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kernel BUG at fs/buffer.c:LINE!

Status: upstream: reported C repro on 2020/01/21 13:12
Subsystems: ext4
[Documentation on labels]
Reported-by: syzbot+bf9c89ab867a402aa9bb@syzkaller.appspotmail.com
First crash: 1849d, last: 3h28m
▶ ▼ Similar bugs (18)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
upstream kernel BUG at fs/buffer.c:LINE! nilfs C done error 567 310d 2491d 25/28 fixed on 2024/04/10 03:59
android-49 kernel BUG at fs/buffer.c:LINE! 5 2390d 2445d 0/3 auto-closed as invalid on 2019/02/22 13:09
linux-4.14 kernel BUG at fs/buffer.c:LINE! C error 59 724d 2118d 0/1 upstream: reported C repro on 2019/04/27 19:47
linux-4.19 kernel BUG at fs/buffer.c:LINE! syz done 23 1656d 2109d 1/1 fixed on 2020/09/01 18:34
linux-4.19 kernel BUG at fs/buffer.c:LINE! (2) udf ext4 C error 31 731d 1545d 0/1 upstream: reported C repro on 2020/11/21 07:48
linux-6.1 kernel BUG in mark_buffer_dirty_inode 1 34d 34d 0/3 upstream: reported on 2025/01/10 01:10
android-6-1 kernel BUG in mark_buffer_dirty_inode syz inconclusive 3 59d 128d 0/2 premoderation: reported syz repro on 2024/10/08 01:07
android-6-1 kernel BUG in __block_commit_write syz error error 1 518d 518d 0/2 auto-obsoleted due to no activity on 2023/12/12 18:06
android-6-1 kernel BUG in __block_commit_write (2) origin:upstream C error error 1 48d 391d 0/2 upstream: reported C repro on 2024/01/19 10:04
android-5-10 kernel BUG in __block_commit_write 1 519d 519d 0/2 auto-obsoleted due to no activity on 2023/12/12 11:41
android-5-10 kernel BUG in __block_commit_write (2) syz error 2 68d 393d 0/2 premoderation: reported syz repro on 2024/01/17 04:07
linux-6.1 kernel BUG in submit_bh_wbc origin:lts-only C done 19 252d 680d 3/3 fixed on 2024/07/20 06:27
upstream kernel BUG in submit_bh_wbc (2) udf C done 123 188d 294d 27/28 fixed on 2024/08/14 03:44
linux-6.1 kernel BUG in submit_bh_wbc (2) origin:lts-only C 138 1d13h 201d 0/3 upstream: reported C repro on 2024/07/26 16:49
upstream kernel BUG in submit_bh_wbc (3) nilfs fs C done 18 115d 122d 28/28 fixed on 2024/11/12 23:31
linux-5.15 kernel BUG in submit_bh_wbc C error 8 341d 619d 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 295d 304d 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 1536 1d02h 609d 0/2 upstream: reported C repro on 2023/06/15 00:20
▶ ▼ Last patch testing requests (10)
Created Duration User Patch Repo Result
2025/01/02 07:04 2m retest repro android12-5.4 error
2024/12/27 17:14 9m retest repro android12-5.4 error
2024/12/27 17:14 7m retest repro android12-5.4 error
2024/12/27 17:14 6m retest repro android12-5.4 error
2024/12/27 17:14 2m retest repro android12-5.4 error
2024/12/27 17:14 51m retest repro android12-5.4 error
2024/12/04 19:40 5m retest repro android12-5.4 error
2024/12/04 19:40 1m retest repro android12-5.4 error
2024/12/04 19:40 2m retest repro android12-5.4 error
2024/12/04 19:40 2m retest repro android12-5.4 error

Sample crash report:
------------[ cut here ]------------
kernel BUG at fs/buffer.c:3027!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 1 PID: 358 Comm: kmmpd-loop0 Not tainted 5.4.274-syzkaller-00016-gdd432c37afcd #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024
RIP: 0010:submit_bh_wbc+0x831/0x850 fs/buffer.c:3027
Code: 10 80 e1 07 80 c1 03 38 c1 0f 8c 14 fe ff ff 48 8b 7c 24 10 e8 00 8d ea ff e9 05 fe ff ff e8 16 a8 ba ff 0f 0b e8 0f a8 ba ff <0f> 0b e8 08 a8 ba ff 0f 0b e8 01 a8 ba ff 0f 0b e8 fa a7 ba ff 0f
RSP: 0018:ffff8881db9e7bf0 EFLAGS: 00010293
RAX: ffffffff81a99411 RBX: 0000000000000000 RCX: ffff8881dbd13f00
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000003800 R08: ffffffff81a98c84 R09: ffffed103d1f6f90
R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000
