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WARNING in mark_buffer_dirty

Status: upstream: reported C repro on 2025/07/12 17:25
Bug presence: origin:lts-only
[Documentation on labels]
Reported-by: syzbot+1d3cc35f66cd8ede91bf@syzkaller.appspotmail.com
First crash: 212d, last: 2d03h
▶ ▼ Bug presence (2)
Date Name Commit Repro Result
2025/07/15 linux-6.6.y (ToT) 9247f4e6573a C [report] WARNING in mark_buffer_dirty
2025/07/15 upstream (ToT) 155a3c003e55 C Didn't crash
▶ ▼ 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 C error 10 1135d 1481d 0/1 upstream: reported C repro on 2022/01/20 22:23
upstream WARNING in mark_buffer_dirty (6) fs -1 C error 11669 279d 846d 28/29 fixed on 2025/05/06 15:33
upstream WARNING in mark_buffer_dirty (4) bfs nilfs -1 C inconclusive 1152 977d 1316d 22/29 fixed on 2023/06/08 14:41
android-44 WARNING in mark_buffer_dirty -1 2 2595d 2493d 0/2 auto-closed as invalid on 2019/07/01 11:44
upstream WARNING in mark_buffer_dirty fs -1 C 21 2624d 3007d 0/29 closed as invalid on 2019/07/24 04:22
linux-4.14 WARNING in mark_buffer_dirty (2) nilfs2 -1 C error 8 1077d 1460d 0/1 upstream: reported C repro on 2022/02/10 08:17
upstream WARNING in mark_buffer_dirty (2) ext4 -1 665 2126d 2259d 0/29 auto-closed as invalid on 2020/07/14 01:44
upstream WARNING in mark_buffer_dirty (5) nilfs -1 C done 172 854d 973d 23/29 fixed on 2023/10/12 12:48
upstream WARNING in mark_buffer_dirty (7) bfs hfs -1 C error 904 21h48m 275d 0/29 upstream: reported C repro on 2025/05/10 17:11
upstream WARNING in mark_buffer_dirty (3) ext4 -1 2 1808d 1821d 0/29 auto-closed as invalid on 2021/06/27 09:01
android-49 WARNING in mark_buffer_dirty -1 7 2440d 2493d 0/3 auto-closed as invalid on 2019/10/25 08:47
linux-4.14 WARNING in mark_buffer_dirty -1 1 2220d 2220d 0/1 auto-closed as invalid on 2020/05/11 07:45
linux-5.15 WARNING in mark_buffer_dirty origin:upstream -1 C error 300 22d 1062d 0/3 upstream: reported C repro on 2023/03/15 22:22
linux-6.1 WARNING in mark_buffer_dirty origin:lts-only -1 C inconclusive 370 11d 1064d 0/3 upstream: reported C repro on 2023/03/13 14:09
▶ ▼ Fix bisection attempts (1)
Created Duration User Patch Repo Result
2025/08/10 02:24 2h12m fix candidate upstream OK (0) job log

Sample crash report:
------------[ cut here ]------------
WARNING: CPU: 0 PID: 6016 at fs/buffer.c:1188 mark_buffer_dirty+0x2bb/0x4d0 fs/buffer.c:1188
Modules linked in:
CPU: 0 PID: 6016 Comm: segctord Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025
RIP: 0010:mark_buffer_dirty+0x2bb/0x4d0 fs/buffer.c:1188
Code: 00 00 00 5b 41 5c 41 5e 41 5f 5d e9 bf ac fc ff e8 aa fe 89 ff 48 89 df 5b 41 5c 41 5e 41 5f 5d e9 5a 5a e8 ff e8 95 fe 89 ff <0f> 0b e9 84 fd ff ff e8 89 fe 89 ff 0f 0b e9 b0 fd ff ff e8 7d fe
RSP: 0018:ffffc900036e76f0 EFLAGS: 00010293
RAX: ffffffff81fb90cb RBX: ffff88805c8712b8 RCX: ffff88802245da00
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000002
RBP: ffffc900036e7b01 R08: ffff88805c8712bf R09: 1ffff1100b90e257
R10: dffffc0000000000 R11: ffffed100b90e258 R12: 1ffff1100b94168f
R13: ffff88805ca0b488 R14: ffff88802c1f5328 R15: 1ffff1100b941691
FS:  0000000000000000(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007eff492de000 CR3: 000000006c35c000 CR4: 00000000003506f0
Call Trace:
 <TASK>
 nilfs_segctor_collect_dirty_files fs/nilfs2/segment.c:2009 [inline]
 nilfs_segctor_do_construct+0x32c/0x6870 fs/nilfs2/segment.c:2071
 nilfs_segctor_construct+0x17b/0x690 fs/nilfs2/segment.c:2454
