kernel BUG at fs/buffer.c:LINE!

Status: upstream: reported C repro on 2019/04/27 19:47
Reported-by: syzbot+f7cb69e1859d0347797f@syzkaller.appspotmail.com
First crash: 2658d, last: 1263d
Fix bisection: failed (error log, bisect log)
  
▶ ▼ Similar bugs (16)
Kernel Title Rank 🛈 Repro Cause bisect Fix bisect Count Last Reported Patched Status
upstream kernel BUG at fs/buffer.c:LINE! nilfs -1 syz, C done error 567 849d 3031d 25/29 fixed on 2024/04/10 03:59
android-49 kernel BUG at fs/buffer.c:LINE! -1 5 2929d 2984d 0/3 auto-closed as invalid on 2019/02/22 13:09
linux-4.19 kernel BUG at fs/buffer.c:LINE! -1 syz done 23 2195d 2649d 1/1 fixed on 2020/09/01 18:34
linux-4.19 kernel BUG at fs/buffer.c:LINE! (2) udf ext4 -1 syz, C error 31 1270d 2084d 0/1 upstream: reported C repro on 2020/11/21 07:48
android-54 kernel BUG at fs/buffer.c:LINE! ext4 -1 syz, C 4762 439d 2389d 0/2 upstream: reported C repro on 2020/01/21 13:12
android-6-1 kernel BUG in __block_commit_write -1 syz error error 1 1058d 1058d 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 missing-backport -1 syz, C error error 1 153d 930d 0/2 upstream: reported C repro on 2024/01/19 10:04
android-5-10 kernel BUG in __block_commit_write -1 1 1058d 1058d 0/2 auto-obsoleted due to no activity on 2023/12/12 11:41
android-5-10 kernel BUG in __block_commit_write (2) -1 syz error 2 112d 932d 0/2 premoderation: reported syz repro on 2024/01/17 04:07
linux-6.1 kernel BUG in submit_bh_wbc origin:lts-only -1 syz, C done 19 791d 1219d 3/3 fixed on 2024/07/20 06:27
upstream kernel BUG in submit_bh_wbc (2) udf -1 syz, C done 123 728d 833d 27/29 fixed on 2024/08/14 03:44
linux-6.1 kernel BUG in submit_bh_wbc (2) origin:lts-only -1 syz, C inconclusive 279 7d08h 741d 0/3 upstream: reported C repro on 2024/07/26 16:49
upstream kernel BUG in submit_bh_wbc (3) nilfs fs -1 syz, C done 18 654d 661d 28/29 fixed on 2024/11/12 23:31
linux-5.15 kernel BUG in submit_bh_wbc -1 syz, C error 8 881d 1159d 0/3 auto-obsoleted due to no activity on 2024/06/16 14:58
upstream kernel BUG in submit_bh_wbc nilfs -1 syz, C done 10 834d 843d 25/29 fixed on 2024/04/24 18:26
android-6-1 kernel BUG in submit_bh_wbc missing-backport origin:lts -1 syz, C done done 2572 1d08h 1148d 0/2 upstream: reported C repro on 2023/06/15 00:20
▶ ▼ Fix bisection attempts (4)
Created Duration User Patch Repo Result
2020/09/06 15:03 8h16m bisect fix linux-4.14.y error job log
2020/08/07 10:00 41m bisect fix linux-4.14.y OK (0) job log log
2020/04/26 06:03 24m bisect fix linux-4.14.y OK (0) job log log
2020/02/19 03:35 24m bisect fix linux-4.14.y OK (0) job log log

Sample crash report:
EXT4-fs error (device loop4): ext4_fill_super:4382: inode #2: comm syz-executor708: iget: root inode unallocated
EXT4-fs (loop4): get root inode failed
EXT4-fs (loop4): mount failed
EXT4-fs (loop2): mount failed
------------[ cut here ]------------
kernel BUG at fs/buffer.c:3106!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
Modules linked in:
CPU: 1 PID: 8030 Comm: kmmpd-loop4 Not tainted 4.14.295-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022
task: ffff888095e4e280 task.stack: ffff8880977c8000