R13: ffff8881e8fb7c78 R14: 0000000000000001 R15: 0000000000000000
FS:  0000000000000000(0000) GS:ffff8881f6f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f3bbd515db8 CR3: 00000001dbc51000 CR4: 00000000003406a0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 submit_bh+0x21/0x30 fs/buffer.c:3076
 write_mmp_block+0x3ff/0x5b0 fs/ext4/mmp.c:55
 kmmpd+0x7de/0xa10 fs/ext4/mmp.c:246
 kthread+0x2da/0x360 kernel/kthread.c:288
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:354
Modules linked in:
---[ end trace 6edb76f276b7be42 ]---
RIP: 0010:submit_bh_wbc+0x831/0x850 fs/buffer.c:3027
Code: 10 80 e1 07 80 c1 03 38 c1 0f 8c 14 fe ff ff 48 8b 7c 24 10 e8 00 8d ea ff e9 05 fe ff ff e8 16 a8 ba ff 0f 0b e8 0f a8 ba ff <0f> 0b e8 08 a8 ba ff 0f 0b e8 01 a8 ba ff 0f 0b e8 fa a7 ba ff 0f
RSP: 0018:ffff8881db9e7bf0 EFLAGS: 00010293
RAX: ffffffff81a99411 RBX: 0000000000000000 RCX: ffff8881dbd13f00
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000003800 R08: ffffffff81a98c84 R09: ffffed103d1f6f90
R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000
R13: ffff8881e8fb7c78 R14: 0000000000000001 R15: 0000000000000000
FS:  0000000000000000(0000) GS:ffff8881f6f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f3bbd515db8 CR3: 00000001dbc51000 CR4: 00000000003406a0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400

Crashes (1280):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2024/06/11 03:08 android12-5.4 dd432c37afcd 048c640a .config strace log report syz / log C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-android-5-4-kasan kernel BUG in submit_bh_wbc
2024/03/02 21:52 android12-5.4 50cb39f34248 25905f5d .config strace log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-android-5-4-kasan kernel BUG in submit_bh_wbc
2023/11/03 07:35 android12-5.4 2ac128c04e33 c4ac074c .config strace log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-android-5-4-kasan kernel BUG in submit_bh_wbc
2023/09/16 01:46 android12-5.4 19cff29fe49c 0b6a67ac .config strace log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-android-5-4-kasan kernel BUG in submit_bh_wbc
2023/06/26 11:23 android12-5.4 f5af01b60cfa 79782afc .config strace log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-android-5-4-kasan kernel BUG in submit_bh_wbc
2023/03/15 20:59 android12-5.4 f4e4be09c27c 18b58603 .config strace log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-android-5-4-kasan kernel BUG in submit_bh_wbc
2022/11/22 20:15 android12-5.4 c80a5b2e7f63 9da37ae8 .config strace log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-android-5-4-kasan kernel BUG in submit_bh_wbc
2022/10/13 20:49 android12-5.4 35e910266d44 adf90437 .config strace log report syz C [disk image] [vmlinux] [mounted in repro] ci2-android-5-4-kasan kernel BUG in submit_bh_wbc
2022/05/14 15:55 android12-5.4 ee52e8cb3015 744a39e2 .config strace log report syz C ci2-android-5-4-kasan kernel BUG in submit_bh_wbc
2020/11/29 09:15 android12-5.4 e37aca80313f a0092f9d .config console log report syz C ci2-android-5-4-kasan
2022/08/24 03:29 android12-5.4 f3c75e616e3f cea8b0f7 .config console log report syz C ci2-android-5-4-kasan kernel BUG in __block_commit_write
2021/03/27 13:10 android12-5.4 7af03784d889 a8529b82 .config console log report syz C ci2-android-5-4-kasan kernel BUG in __block_commit_write
2022/09/03 09:06 android12-5.4 f0306959ab7c 49e94a20 .config console log report syz [disk image] [vmlinux] ci2-android-5-4-kasan kernel BUG in submit_bh_wbc
2020/02/11 15:47 https://android.googlesource.com/kernel/common android-5.4 0dba8e724663 084454ae .config console log report syz ci2-android-5-4-kasan
2025/02/13 09:25 android12-5.4 39762b7a60e9 b27c2402 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan kernel BUG in submit_bh_wbc
