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kernel BUG in submit_bh_wbc (2)

Status: upstream: reported C repro on 2024/07/26 16:49
Bug presence: origin:lts-only
[Documentation on labels]
Reported-by: syzbot+e2f0d8715ecd9cb1024c@syzkaller.appspotmail.com
First crash: 325d, last: 7d20h
▶ ▼ Bug presence (2)
Date Name Commit Repro Result
2025/01/01 linux-6.1.y (ToT) 563edd786f0a C [report] kernel BUG in submit_bh_wbc
2025/01/01 upstream (ToT) ccb98ccef0e5 C Didn't crash
▶ ▼ Similar bugs (10)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
linux-6.1 kernel BUG in submit_bh_wbc origin:lts-only C done 19 376d 804d 3/3 fixed on 2024/07/20 06:27
upstream kernel BUG at fs/buffer.c:LINE! nilfs C done error 567 434d 2615d 25/28 fixed on 2024/04/10 03:59
upstream kernel BUG in submit_bh_wbc (2) udf C done 123 312d 418d 27/28 fixed on 2024/08/14 03:44
linux-4.14 kernel BUG at fs/buffer.c:LINE! C error 59 848d 2242d 0/1 upstream: reported C repro on 2019/04/27 19:47
linux-4.19 kernel BUG at fs/buffer.c:LINE! (2) udf ext4 C error 31 855d 1669d 0/1 upstream: reported C repro on 2020/11/21 07:48
android-54 kernel BUG at fs/buffer.c:LINE! ext4 C 4762 23d 1973d 0/2 upstream: reported C repro on 2020/01/21 13:12
upstream kernel BUG in submit_bh_wbc (3) nilfs fs C done 18 239d 246d 28/28 fixed on 2024/11/12 23:31
linux-5.15 kernel BUG in submit_bh_wbc C error 8 465d 743d 0/3 auto-obsoleted due to no activity on 2024/06/16 14:58
upstream kernel BUG in submit_bh_wbc nilfs C done 10 419d 428d 25/28 fixed on 2024/04/24 18:26
android-6-1 kernel BUG in submit_bh_wbc missing-backport origin:lts C done done 2031 11h07m 733d 0/2 upstream: reported C repro on 2023/06/15 00:20
▶ ▼ Fix bisection attempts (1)
Created Duration User Patch Repo Result
2025/02/18 02:31 3h04m fix candidate upstream OK (0) job log

Sample crash report:
------------[ cut here ]------------
kernel BUG at fs/buffer.c:2666!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 4254 Comm: kmmpd-loop0 Not tainted 6.1.139-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025
RIP: 0010:submit_bh_wbc+0x4ac/0x4d0 fs/buffer.c:2666
Code: 01 89 e9 80 e1 07 80 c1 03 38 c1 0f 8c c0 fe ff ff 48 89 ef e8 85 67 e2 ff e9 b3 fe ff ff e8 2b f4 90 ff 0f 0b e8 24 f4 90 ff <0f> 0b e8 1d f4 90 ff 0f 0b e8 16 f4 90 ff 0f 0b e8 0f f4 90 ff 0f
RSP: 0018:ffffc90003c67cc8 EFLAGS: 00010293
RAX: ffffffff81efe2ec RBX: 0000000000000000 RCX: ffff88801c7a9dc0
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000003801 R08: dffffc0000000000 R09: ffffed100e2f4458
R10: ffffed100e2f4458 R11: 1ffff1100e2f4457 R12: 1ffff1100e2f4457
R13: 0000000000000000 R14: ffff8880717a22b8 R15: ffff888072c24000
FS:  0000000000000000(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000564b197872b0 CR3: 0000000073fbb000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 write_mmp_block_thawed+0x360/0x4f0 fs/ext4/mmp.c:51
 write_mmp_block+0x13e/0x3a0 fs/ext4/mmp.c:67
 kmmpd+0x6f7/0x980 fs/ext4/mmp.c:246
 kthread+0x29d/0x330 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:submit_bh_wbc+0x4ac/0x4d0 fs/buffer.c:2666
Code: 01 89 e9 80 e1 07 80 c1 03 38 c1 0f 8c c0 fe ff ff 48 89 ef e8 85 67 e2 ff e9 b3 fe ff ff e8 2b f4 90 ff 0f 0b e8 24 f4 90 ff <0f> 0b e8 1d f4 90 ff 0f 0b e8 16 f4 90 ff 0f 0b e8 0f f4 90 ff 0f
RSP: 0018:ffffc90003c67cc8 EFLAGS: 00010293
RAX: ffffffff81efe2ec RBX: 0000000000000000 RCX: ffff88801c7a9dc0
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000003801 R08: dffffc0000000000 R09: ffffed100e2f4458
R10: ffffed100e2f4458 R11: 1ffff1100e2f4457 R12: 1ffff1100e2f4457
R13: 0000000000000000 R14: ffff8880717a22b8 R15: ffff888072c24000
