syzbot


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: 1549d, last: 15h07m
Similar bugs (13)
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 9d17h 2191d 26/26 fixed on 2024/04/10 03:59
android-49 kernel BUG at fs/buffer.c:LINE! 5 2089d 2144d 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 423d 1818d 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 1355d 1809d 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 430d 1244d 0/1 upstream: reported C repro on 2020/11/21 07:48
android-6-1 kernel BUG in __block_commit_write syz error error 1 218d 218d 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 1 6d05h 90d 0/2 upstream: reported C repro on 2024/01/19 10:04
android-5-10 kernel BUG in __block_commit_write 1 218d 218d 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 2 29d 92d 0/2 premoderation: reported syz repro on 2024/01/17 04:07
linux-6.1 kernel BUG in submit_bh_wbc origin:upstream C 16 1d07h 379d 0/3 upstream: reported C repro on 2023/04/04 23:04
linux-5.15 kernel BUG in submit_bh_wbc origin:upstream C error 8 41d 319d 0/3 upstream: reported C repro on 2023/06/04 13:30
upstream kernel BUG in submit_bh_wbc nilfs C done 2 8d04h 3d20h 25/26 upstream: reported C repro on 2024/04/15 00:11
android-6-1 kernel BUG in submit_bh_wbc missing-backport origin:lts C done done 61 1d03h 308d 0/2 upstream: reported C repro on 2023/06/15 00:20
Last patch testing requests (10)
Created Duration User Patch Repo Result
2024/02/29 12:48 16m retest repro android12-5.4 report log
2024/02/29 12:48 22m retest repro android12-5.4 report log
2024/02/29 12:48 5m retest repro android12-5.4 report log
2024/02/29 12:48 5m retest repro android12-5.4 report log
2024/02/10 06:44 15m retest repro android12-5.4 report log
2024/02/10 06:44 14m retest repro android12-5.4 report log
2024/02/10 06:44 34m retest repro android12-5.4 report log
2024/02/10 06:44 19m retest repro android12-5.4 report log
2024/01/04 13:25 13m retest repro android12-5.4 report log
2024/01/04 13:25 17m retest repro android12-5.4 OK log

Sample crash report:
------------[ cut here ]------------
kernel BUG at fs/buffer.c:3027!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 1 PID: 359 Comm: kmmpd-loop0 Not tainted 5.4.265-syzkaller-00002-g50cb39f34248 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024
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 30 a0 ea ff e9 05 fe ff ff e8 86 cd ba ff 0f 0b e8 7f cd ba ff <0f> 0b e8 78 cd ba ff 0f 0b e8 71 cd ba ff 0f 0b e8 6a cd ba ff 0f
RSP: 0018:ffff8881dba17bf0 EFLAGS: 00010293
RAX: ffffffff81a97941 RBX: 0000000000000000 RCX: ffff8881db81af40
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000003800 R08: ffffffff81a971b4 R09: ffffed103b902351
R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000
R13: ffff8881dc811a80 R14: 0000000000000001 R15: 0000000000000000
FS:  0000000000000000(0000) GS:ffff8881f6f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f0f6103501d CR3: 00000001dbced000 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+0x34f/0xa10 fs/ext4/mmp.c:171
 kthread+0x2da/0x360 kernel/kthread.c:288
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:354
Modules linked in:
---[ end trace 6865494894117dfa ]---
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 30 a0 ea ff e9 05 fe ff ff e8 86 cd ba ff 0f 0b e8 7f cd ba ff <0f> 0b e8 78 cd ba ff 0f 0b e8 71 cd ba ff 0f 0b e8 6a cd ba ff 0f
RSP: 0018:ffff8881dba17bf0 EFLAGS: 00010293
RAX: ffffffff81a97941 RBX: 0000000000000000 RCX: ffff8881db81af40
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000003800 R08: ffffffff81a971b4 R09: ffffed103b902351
R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000
R13: ffff8881dc811a80 R14: 0000000000000001 R15: 0000000000000000
FS:  0000000000000000(0000) GS:ffff8881f6f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f0f6103501d CR3: 00000001eda5b000 CR4: 00000000003406a0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400

