syzbot


WARNING in journal_end

Status: upstream: reported C repro on 2025/08/30 04:29
Bug presence: origin:lts-only
[Documentation on labels]
Reported-by: syzbot+2a97593e3c765d1e0d4f@syzkaller.appspotmail.com
First crash: 293d, last: 3d07h
Bug presence (2)
Date Name Commit Repro Result
2025/12/21 linux-6.6.y (ToT) 5fa4793a2d2d C [report] WARNING in journal_end
2025/12/20 upstream (ToT) 91ff28ae6d05 C Didn't crash
Similar bugs (5)
Kernel Title Rank 🛈 Repro Cause bisect Fix bisect Count Last Reported Patched Status
linux-4.14 WARNING in journal_end reiserfs -1 C 2 1221d 1270d 0/1 upstream: reported C repro on 2022/12/26 21:28
upstream WARNING in journal_end fs -1 C error done 522 872d 1297d 0/29 auto-obsoleted due to no activity on 2024/04/08 04:41
linux-5.15 WARNING in journal_end origin:lts-only -1 C 79 12d 1162d 0/3 upstream: reported C repro on 2023/04/14 09:59
linux-4.19 WARNING in journal_end reiserfs -1 C error 3 1239d 1271d 0/1 upstream: reported C repro on 2022/12/26 09:51
linux-6.1 WARNING in journal_end origin:upstream missing-backport -1 C done 99 4d05h 1171d 0/3 upstream: reported C repro on 2023/04/05 07:47
Fix bisection attempts (4)
Created Duration User Patch Repo Result
2026/05/28 09:25 19m fix candidate upstream error job log
2026/03/26 04:14 1m fix candidate upstream error job log
2026/02/20 21:27 2m fix candidate upstream error job log
2026/01/21 20:55 1m fix candidate upstream error job log

Sample crash report:
REISERFS error (device loop0): vs-5150 search_by_key: invalid format found in block 533. Fsck?
REISERFS (device loop0): Remounting filesystem read-only
REISERFS error (device loop0): vs-13050 reiserfs_update_sd_size: i/o failure occurred trying to update [2 4 0x0 SD] stat data
------------[ cut here ]------------
WARNING: CPU: 1 PID: 5925 at fs/reiserfs/journal.c:3400 journal_end+0x1f1/0x2b0 fs/reiserfs/journal.c:3400
Modules linked in:
CPU: 1 PID: 5925 Comm: syz.0.17 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
RIP: 0010:journal_end+0x1f1/0x2b0 fs/reiserfs/journal.c:3400
Code: 38 00 00 00 48 89 de e8 ad 5f b5 ff 43 0f b6 04 27 84 c0 0f 85 a7 00 00 00 48 8b 04 24 c7 00 00 00 00 00 eb 30 e8 bf 1c 5d ff <0f> 0b b8 fb ff ff ff eb 24 e8 b1 1c 5d ff 48 89 df 31 f6 48 83 c4
RSP: 0018:ffffc90003317ad8 EFLAGS: 00010293
RAX: ffffffff822a0ed1 RBX: ffffc90003317b80 RCX: ffff88801abe5a00
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: ffffc90003317bb7 R09: 0000000000000000
R10: ffffc90003317b80 R11: fffff52000662f77 R12: ffffc90003317b94
R13: 1ffff1100357cd8d R14: ffff88801abe6c68 R15: 1ffff92000662f72
FS:  000055556addf500(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 0000000076ecf000 CR4: 00000000003506e0
Call Trace:
 <TASK>
 reiserfs_truncate_file+0x48b/0x7d0 fs/reiserfs/inode.c:2307
 reiserfs_file_release+0x946/0xad0 fs/reiserfs/file.c:109
 __fput+0x234/0x970 fs/file_table.c:384
 task_work_run+0x1d4/0x260 kernel/task_work.c:245
 resume_user_mode_work include/linux/resume_user_mode.h:49 [inline]
 exit_to_user_mode_loop+0xe6/0x110 kernel/entry/common.c:177
 exit_to_user_mode_prepare+0xee/0x180 kernel/entry/common.c:210
 __syscall_exit_to_user_mode_work kernel/entry/common.c:291 [inline]
 syscall_exit_to_user_mode+0x1a/0x50 kernel/entry/common.c:302
 do_syscall_64+0x61/0xb0 arch/x86/entry/common.c:82
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7fac32d9ce59
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffdf3623ed8 EFLAGS: 00000246 ORIG_RAX: 00000000000001b4
RAX: 0000000000000000 RBX: 00007ffdf3623fc0 RCX: 00007fac32d9ce59
RDX: 0000000000000000 RSI: 000000000000001e RDI: 0000000000000003
RBP: 0000000000015ebc R08: 0000000000000001 R09: 0000000000000000
R10: 0000001b33c20000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fac33015fac R14: 00007fac33015fa8 R15: 00007fac33015fa0
 </TASK>

