxVlXAJpgOJ7nj7knAL963ewmSfPuEC/iJF0a+DeQQqMz4ZYIAMci0VFwRqVSs= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1782356978; c=relaxed/simple; bh=NA7V7lZWrtyGYE7nNAzfEuCaHe14WCLE+QbbNTTKvyk=; h=MIME-Version:Date:Message-ID:Subject:From:To:Content-Type; b=Ac3I2K8Vtf3naqgPQB1O9psk75r3YlqUN7HZG7frkjdLcYoZcWtddH0LUouRCHCJEkJg77OigZqWRkdwRZD95hBoEr4Ed5aDQ6kZj2Vd4kjqshq15z2MSzMqI/nzxHgb1O9D4cSrHhjY2v7IEDwJ9Mrj+kKZP65J3DYYe+LyCPk= 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=209.85.167.206 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-oi1-f206.google.com with SMTP id 5614622812f47-4909b046dabso2178609b6e.0 for ; Wed, 24 Jun 2026 20:09:36 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20251104; t=1782356976; x=1782961776; h=content-transfer-encoding:to:from:subject:message-id:date :mime-version:x-gm-message-state:from:to:cc:subject:date:message-id :reply-to; bh=EZ9CKbVUnzXnBukVOwXZeNPfZ3aYNvxS6k+XTFAFuDU=; b=fLgP7ffKX9E9uEA5gy8FUVEd3eiLgsf+ye4THdS/UV0e8w4G4dka/GyHjKtAI1yjgY gCMaQMtNP8LxkBxK1UIbFNL4BxTKPMyNTtvYq3UXMYl7daAl5fzHkVHLMvvO5QP3D1+K iUgqxgIlxVRZiVXAdiHAuM/I5DPYKbhUf123zE/xHbFWBIpkmn2I0xQRGXQOzq9WLiMx ADJVlbuX37jpIea8VipWY0NbDSpGLlWmDGJFtaEHQAgVqREePVsVaUbMEksttfwM9oBN D+KiX/zL70tV3N5EvSIBcqYZGGl/BRAbLhZjXFWuD7sHr58CIRds5xmb2NlNE6kRpQ4O htTQ== X-Forwarded-Encrypted: i=1; AFNElJ91EMvaUu4EWjMk7Phr6odOGbM9lzm+lOAsMhjOoy8M9k+FuvOmr1ilioso6DTFyQDl4dK2F/qH7EsRN1s=@vger.kernel.org X-Gm-Message-State: AOJu0YziKlUZPtoWVhl8OdRwAvIZx7sFOhgjYDKxLRSfJKFrJMrktGBm ospEAcAvWI3fA27yUWVj+Ea3lH5LwxpGGeSOpOJC3dNoBpFcKZP6IMSyOSzoAOAmPcxMrl/mLAc co6QVyDo1F0kjno59/9kyR5V1gG46fGMri15ufgGNy1ZQZtWpkAvscM1tSDc= Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6808:4fcb:b0:491:eac0:d56b with SMTP id 5614622812f47-4921890a19amr801148b6e.38.1782356975991; Wed, 24 Jun 2026 20:09:35 -0700 (PDT) Date: Wed, 24 Jun 2026 20:09:35 -0700 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <6a3c9bef.cf1c467f.2941c6.0003.GAE@google.com> Subject: [syzbot] [ocfs2?] kernel BUG in ocfs2_journal_toggle_dirty (2) From: syzbot To: jlbec@evilplan.org, joseph.qi@linux.alibaba.com, linux-kernel@vger.kernel.org, mark@fasheh.com, ocfs2-devel@lists.linux.dev, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable Hello, syzbot found the following issue on: HEAD commit: 1a3746ccbb0a Merge tag 'strncpy-removal-v7.2-rc1' of git:/.= . git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=3D177187b6580000 kernel config: https://syzkaller.appspot.com/x/.config?x=3Df5fece1a9477c32= 1 dashboard link: https://syzkaller.appspot.com/bug?extid=3Db79139db690388bc5= 3ce compiler: Debian clang version 22.1.6 (++20260514074242+fc4aad7b5db3-= 1~exp1~20260514074407.73), Debian LLD 22.1.6 Unfortunately, I don't have any reproducer for this issue yet. Downloadable assets: disk image (non-bootable): https://storage.googleapis.com/syzbot-assets/d90= 0f083ada3/non_bootable_disk-1a3746cc.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/376997b632fc/vmlinux-= 1a3746cc.xz kernel image: https://storage.googleapis.com/syzbot-assets/0920309c4838/bzI= mage-1a3746cc.xz IMPORTANT: if you fix the issue, please add the following tag to the commit= : Reported-by: syzbot+b79139db690388bc53ce@syzkaller.appspotmail.com loop0: detected capacity change from 0 to 32768 =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D WARNING: The mand mount option has been deprecated and and is ignored by this kernel. Remove the mand option from the mount to silence this warning. =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D ocfs2: Slot 0 on device (7,0) was already allocated to this node! JBD2: Ignoring recovery information on journal OCFS2: ERROR (device loop0): int ocfs2_validate_inode_block(struct super_bl= ock *, struct buffer_head *): Invalid dinode #75: signature =3D d=EF=BF=BD= =EF=BF=BD=EF=BF=BD=EF=BF=BD=0B On-disk corruption discovered. Please run fsck.ocfs2 once the filesystem is= unmounted. OCFS2: File system is now read-only. (syz.0.0,5323,0):ocfs2_read_journal_inode:1661 ERROR: status =3D -30 (syz.0.0,5323,0):ocfs2_mark_dead_nodes:1937 ERROR: status =3D -30 (syz.0.0,5323,0):ocfs2_check_volume:2419 ERROR: status =3D -30 (syz.0.0,5323,0):ocfs2_check_volume:2431 ERROR: status =3D -30 (syz.0.0,5323,0):ocfs2_mount_volume:1763 ERROR: status =3D -30 OCFS2: ERROR (device loop0): int