RIP: 0010:submit_bh_wbc+0x573/0x6f0 fs/buffer.c:3106
RSP: 0018:ffff8880977cfd98 EFLAGS: 00010297
RAX: ffff888095e4e280 RBX: ffff88808df95f18 RCX: 0000000000000000
RDX: 0000000000000000 RSI: 0000000000003800 RDI: 0000000000000001
RBP: ffff8880957fa440 R08: 0000000000000000 R09: 0000000000050414
R10: ffff888095e4eb08 R11: ffff888095e4e280 R12: 0000000000003800
R13: 0000000000000000 R14: 0000000000000001 R15: 00000000ffff9872
FS:  0000000000000000(0000) GS:ffff8880ba500000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fbe4cd52f60 CR3: 00000000a5c83000 CR4: 00000000003406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 write_mmp_block+0x1b4/0x2d0 fs/ext4/mmp.c:55
 kmmpd+0x655/0x990 fs/ext4/mmp.c:246
 kthread+0x30d/0x420 kernel/kthread.c:232
 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:404
Code: 10 c2 ff f0 80 63 01 f7 e9 66 fb ff ff 48 8d 43 10 4c 8d 7b 20 48 89 44 24 08 e9 55 fc ff ff e8 c4 10 c2 ff 0f 0b e8 bd 10 c2 ff <0f> 0b e8 b6 10 c2 ff 0f 0b e8 af 10 c2 ff 0f 0b e8 a8 10 c2 ff 
RIP: submit_bh_wbc+0x573/0x6f0 fs/buffer.c:3106 RSP: ffff8880977cfd98
---[ end trace 8c469a9f1036fe3b ]---

Crashes (59):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2022/10/15 19:17 linux-4.14.y 9d5c0b3a8e1a 67cb024c .config console log report syz C [disk image] [vmlinux] [mounted in repro] ci2-linux-4-14 kernel BUG in submit_bh_wbc
2022/09/03 11:25 linux-4.14.y e548869f356f 49e94a20 .config console log report syz C [disk image] [vmlinux] ci2-linux-4-14 kernel BUG in submit_bh_wbc
2022/05/14 16:20 linux-4.14.y 569d1abf9402 744a39e2 .config console log report syz C ci2-linux-4-14 kernel BUG in submit_bh_wbc
2020/11/10 19:49 linux-4.14.y e98f3c4269fd cca87986 .config console log report syz C ci2-linux-4-14
2020/07/03 04:49 linux-4.14.y b850307b279c f30c14bf .config console log report syz C ci2-linux-4-14
2019/12/18 08:45 linux-4.14.y bfb9e5c03076 64ca0a37 .config console log report syz C ci2-linux-4-14
2019/12/20 06:15 linux-4.14.y bfb9e5c03076 36650b4b .config console log report syz ci2-linux-4-14
2023/02/20 08:20 linux-4.14.y a8ad60f2af58 bcdf85f8 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-4-14 kernel BUG in submit_bh_wbc
2021/04/11 10:17 linux-4.14.y 958e517f4e16 6a81331a .config console log report info ci2-linux-4-14 kernel BUG in __block_commit_write
2020/07/08 10:00 linux-4.14.y b850307b279c 5962a2dc .config console log report ci2-linux-4-14
2020/07/04 05:49 linux-4.14.y b850307b279c 51095195 .config console log report ci2-linux-4-14
2020/06/07 10:14 linux-4.14.y c6db52a88798 2c2b926c .config console log report ci2-linux-4-14
2020/05/21 12:54 linux-4.14.y a41ba30d9df2 4afdfa20 .config console log report ci2-linux-4-14
2020/05/18 10:58 linux-4.14.y ab9dfda23248 24d91142 .config console log report ci2-linux-4-14
2020/05/07 15:34 linux-4.14.y d71f695ce745 98cbd87b .config console log report ci2-linux-4-14
2020/05/05 13:19 linux-4.14.y 773e2b1cd56a 4b76dd25 .config console log report ci2-linux-4-14
2020/04/28 09:38 linux-4.14.y 050272a0423e 0ce7569e .config console log report ci2-linux-4-14
2020/03/27 06:03 linux-4.14.y 01364dad1d45 6d25c5a0 .config console log report ci2-linux-4-14