Crashes (29):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2026/06/16 05:20 linux-6.6.y 924b4a879cbb 50bb0618 .config console log report syz / log C [disk image] [vmlinux] [kernel image] [mounted in repro (corrupt fs)] ci2-linux-6-6-kasan WARNING in journal_end
2025/12/02 20:08 linux-6.6.y 4791134e4aeb d6526ea3 .config console log report syz / log C [disk image] [vmlinux] [kernel image] [mounted in repro (corrupt fs)] ci2-linux-6-6-kasan WARNING in journal_end
2025/09/30 02:58 linux-6.6.y 147338df3487 86341da6 .config console log report syz / log [disk image] [vmlinux] [kernel image] [mounted in repro (corrupt fs)] ci2-linux-6-6-kasan WARNING in journal_end
2025/09/22 08:48 linux-6.6.y af1544b5d072 67c37560 .config console log report syz / log [disk image] [vmlinux] [kernel image] [mounted in repro #1 (corrupt fs)] [mounted in repro #2] ci2-linux-6-6-kasan WARNING in journal_end
2026/06/16 02:37 linux-6.6.y 924b4a879cbb 50bb0618 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan WARNING in journal_end
2026/06/16 02:37 linux-6.6.y 924b4a879cbb 50bb0618 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan WARNING in journal_end
2026/01/28 04:07 linux-6.6.y cbb31f77b879 3029c699 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan WARNING in journal_end
2025/12/31 04:10 linux-6.6.y 5fa4793a2d2d d6526ea3 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan WARNING in journal_end
2025/12/29 09:08 linux-6.6.y 5fa4793a2d2d d6526ea3 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan WARNING in journal_end
2025/12/23 13:25 linux-6.6.y 5fa4793a2d2d d6526ea3 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan WARNING in journal_end
2025/12/22 08:39 linux-6.6.y 5fa4793a2d2d d6526ea3 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan WARNING in journal_end
2025/12/19 21:31 linux-6.6.y 5fa4793a2d2d d6526ea3 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan WARNING in journal_end
2025/12/19 21:30 linux-6.6.y 5fa4793a2d2d d6526ea3 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan WARNING in journal_end
2025/12/19 21:09 linux-6.6.y 5fa4793a2d2d d6526ea3 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan WARNING in journal_end
2025/12/19 21:08 linux-6.6.y 5fa4793a2d2d d6526ea3 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan WARNING in journal_end
2025/12/19 19:01 linux-6.6.y 5fa4793a2d2d d6526ea3 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan WARNING in journal_end
2025/12/16 00:40 linux-6.6.y 5fa4793a2d2d d6526ea3 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan WARNING in journal_end
2025/12/12 19:13 linux-6.6.y 5fa4793a2d2d d6526ea3 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan WARNING in journal_end
2025/12/02 17:27 linux-6.6.y 4791134e4aeb d6526ea3 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan WARNING in journal_end
2025/11/12 01:06 linux-6.6.y 0a805b6ea8cd 4e1406b4 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan WARNING in journal_end
2025/10/02 16:43 linux-6.6.y f34f16e5c632 49379ee0 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan WARNING in journal_end
2025/09/29 14:40 linux-6.6.y 147338df3487 86341da6 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan WARNING in journal_end
2025/09/26 23:04 linux-6.6.y 147338df3487 001c9061 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan WARNING in journal_end
2025/09/22 06:10 linux-6.6.y af1544b5d072 67c37560 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan WARNING in journal_end
2025/09/22 06:10 linux-6.6.y af1544b5d072 67c37560 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan WARNING in journal_end
2025/09/22 06:01 linux-6.6.y af1544b5d072 67c37560 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan WARNING in journal_end
2025/09/22 06:01 linux-6.6.y af1544b5d072 67c37560 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan WARNING in journal_end
2025/09/22 05:50 linux-6.6.y af1544b5d072 67c37560 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan WARNING in journal_end
2025/08/30 04:29 linux-6.6.y cc1a1c5b404a 807a3b61 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan WARNING in journal_end
* Struck through repros no longer work on HEAD.