 nilfs_segctor_thread_construct fs/nilfs2/segment.c:2562 [inline]
 nilfs_segctor_thread+0x4f6/0x1000 fs/nilfs2/segment.c:2646
 kthread+0x2fa/0x390 kernel/kthread.c:388
 ret_from_fork+0x48/0x80 arch/x86/kernel/process.c:152
 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:293
 </TASK>

Crashes (355):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2025/10/21 18:35 linux-6.6.y f231f248323d 9832ed61 .config console log report syz / log C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-linux-6-6-kasan WARNING in mark_buffer_dirty
2025/07/12 18:26 linux-6.6.y 59a2de10b81a 3cda49cf .config console log report syz / log C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-linux-6-6-kasan WARNING in mark_buffer_dirty
2026/02/07 21:05 linux-6.6.y c56aaf1a85ae 4c131dc4 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan WARNING in mark_buffer_dirty
2026/02/07 03:12 linux-6.6.y c56aaf1a85ae f20fc9f9 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan WARNING in mark_buffer_dirty
2026/02/06 20:34 linux-6.6.y c56aaf1a85ae 97745f52 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan WARNING in mark_buffer_dirty
2026/02/06 00:44 linux-6.6.y 2cf6f68313dc f03c4191 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan WARNING in mark_buffer_dirty
2026/02/05 13:24 linux-6.6.y 2cf6f68313dc 4936e85c .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan WARNING in mark_buffer_dirty
2026/02/04 17:27 linux-6.6.y 2cf6f68313dc ea10c935 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan WARNING in mark_buffer_dirty
2026/02/04 00:57 linux-6.6.y 2cf6f68313dc 42b01fab .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan WARNING in mark_buffer_dirty
2026/02/02 12:03 linux-6.6.y 2cf6f68313dc 018ebef2 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan WARNING in mark_buffer_dirty
2026/02/01 04:05 linux-6.6.y 2cf6f68313dc 6b8752f2 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan WARNING in mark_buffer_dirty
2026/01/31 18:51 linux-6.6.y 2cf6f68313dc afc0c4d4 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan WARNING in mark_buffer_dirty
2026/01/31 16:09 linux-6.6.y 2cf6f68313dc afc0c4d4 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan WARNING in mark_buffer_dirty
2026/01/31 03:20 linux-6.6.y 2cf6f68313dc c75a2f6e .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan WARNING in mark_buffer_dirty
2026/01/30 15:24 linux-6.6.y 2cf6f68313dc ae7dc18c .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan WARNING in mark_buffer_dirty
2026/01/30 03:17 linux-6.6.y cbb31f77b879 bfa73b7b .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan WARNING in mark_buffer_dirty
2026/01/29 03:36 linux-6.6.y cbb31f77b879 0adc945e .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan WARNING in mark_buffer_dirty
2026/01/28 15:03 linux-6.6.y cbb31f77b879 004c195c .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan WARNING in mark_buffer_dirty
2026/01/28 02:54 linux-6.6.y cbb31f77b879 3029c699 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan WARNING in mark_buffer_dirty
2026/01/27 14:37 linux-6.6.y cbb31f77b879 9a514c2f .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan WARNING in mark_buffer_dirty
2026/01/26 14:48 linux-6.6.y cbb31f77b879 a4c52dd6 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan WARNING in mark_buffer_dirty
2026/01/26 01:21 linux-6.6.y cbb31f77b879 55756628 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan WARNING in mark_buffer_dirty