Crashes (176):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
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
2023/10/16 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
2023/09/16 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
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
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
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
2024/04/18 05:13 android12-5.4 2d5d8240a7cb acc528cb .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan kernel BUG in submit_bh_wbc
2024/04/17 13:06 android12-5.4 2d5d8240a7cb 18f6e127 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan kernel BUG in submit_bh_wbc
2024/04/17 08:48 android12-5.4 2d5d8240a7cb 18f6e127 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan kernel BUG in submit_bh_wbc
2024/04/17 05:48 android12-5.4 2d5d8240a7cb 18f6e127 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan kernel BUG in submit_bh_wbc
2024/04/16 22:52 android12-5.4 2d5d8240a7cb 18f6e127 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan kernel BUG in submit_bh_wbc
2024/04/16 21:26 android12-5.4 2d5d8240a7cb 18f6e127 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan kernel BUG in submit_bh_wbc
2024/04/16 17:36 android12-5.4 2d5d8240a7cb 18f6e127 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan kernel BUG in submit_bh_wbc
2024/04/14 10:38 android12-5.4 d0d34dcb02cc c8349e48 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan kernel BUG in submit_bh_wbc
2024/04/13 15:09 android12-5.4 d0d34dcb02cc c8349e48 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan kernel BUG in submit_bh_wbc
2024/04/13 00:37 android12-5.4 d0d34dcb02cc c8349e48 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan kernel BUG in submit_bh_wbc
2024/04/12 16:11 android12-5.4 d0d34dcb02cc c8349e48 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan kernel BUG in submit_bh_wbc
2024/04/12 10:45 android12-5.4 d0d34dcb02cc 27de0a5c .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan kernel BUG in submit_bh_wbc
2024/04/08 11:08 android12-5.4 d0d34dcb02cc ca620dd8 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan kernel BUG in submit_bh_wbc
2024/04/07 23:37 android12-5.4 d0d34dcb02cc ca620dd8 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan kernel BUG in submit_bh_wbc
2024/04/07 20:28 android12-5.4 d0d34dcb02cc ca620dd8 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan kernel BUG in submit_bh_wbc
2024/04/07 13:16 android12-5.4 d0d34dcb02cc ca620dd8 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan kernel BUG in submit_bh_wbc
2024/04/06 12:58 android12-5.4 d0d34dcb02cc ca620dd8 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan kernel BUG in submit_bh_wbc
2024/04/06 09:10 android12-5.4 d0d34dcb02cc ca620dd8 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan kernel BUG in submit_bh_wbc
2024/04/05 12:57 android12-5.4 d0d34dcb02cc 77230c29 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan kernel BUG in submit_bh_wbc
2024/04/05 06:34 android12-5.4 d0d34dcb02cc 0ee3535e .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan kernel BUG in submit_bh_wbc
2024/04/04 13:02 android12-5.4 d0d34dcb02cc 0ee3535e .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan kernel BUG in submit_bh_wbc
2024/04/03 09:35 android12-5.4 d0d34dcb02cc 7925100d .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan kernel BUG in submit_bh_wbc
2024/03/26 19:41 android12-5.4 43a5ead9254d 454571b6 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan kernel BUG in submit_bh_wbc
2024/03/25 23:38 android12-5.4 43a5ead9254d bcd9b39f .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan kernel BUG in submit_bh_wbc
2024/03/21 06:09 android12-5.4 43a5ead9254d 6753db5c .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan kernel BUG in submit_bh_wbc
2024/03/19 19:40 android12-5.4 43a5ead9254d e104824c .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan kernel BUG in submit_bh_wbc
2024/03/18 13:00 android12-5.4 43a5ead9254d baa80228 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan kernel BUG in submit_bh_wbc
2024/03/08 15:45 android12-5.4 43a5ead9254d 8e75c913 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan kernel BUG in submit_bh_wbc
2024/02/14 07:59 android12-5.4 1b3143b9b166 d902085f .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan kernel BUG in submit_bh_wbc
2024/01/27 06:41 android12-5.4 4d7b888b5774 cc4a4020 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan kernel BUG in submit_bh_wbc
2024/01/20 18:08 android12-5.4 9ca091c99214 9bd8dcda .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan kernel BUG in submit_bh_wbc
2024/01/12 00:58 android12-5.4 57a39998c138 dda5a988 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan kernel BUG in submit_bh_wbc
2023/12/07 09:45 android12-5.4 1303f659c2b1 e3299f55 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan kernel BUG in submit_bh_wbc
2023/12/01 14:16 android12-5.4 891e39829ab7 f819d6f7 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan kernel BUG in submit_bh_wbc
2023/11/17 20:02 android12-5.4 2ac128c04e33 cb976f63 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan kernel BUG in submit_bh_wbc
2023/11/07 21:02 android12-5.4 2ac128c04e33 83211397 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan kernel BUG in submit_bh_wbc
2023/11/04 16:34 android12-5.4 2ac128c04e33 500bfdc4 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan kernel BUG in submit_bh_wbc
2023/11/03 23:58 android12-5.4 2ac128c04e33 500bfdc4 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan kernel BUG in submit_bh_wbc
2023/10/26 18:01 android12-5.4 65fc90b61bc7 23afc60f .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan kernel BUG in submit_bh_wbc
2023/10/25 09:19 android12-5.4 65fc90b61bc7 17e6d526 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan kernel BUG in submit_bh_wbc
2023/10/24 04:39 android12-5.4 0b12fe01d7ab af8d2e46 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan kernel BUG in submit_bh_wbc
2023/10/16 04:56 android12-5.4 5f1cbd78af59 f757a323 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan kernel BUG in submit_bh_wbc
2023/10/15 21:32 android12-5.4 5f1cbd78af59 f757a323 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan kernel BUG in submit_bh_wbc
2023/10/12 03:20 android12-5.4 5f1cbd78af59 83165b57 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan kernel BUG in submit_bh_wbc
2023/10/08 03:58 android12-5.4 5f1cbd78af59 5e837c76 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan kernel BUG in submit_bh_wbc
2023/10/01 06:11 android12-5.4 5f1cbd78af59 8e26a358 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan kernel BUG in submit_bh_wbc
2023/09/24 08:45 android12-5.4 19cff29fe49c 0b6a67ac .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan kernel BUG in submit_bh_wbc
2023/09/24 06:53 android12-5.4 19cff29fe49c 0b6a67ac .config console log report info [disk image] [vmlinux] [kernel image] 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.