syzbot


kernel BUG in jbd2_cleanup_journal_tail

Status: upstream: reported C repro on 2024/08/23 00:00
Subsystems: ext4
[Documentation on labels]
Reported-by: syzbot+8512f3dbd96253ffbe27@syzkaller.appspotmail.com
First crash: 94d, last: 54d
Discussions (1)
Title Replies (including bot) Last reply
[syzbot] [ext4?] [ocfs2?] kernel BUG in jbd2_cleanup_journal_tail 6 (8) 2024/08/28 12:28
Similar bugs (2)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
linux-6.1 kernel BUG in jbd2_cleanup_journal_tail origin:upstream C done 9 53d 65d 3/3 fixed on 2024/10/28 14:52
linux-5.15 kernel BUG in jbd2_cleanup_journal_tail C error 9 39d 66d 0/3 upstream: reported C repro on 2024/09/15 23:09
Last patch testing requests (5)
Created Duration User Patch Repo Result
2024/11/10 22:39 19m retest repro upstream OK log
2024/11/10 21:52 19m retest repro upstream OK log
2024/09/01 21:35 15m retest repro upstream report log
2024/09/01 21:35 15m retest repro upstream report log
2024/08/26 03:10 20m vpeixoto@lkcamp.dev patch upstream OK log

Sample crash report:
(syz.3.851,8892,1):ocfs2_check_volume:2481 ERROR: status = -22
(syz.3.851,8892,1):ocfs2_mount_volume:1821 ERROR: status = -22
------------[ cut here ]------------
kernel BUG at fs/jbd2/checkpoint.c:321!
Oops: invalid opcode: 0000 [#1] PREEMPT SMP KASAN NOPTI
CPU: 0 UID: 0 PID: 8892 Comm: syz.3.851 Not tainted 6.11.0-rc7-syzkaller-00151-gd42f7708e27c #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024
RIP: 0010:jbd2_cleanup_journal_tail+0x2bf/0x2d0 fs/jbd2/checkpoint.c:321
Code: 24 40 80 e1 07 80 c1 03 38 c1 0f 8c 65 ff ff ff 48 8d 7c 24 40 e8 b1 0c 89 ff e9 56 ff ff ff e8 77 e1 47 09 e8 b2 c4 21 ff 90 <0f> 0b 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 90 90 90 90 90
RSP: 0018:ffffc90002eced60 EFLAGS: 00010246
RAX: ffffffff8271c7fe RBX: 0000000000000000 RCX: 0000000000040000
RDX: ffffc9000e257000 RSI: 000000000003ffff RDI: 0000000000040000
RBP: ffffc90002ecee30 R08: ffffffff8271c687 R09: 1ffff1100b8f0016
R10: dffffc0000000000 R11: ffffed100b8f0017 R12: 1ffff920005d9db0
R13: ffff88805c780000 R14: 1ffff920005d9db6 R15: 1ffff1100b8f0000
FS:  00007f4fa517d6c0(0000) GS:ffff8880b8800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000563572453950 CR3: 000000006a8b4000 CR4: 0000000000350ef0
Call Trace:
 <TASK>
 jbd2_journal_flush+0x290/0xc10 fs/jbd2/journal.c:2479
 ocfs2_journal_shutdown+0x443/0xbe0 fs/ocfs2/journal.c:1081
 ocfs2_mount_volume+0x169f/0x1940 fs/ocfs2/super.c:1842
 ocfs2_fill_super+0x483b/0x5880 fs/ocfs2/super.c:1084
 mount_bdev+0x20c/0x2d0 fs/super.c:1679
 legacy_get_tree+0xf0/0x190 fs/fs_context.c:662
 vfs_get_tree+0x92/0x2b0 fs/super.c:1800
 do_new_mount+0x2be/0xb40 fs/namespace.c:3472
 do_mount fs/namespace.c:3812 [inline]
 __do_sys_mount fs/namespace.c:4020 [inline]
 __se_sys_mount+0x2d6/0x3c0 fs/namespace.c:3997
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f4fa437f69a
Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 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 ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f4fa517ce68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007f4fa517cef0 RCX: 00007f4fa437f69a
RDX: 0000000020000080 RSI: 0000000020000040 RDI: 00007f4fa517ceb0
RBP: 0000000020000080 R08: 00007f4fa517cef0 R09: 00000000000008c0
R10: 00000000000008c0 R11: 0000000000000246 R12: 0000000020000040
R13: 00007f4fa517ceb0 R14: 0000000000004436 R15: 00000000200000c0
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:jbd2_cleanup_journal_tail+0x2bf/0x2d0 fs/jbd2/checkpoint.c:321
Code: 24 40 80 e1 07 80 c1 03 38 c1 0f 8c 65 ff ff ff 48 8d 7c 24 40 e8 b1 0c 89 ff e9 56 ff ff ff e8 77 e1 47 09 e8 b2 c4 21 ff 90 <0f> 0b 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 90 90 90 90 90
RSP: 0018:ffffc90002eced60 EFLAGS: 00010246
RAX: ffffffff8271c7fe RBX: 0000000000000000 RCX: 0000000000040000
RDX: ffffc9000e257000 RSI: 000000000003ffff RDI: 0000000000040000
RBP: ffffc90002ecee30 R08: ffffffff8271c687 R09: 1ffff1100b8f0016
R10: dffffc0000000000 R11: ffffed100b8f0017 R12: 1ffff920005d9db0
R13: ffff88805c780000 R14: 1ffff920005d9db6 R15: 1ffff1100b8f0000
FS:  00007f4fa517d6c0(0000) GS:ffff8880b8800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000563572453950 CR3: 000000006a8b4000 CR4: 0000000000350ef0

Crashes (11):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2024/09/16 00:35 upstream d42f7708e27c 08d8a733 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root kernel BUG in jbd2_cleanup_journal_tail
2024/09/16 00:35 upstream d42f7708e27c 08d8a733 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root kernel BUG in jbd2_cleanup_journal_tail
2024/09/15 22:18 upstream d42f7708e27c 08d8a733 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs kernel BUG in jbd2_cleanup_journal_tail
2024/09/15 22:18 upstream d42f7708e27c 08d8a733 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs kernel BUG in jbd2_cleanup_journal_tail
2024/09/15 22:29 upstream d42f7708e27c 08d8a733 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in jbd2_cleanup_journal_tail
2024/08/18 21:35 upstream c3f2d783a459 e1c76ab2 .config console log report syz / log C [disk image (non-bootable)] [vmlinux] [kernel image] [mounted in repro] ci-snapshot-upstream-root kernel BUG in jbd2_cleanup_journal_tail
2024/08/18 21:16 upstream c3f2d783a459 e1c76ab2 .config console log report syz / log C [disk image (non-bootable)] [vmlinux] [kernel image] [mounted in repro] ci-snapshot-upstream-root kernel BUG in jbd2_cleanup_journal_tail
2024/09/27 19:45 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 5f5673607153 2b1784d6 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 kernel BUG in jbd2_cleanup_journal_tail
2024/09/27 19:45 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 5f5673607153 2b1784d6 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 kernel BUG in jbd2_cleanup_journal_tail
2024/09/15 22:31 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 5f5673607153 08d8a733 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 kernel BUG in jbd2_cleanup_journal_tail
2024/09/15 22:31 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 5f5673607153 08d8a733 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 kernel BUG in jbd2_cleanup_journal_tail
* Struck through repros no longer work on HEAD.