2026/01/24 14:57 linux-6.6.y cbb31f77b879 40acda8a .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan WARNING in mark_buffer_dirty
2026/01/24 04:00 linux-6.6.y cbb31f77b879 4f25b9b4 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan WARNING in mark_buffer_dirty
2026/01/23 15:26 linux-6.6.y cbb31f77b879 e2b1b6e6 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan WARNING in mark_buffer_dirty
2026/01/22 23:40 linux-6.6.y cbb31f77b879 82c9c083 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan WARNING in mark_buffer_dirty
2026/01/22 10:58 linux-6.6.y cbb31f77b879 a16aed1d .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan WARNING in mark_buffer_dirty
2026/01/21 23:17 linux-6.6.y cbb31f77b879 8fc37797 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan WARNING in mark_buffer_dirty
2026/01/21 11:22 linux-6.6.y cbb31f77b879 6f1aa2f9 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan WARNING in mark_buffer_dirty
2026/01/20 16:53 linux-6.6.y cbb31f77b879 06648d9c .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan WARNING in mark_buffer_dirty
2026/01/19 15:33 linux-6.6.y cbb31f77b879 a9fc5226 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan WARNING in mark_buffer_dirty
2026/01/17 22:19 linux-6.6.y cbb31f77b879 20d37d28 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan WARNING in mark_buffer_dirty
2026/01/17 05:25 linux-6.6.y c596736dadab 20d37d28 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan WARNING in mark_buffer_dirty
2026/01/14 17:52 linux-6.6.y c596736dadab d6526ea3 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan WARNING in mark_buffer_dirty
2026/01/11 23:10 linux-6.6.y c596736dadab d6526ea3 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan WARNING in mark_buffer_dirty
2026/01/11 07:34 linux-6.6.y 5fa4793a2d2d d6526ea3 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan WARNING in mark_buffer_dirty
2026/01/11 03:48 linux-6.6.y 5fa4793a2d2d d6526ea3 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan WARNING in mark_buffer_dirty
2026/01/10 19:16 linux-6.6.y 5fa4793a2d2d d6526ea3 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan WARNING in mark_buffer_dirty
2026/01/03 08:11 linux-6.6.y 5fa4793a2d2d d6526ea3 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan WARNING in mark_buffer_dirty
2026/01/02 10:31 linux-6.6.y 5fa4793a2d2d d6526ea3 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan WARNING in mark_buffer_dirty
2026/01/01 21:41 linux-6.6.y 5fa4793a2d2d d6526ea3 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan WARNING in mark_buffer_dirty
2026/01/01 20:29 linux-6.6.y 5fa4793a2d2d d6526ea3 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan WARNING in mark_buffer_dirty
2025/12/30 16:02 linux-6.6.y 5fa4793a2d2d d6526ea3 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan WARNING in mark_buffer_dirty
2025/12/29 09:44 linux-6.6.y 5fa4793a2d2d d6526ea3 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan WARNING in mark_buffer_dirty
2025/12/29 03:57 linux-6.6.y 5fa4793a2d2d d6526ea3 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan WARNING in mark_buffer_dirty
2025/12/27 11:09 linux-6.6.y 5fa4793a2d2d d6526ea3 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan WARNING in mark_buffer_dirty
2025/07/12 17:25 linux-6.6.y 59a2de10b81a 3cda49cf .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan WARNING in mark_buffer_dirty
* Struck through repros no longer work on HEAD.