2025/02/13 07:28 android12-5.4 39762b7a60e9 b27c2402 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan kernel BUG in submit_bh_wbc
2025/02/12 18:23 android12-5.4 39762b7a60e9 b27c2402 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan kernel BUG in submit_bh_wbc
2025/02/12 11:39 android12-5.4 39762b7a60e9 b27c2402 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan kernel BUG in submit_bh_wbc
2025/02/12 06:35 android12-5.4 39762b7a60e9 f2baddf5 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan kernel BUG in submit_bh_wbc
2025/02/11 20:08 android12-5.4 39762b7a60e9 f2baddf5 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan kernel BUG in submit_bh_wbc
2025/02/10 10:56 android12-5.4 cb850525fc3e ef44b750 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan kernel BUG in submit_bh_wbc
2025/02/09 17:29 android12-5.4 cb850525fc3e ef44b750 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan kernel BUG in submit_bh_wbc
2025/02/09 12:57 android12-5.4 cb850525fc3e ef44b750 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan kernel BUG in submit_bh_wbc
2025/02/08 15:56 android12-5.4 cb850525fc3e ef44b750 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan kernel BUG in submit_bh_wbc
2025/02/06 10:30 android12-5.4 cb850525fc3e 577d049b .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan kernel BUG in submit_bh_wbc
2025/02/06 08:38 android12-5.4 cb850525fc3e 577d049b .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan kernel BUG in submit_bh_wbc
2025/02/04 14:37 android12-5.4 3f2c17e79750 8f267cef .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan kernel BUG in submit_bh_wbc
2025/02/04 08:35 android12-5.4 3f2c17e79750 8f267cef .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan kernel BUG in submit_bh_wbc
2025/02/03 23:34 android12-5.4 3f2c17e79750 a21a8419 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan kernel BUG in submit_bh_wbc
2025/02/03 18:20 android12-5.4 3f2c17e79750 a21a8419 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan kernel BUG in submit_bh_wbc
2025/02/03 12:46 android12-5.4 3f2c17e79750 a21a8419 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan kernel BUG in submit_bh_wbc
2025/02/03 04:17 android12-5.4 3f2c17e79750 568559e4 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan kernel BUG in submit_bh_wbc
2025/02/03 02:58 android12-5.4 3f2c17e79750 568559e4 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan kernel BUG in submit_bh_wbc
2025/02/02 14:54 android12-5.4 3f2c17e79750 568559e4 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan kernel BUG in submit_bh_wbc
2025/02/02 09:51 android12-5.4 3f2c17e79750 568559e4 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan kernel BUG in submit_bh_wbc
2025/02/02 07:03 android12-5.4 3f2c17e79750 568559e4 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan kernel BUG in submit_bh_wbc
2025/01/31 13:06 android12-5.4 49530c73f82d 4c6ac32f .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan kernel BUG in submit_bh_wbc
2025/01/31 12:49 android12-5.4 49530c73f82d 4c6ac32f .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan kernel BUG in submit_bh_wbc
2025/01/30 10:15 android12-5.4 49530c73f82d afe4eff5 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan kernel BUG in submit_bh_wbc
2025/01/29 13:18 android12-5.4 49530c73f82d 136953f1 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan kernel BUG in submit_bh_wbc
2025/01/28 23:33 android12-5.4 49530c73f82d f5427d7c .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan kernel BUG in submit_bh_wbc
2025/01/28 10:21 android12-5.4 49530c73f82d 18070896 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan kernel BUG in submit_bh_wbc
2025/01/27 10:19 android12-5.4 49530c73f82d d99a33ad .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan kernel BUG in submit_bh_wbc
