WARNING in mark_buffer_dirty (3)

Status: auto-closed as invalid on 2021/06/27 09:01
Subsystems: ext4
[Documentation on labels]
Reported-by: syzbot+7d5c3e0439dc861b68fc@syzkaller.appspotmail.com
First crash: 2004d, last: 1987d
▶ ▼ Discussions (1)
Title Replies (including bot) Last reply
WARNING in mark_buffer_dirty (3) 0 (1) 2021/02/14 16:48
▶ ▼ Similar bugs (14)
Kernel Title Rank 🛈 Repro Cause bisect Fix bisect Count Last Reported Patched Status
linux-4.19 WARNING in mark_buffer_dirty bfs -1 syz, C error 10 1314d 1659d 0/1 upstream: reported C repro on 2022/01/20 22:23
upstream WARNING in mark_buffer_dirty (6) fs -1 syz, C error 11669 458d 1025d 28/29 fixed on 2025/05/06 15:33
upstream WARNING in mark_buffer_dirty (4) bfs nilfs -1 syz, C inconclusive 1152 1156d 1495d 22/29 fixed on 2023/06/08 14:41
android-44 WARNING in mark_buffer_dirty -1 2 2774d 2672d 0/2 auto-closed as invalid on 2019/07/01 11:44
upstream WARNING in mark_buffer_dirty fs -1 syz, C 21 2803d 3186d 0/29 closed as invalid on 2019/07/24 04:22
linux-4.14 WARNING in mark_buffer_dirty (2) nilfs2 -1 syz, C error 8 1256d 1639d 0/1 upstream: reported C repro on 2022/02/10 08:17
upstream WARNING in mark_buffer_dirty (2) ext4 -1 665 2305d 2438d 0/29 auto-closed as invalid on 2020/07/14 01:44
linux-6.6 WARNING in mark_buffer_dirty origin:lts-only -1 syz, C inconclusive 383 139d 391d 0/2 upstream: reported C repro on 2025/07/12 17:25
upstream WARNING in mark_buffer_dirty (5) nilfs -1 syz, C done 172 1032d 1152d 23/29 fixed on 2023/10/12 12:48
upstream WARNING in mark_buffer_dirty (7) prio:low bfs -1 syz, C error error 1012 134d 454d 0/29 upstream: reported C repro on 2025/05/10 17:11
android-49 WARNING in mark_buffer_dirty -1 7 2619d 2672d 0/3 auto-closed as invalid on 2019/10/25 08:47
linux-4.14 WARNING in mark_buffer_dirty -1 1 2399d 2399d 0/1 auto-closed as invalid on 2020/05/11 07:45
linux-5.15 WARNING in mark_buffer_dirty origin:upstream -1 syz, C error 301 137d 1240d 0/3 upstream: reported C repro on 2023/03/15 22:22
linux-6.1 WARNING in mark_buffer_dirty origin:lts-only -1 syz, C inconclusive 376 142d 1243d 0/3 upstream: reported C repro on 2023/03/13 14:09

Sample crash report:
------------[ cut here ]------------
WARNING: CPU: 1 PID: 4954 at fs/buffer.c:1113 mark_buffer_dirty+0x488/0x5d0 fs/buffer.c:1113
Modules linked in:
CPU: 1 PID: 4954 Comm: jbd2/sda1-8 Not tainted 5.11.0-syzkaller #0
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.14.0-2 04/01/2014
RIP: 0010:mark_buffer_dirty+0x488/0x5d0 fs/buffer.c:1113
Code: c1 ea 03 80 3c 02 00 0f 85 52 01 00 00 48 8b 3b be 04 00 00 00 e8 28 ad fc ff 5b 5d 41 5c 41 5d e9 7d 46 a1 ff e8 78 46 a1 ff <0f> 0b e9 bf fb ff ff e8 6c 46 a1 ff 0f 0b e9 e3 fb ff ff e8 60 46
RSP: 0000:ffffc9000d36fa20 EFLAGS: 00010293
RAX: 0000000000000000 RBX: ffff888043731040 RCX: 0000000000000000
RDX: ffff88801b2fa240 RSI: ffffffff81d21348 RDI: 0000000000000003
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: ffffffff81d20f05 R11: 0000000000000000 R12: ffff888043731040
R13: ffff888027e96380 R14: ffff88801ffa65a0 R15: ffff88801ffea960
FS:  0000000000000000(0000) GS:ffff88802cb00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000be5000 CR3: 0000000012c36000 CR4: 0000000000150ee0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 __jbd2_journal_temp_unlink_buffer+0x3ba/0x500 fs/jbd2/transaction.c:2021
 __jbd2_journal_unfile_buffer+0x60/0xb0 fs/jbd2/transaction.c:2035
 __jbd2_journal_refile_buffer+0x3d2/0x4a0 fs/jbd2/transaction.c:2581
 jbd2_journal_commit_transaction+0x440d/0x6ba0 fs/jbd2/commit.c:1084
 kjournald2+0x1d0/0x930 fs/jbd2/journal.c:213
 kthread+0x3b1/0x4a0 kernel/kthread.c:292
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:294

Crashes (2):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2021/02/27 09:00 upstream 3fb6d0e00efc 4c37c133 .config console log report info ci-qemu-upstream WARNING in mark_buffer_dirty
2021/02/10 16:37 upstream e0756cfc7d7c 9c8b8541 .config console log report info ci-qemu-upstream WARNING in mark_buffer_dirty
* Struck through repros no longer work on HEAD.