FS:  0000000000000000(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000564b197ed6a0 CR3: 0000000073fbb000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400

Crashes (203):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2025/05/18 23:04 linux-6.1.y 325285d9fc86 f41472b0 .config console log report syz / log C [disk image] [vmlinux] [kernel image] [mounted in repro (clean fs)] ci2-linux-6-1-kasan kernel BUG in submit_bh_wbc
2025/02/23 15:27 linux-6.1.y 3a8358583626 d34966d1 .config console log report syz / log C [disk image] [vmlinux] [kernel image] [mounted in repro (clean fs)] ci2-linux-6-1-kasan kernel BUG in submit_bh_wbc
2024/12/28 12:40 linux-6.1.y 563edd786f0a d3ccff63 .config console log report syz / log C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-linux-6-1-kasan kernel BUG in submit_bh_wbc
2024/12/21 18:55 linux-6.1.y 29f02ec58a94 d7f584ee .config console log report syz / log C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-linux-6-1-kasan-arm64 kernel BUG in submit_bh_wbc
2024/11/04 00:06 linux-6.1.y 7c15117f9468 f00eed24 .config console log report syz / log C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-linux-6-1-kasan-arm64 kernel BUG in submit_bh_wbc
2025/06/09 16:33 linux-6.1.y 58485ff1a74f 4826c28e .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan kernel BUG in submit_bh_wbc
2025/05/15 06:04 linux-6.1.y 02b72ccb5f9d d6b2ee52 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan kernel BUG in submit_bh_wbc
2025/05/07 03:04 linux-6.1.y ac7079a42ea5 350f4ffc .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan kernel BUG in submit_bh_wbc
2025/04/23 06:49 linux-6.1.y 420102835862 53a8b9bd .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan kernel BUG in submit_bh_wbc
2025/04/21 10:16 linux-6.1.y 420102835862 2a20f901 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan kernel BUG in submit_bh_wbc
2025/04/19 21:03 linux-6.1.y 420102835862 2a20f901 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan kernel BUG in submit_bh_wbc
2025/04/17 18:00 linux-6.1.y 420102835862 229db4cf .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan kernel BUG in submit_bh_wbc
2025/04/16 09:09 linux-6.1.y 420102835862 a95239b1 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan kernel BUG in submit_bh_wbc
2025/04/11 13:38 linux-6.1.y 420102835862 94486846 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan kernel BUG in submit_bh_wbc
2025/04/08 19:36 linux-6.1.y 3dfebb87d7eb a775275d .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan kernel BUG in submit_bh_wbc
2025/04/05 03:47 linux-6.1.y 8e60a714ba3b c53ea9c9 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan kernel BUG in submit_bh_wbc
2025/03/24 09:04 linux-6.1.y 344a09659766 875573af .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan kernel BUG in submit_bh_wbc
2025/03/18 23:51 linux-6.1.y 344a09659766 22a6c2b1 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan kernel BUG in submit_bh_wbc
2025/03/17 18:14 linux-6.1.y 344a09659766 948c34e4 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan kernel BUG in submit_bh_wbc
2025/03/15 19:21 linux-6.1.y 344a09659766 e2826670 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan kernel BUG in submit_bh_wbc
2025/03/14 20:10 linux-6.1.y 344a09659766 e2826670 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan kernel BUG in submit_bh_wbc
2025/03/09 12:38 linux-6.1.y 6ae7ac5c4251 163f510d .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan kernel BUG in submit_bh_wbc
2025/03/09 03:37 linux-6.1.y 6ae7ac5c4251 163f510d .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan kernel BUG in submit_bh_wbc