ocfs2_validate_inode_block(struct super_bl= ock *, struct buffer_head *): Invalid dinode #71: signature =3D d=EF=BF=BD= =EF=BF=BD=EF=BF=BD=EF=BF=BD=07 On-disk corruption discovered. Please run fsck.ocfs2 once the filesystem is= unmounted. (syz.0.0,5323,0):ocfs2_assign_bh:2417 ERROR: status =3D -30 (syz.0.0,5323,0):ocfs2_inode_lock_full_nested:2512 ERROR: status =3D -30 (syz.0.0,5323,0):ocfs2_shutdown_local_alloc:412 ERROR: status =3D -30 ------------[ cut here ]------------ kernel BUG at fs/ocfs2/journal.c:1029! Oops: invalid opcode: 0000 [#1] SMP KASAN NOPTI CPU: 0 UID: 0 PID: 5323 Comm: syz.0.0 Not tainted syzkaller #0 PREEMPT(full= )=20 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16= .3-2 04/01/2014 RIP: 0010:ocfs2_journal_toggle_dirty+0x345/0x350 fs/ocfs2/journal.c:1029 Code: ff e8 9f be e3 07 44 89 f9 80 e1 07 80 c1 03 38 c1 0f 8c 56 fe ff ff = 4c 89 ff e8 86 c7 68 fe e9 49 fe ff ff e8 8c af f9 fd 90 <0f> 0b 66 0f 1f 8= 4 00 00 00 00 00 90 90 90 90 90 90 90 90 90 90 90 RSP: 0018:ffffc9000ded6fa0 EFLAGS: 00010293 RAX: ffffffff83cc9574 RBX: 1ffff110087936e5 RCX: ffff888038a40000 RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000 RBP: ffffc9000ded7070 R08: ffffffff9031d0f7 R09: 1ffffffff2063a1e R10: dffffc0000000000 R11: fffffbfff2063a1f R12: 0000000000000001 R13: ffff8880530f7600 R14: ffff88803f40b000 R15: 0000000000000000 FS: 00007ff2dfa446c0(0000) GS:ffff88808c848000(0000) knlGS:000000000000000= 0 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000563130104b30 CR3: 0000000012505000 CR4: 0000000000352ef0 Call Trace: ocfs2_journal_shutdown+0x540/0xb70 fs/ocfs2/journal.c:1111 ocfs2_mount_volume fs/ocfs2/super.c:1784 [inline] ocfs2_fill_super+0x5a04/0x6860 fs/ocfs2/super.c:1083 get_tree_bdev_flags+0x430/0x4f0 fs/super.c:1634 vfs_get_tree+0x92/0x2a0 fs/super.c:1694 fc_mount fs/namespace.c:1198 [inline] do_new_mount_fc fs/namespace.c:3765 [inline] do_new_mount+0x319/0xdc0 fs/namespace.c:3841 do_mount fs/namespace.c:4174 [inline] __do_sys_mount fs/namespace.c:4390 [inline] __se_sys_mount+0x31d/0x420 fs/namespace.c:4367 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x174/0x580 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7ff2deb9e0ca Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 = 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff f= f 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007ff2dfa43e18 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 00007ff2dfa43ea0 RCX: 00007ff2deb9e0ca RDX: 0000200000004440 RSI: 0000200000000040 RDI: 00007ff2dfa43e60 RBP: 0000200000004440 R08: 00007ff2dfa43ea0 R09: 00000000000008c0 R10: 00000000000008c0 R11: 0000000000000246 R12: 0000200000000040 R13: 00007ff2dfa43e60 R14: 0000000000004451 R15: 0000200000000080 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:ocfs2_journal_toggle_dirty+0x345/0x350 fs/ocfs2/journal.c:1029 Code: ff e8 9f be e3 07 44 89 f9 80 e1 07 80 c1 03 38 c1 0f 8c 56 fe ff ff = 4c 89 ff e8 86 c7 68 fe e9 49 fe ff ff e8 8c af f9 fd 90 <0f> 0b 66 0f 1f 8= 4 00 00 00 00 00 90 90 90 90 90 90 90 90 90 90 90 RSP: 0018:ffffc9000ded6fa0 EFLAGS: 00010293 RAX: ffffffff83cc9574 RBX: 1ffff110087936e5 RCX: ffff888038a40000 RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000 RBP: ffffc9000ded7070 R08: ffffffff9031d0f7 R09: 1ffffffff2063a1e R10: dffffc0000000000 R11: fffffbfff2063a1f R12: 0000000000000001 R13: ffff8880530f7600 R14: ffff88803f40b000 R15: 0000000000000000 FS: 00007ff2dfa446c0(0000) GS:ffff88808c848000(0000) knlGS:000000000000000= 0 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055ca07f64168 CR3: 0000000012505000 CR4: 0000000000352ef0 --- This report is generated by a bot. It may contain errors. See https://goo.gl/tpsmEJ for more information about syzbot. syzbot engineers can be reached at syzkaller@googlegroups.com. syzbot will keep track of this issue. See: https://goo.gl/tpsmEJ#status for how to communicate with syzbot. If the report is already addressed, let syzbot know by replying with: #syz fix: exact-commit-title If you want to overwrite report's subsystems, reply with: #syz set subsystems: new-subsystem (See the list of subsystem names on the web dashboard) If the report is a duplicate of another one, reply with: #syz dup: exact-subject-of-another-report If you want to undo deduplication, reply with: #syz undup