2025/01/25 19:10 android12-5.4 49530c73f82d 9fbd772e .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan kernel BUG in submit_bh_wbc
2024/07/03 05:57 android12-5.4 58de09405d1e 1ecfa2d8 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan kernel BUG in submit_bh_wbc
2024/07/02 09:55 android12-5.4 58de09405d1e 07f0a0a0 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan kernel BUG in submit_bh_wbc
2024/07/02 09:53 android12-5.4 58de09405d1e 07f0a0a0 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan kernel BUG in submit_bh_wbc
2024/07/01 22:12 android12-5.4 58de09405d1e b294e901 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan kernel BUG in submit_bh_wbc
2024/07/01 20:18 android12-5.4 4275fce9fe94 b294e901 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan kernel BUG in submit_bh_wbc
2024/07/01 14:25 android12-5.4 4275fce9fe94 b294e901 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan kernel BUG in submit_bh_wbc
2024/07/01 09:29 android12-5.4 4275fce9fe94 757f06b1 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan kernel BUG in submit_bh_wbc
2024/07/01 08:15 android12-5.4 4275fce9fe94 757f06b1 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan kernel BUG in submit_bh_wbc
2024/07/01 06:33 android12-5.4 4275fce9fe94 757f06b1 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan kernel BUG in submit_bh_wbc
2024/07/01 04:00 android12-5.4 4275fce9fe94 757f06b1 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan kernel BUG in submit_bh_wbc
2024/07/01 02:49 android12-5.4 4275fce9fe94 757f06b1 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan kernel BUG in submit_bh_wbc
2024/06/30 20:38 android12-5.4 4275fce9fe94 757f06b1 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan kernel BUG in submit_bh_wbc
2024/06/30 17:00 android12-5.4 4275fce9fe94 757f06b1 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan kernel BUG in submit_bh_wbc
2024/06/30 11:54 android12-5.4 4275fce9fe94 757f06b1 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan kernel BUG in submit_bh_wbc
2024/06/30 10:13 android12-5.4 4275fce9fe94 757f06b1 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan kernel BUG in submit_bh_wbc
2024/06/30 07:08 android12-5.4 4275fce9fe94 757f06b1 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan kernel BUG in submit_bh_wbc
2024/06/29 19:55 android12-5.4 4275fce9fe94 757f06b1 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan kernel BUG in submit_bh_wbc
2024/06/29 15:17 android12-5.4 4275fce9fe94 757f06b1 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan kernel BUG in submit_bh_wbc
2024/06/29 06:58 android12-5.4 4275fce9fe94 757f06b1 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan kernel BUG in submit_bh_wbc
2024/01/17 05:04 android12-5.4 9ca091c99214 2a7bcc7f .config console log report syz [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-android-5-4-kasan kernel BUG in __block_commit_write
2023/10/16 06:17 android12-5.4 5f1cbd78af59 f757a323 .config strace log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-android-5-4-kasan kernel BUG in submit_bh_wbc
2023/08/10 13:13 android12-5.4 fed9191809bc da3c3ef8 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan kernel BUG in mark_buffer_dirty_inode
2022/09/19 23:33 android12-5.4 f3665979a8e7 dd9a85ff .config console log report info [disk image] [vmlinux] ci2-android-5-4-kasan kernel BUG in __block_commit_write
2020/09/23 19:40 https://android.googlesource.com/kernel/common android-5.4 63d1c2f0b547 54289b08 .config console log report info ci2-android-5-4-kasan
2020/01/21 13:11 https://android.googlesource.com/kernel/common android-5.4 b0b02162a4b8 8eda0b95 .config console log report ci2-android-5-4-kasan
* Struck through repros no longer work on HEAD.