2025/03/08 04:24 linux-6.1.y 6ae7ac5c4251 7e3bd60d .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan kernel BUG in submit_bh_wbc
2025/03/03 03:55 linux-6.1.y 3a8358583626 c3901742 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan kernel BUG in submit_bh_wbc
2025/02/28 16:20 linux-6.1.y 3a8358583626 67cf5345 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan kernel BUG in submit_bh_wbc
2025/02/23 10:41 linux-6.1.y 3a8358583626 d34966d1 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan kernel BUG in submit_bh_wbc
2025/02/22 12:12 linux-6.1.y 3a8358583626 d34966d1 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan kernel BUG in submit_bh_wbc
2025/02/22 01:17 linux-6.1.y 3a8358583626 d34966d1 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan kernel BUG in submit_bh_wbc
2025/02/20 02:42 linux-6.1.y 0cbb5f65e52f b257a9b7 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan kernel BUG in submit_bh_wbc
2025/02/19 09:50 linux-6.1.y 0cbb5f65e52f 9a14138f .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan kernel BUG in submit_bh_wbc
2025/02/19 05:58 linux-6.1.y 0cbb5f65e52f 9a14138f .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan kernel BUG in submit_bh_wbc
2025/02/18 11:36 linux-6.1.y 0cbb5f65e52f c37c7249 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan kernel BUG in submit_bh_wbc
2025/05/30 09:53 linux-6.1.y da3c5173c55f 3d2f584d .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 kernel BUG in submit_bh_wbc
2025/05/24 20:35 linux-6.1.y da3c5173c55f ed351ea7 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 kernel BUG in submit_bh_wbc
2025/05/11 00:34 linux-6.1.y 02b72ccb5f9d 77908e5f .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 kernel BUG in submit_bh_wbc
2025/04/18 05:33 linux-6.1.y 420102835862 2a20f901 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 kernel BUG in submit_bh_wbc
2025/04/16 19:10 linux-6.1.y 420102835862 a95239b1 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 kernel BUG in submit_bh_wbc
2025/04/08 18:11 linux-6.1.y 3dfebb87d7eb a775275d .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 kernel BUG in submit_bh_wbc
2025/03/31 18:46 linux-6.1.y 8e60a714ba3b d3999433 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 kernel BUG in submit_bh_wbc
2025/03/27 14:34 linux-6.1.y 344a09659766 6c09fb82 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 kernel BUG in submit_bh_wbc
2025/03/12 10:11 linux-6.1.y 6ae7ac5c4251 ee70e6db .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 kernel BUG in submit_bh_wbc
2025/03/12 09:04 linux-6.1.y 6ae7ac5c4251 ee70e6db .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 kernel BUG in submit_bh_wbc
2025/03/10 23:49 linux-6.1.y 6ae7ac5c4251 16256247 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 kernel BUG in submit_bh_wbc
2025/03/09 16:34 linux-6.1.y 6ae7ac5c4251 163f510d .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 kernel BUG in submit_bh_wbc
2025/03/08 18:54 linux-6.1.y 6ae7ac5c4251 7e3bd60d .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 kernel BUG in submit_bh_wbc
2025/03/02 20:15 linux-6.1.y 3a8358583626 c3901742 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 kernel BUG in submit_bh_wbc
2025/03/01 00:06 linux-6.1.y 3a8358583626 67cf5345 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 kernel BUG in submit_bh_wbc
2025/02/21 01:41 linux-6.1.y 0cbb5f65e52f 0808a665 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 kernel BUG in submit_bh_wbc
2024/07/26 16:49 linux-6.1.y c18e82d3ee44 46eb10b7 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 kernel BUG in submit_bh_wbc
* Struck through repros no longer work on HEAD.