2020/02/28 15:48 linux-4.14.y 98db2bf27b9e c88c7b75 .config console log report ci2-linux-4-14
2020/02/19 15:38 linux-4.14.y 98db2bf27b9e 47fae6e9 .config console log report ci2-linux-4-14
2020/01/20 03:35 linux-4.14.y c1141b3aab36 0342f8c7 .config console log report ci2-linux-4-14
2019/12/27 12:32 linux-4.14.y e1f7d50ae3a3 be5c2c81 .config console log report ci2-linux-4-14
2019/12/26 04:01 linux-4.14.y e1f7d50ae3a3 be5c2c81 .config console log report ci2-linux-4-14
2019/12/23 11:34 linux-4.14.y e1f7d50ae3a3 be5c2c81 .config console log report ci2-linux-4-14
2019/11/20 14:05 linux-4.14.y 775d01b65b5d 432c7650 .config console log report ci2-linux-4-14
2019/10/12 13:29 linux-4.14.y e132c8d7b58d 426631dd .config console log report ci2-linux-4-14
2019/09/30 07:20 linux-4.14.y f6e27dbb1afa c1ad5441 .config console log report ci2-linux-4-14
2019/09/29 12:23 linux-4.14.y f6e27dbb1afa c1ad5441 .config console log report ci2-linux-4-14
2019/09/26 21:09 linux-4.14.y f6e27dbb1afa 2f1548bc .config console log report ci2-linux-4-14
2019/09/26 08:23 linux-4.14.y f6e27dbb1afa 24d405a3 .config console log report ci2-linux-4-14
2019/09/22 00:11 linux-4.14.y f6e27dbb1afa d96e88f3 .config console log report ci2-linux-4-14
2019/09/02 11:52 linux-4.14.y 01fd1694b93c db7c31ca .config console log report ci2-linux-4-14
2019/08/28 02:08 linux-4.14.y b5260801526c fd37b39e .config console log report ci2-linux-4-14
2019/08/27 10:41 linux-4.14.y b5260801526c d21c5d9d .config console log report ci2-linux-4-14
2019/08/25 23:51 linux-4.14.y b5260801526c d21c5d9d .config console log report ci2-linux-4-14
2019/08/20 16:54 linux-4.14.y 45f092f9e9cb cfc9868f .config console log report ci2-linux-4-14
2019/08/20 00:55 linux-4.14.y 45f092f9e9cb ae348fb7 .config console log report ci2-linux-4-14
2019/08/19 15:50 linux-4.14.y 45f092f9e9cb b8ceabfc .config console log report ci2-linux-4-14
2019/08/18 09:12 linux-4.14.y 45f092f9e9cb 55bf8926 .config console log report ci2-linux-4-14
2019/08/08 01:11 linux-4.14.y b19ffe6e7205 e6ebef88 .config console log report ci2-linux-4-14
2019/08/07 15:11 linux-4.14.y b19ffe6e7205 cdde7486 .config console log report ci2-linux-4-14
2019/08/04 20:07 linux-4.14.y 7d80e1218adf 6affd8e8 .config console log report ci2-linux-4-14
2019/08/04 19:03 linux-4.14.y 7d80e1218adf 6affd8e8 .config console log report ci2-linux-4-14
2019/08/02 02:23 linux-4.14.y 10d6aa565d05 835dffe7 .config console log report ci2-linux-4-14
2019/07/28 20:26 linux-4.14.y ff33472c282e c85e1c5b .config console log report ci2-linux-4-14
2019/07/28 14:04 linux-4.14.y ff33472c282e c85e1c5b .config console log report ci2-linux-4-14
2019/07/27 20:46 linux-4.14.y ff33472c282e c85e1c5b .config console log report ci2-linux-4-14
2019/07/26 00:29 linux-4.14.y ff33472c282e 0d7a1249 .config console log report ci2-linux-4-14
2019/07/20 17:40 linux-4.14.y aea8526edf59 1656845f .config console log report ci2-linux-4-14
2019/07/18 13:42 linux-4.14.y aea8526edf59 7bb222f7 .config console log report ci2-linux-4-14
2019/07/02 19:06 linux-4.14.y f4cc0ed9b2c7 5f175e9c .config console log report ci2-linux-4-14
2019/07/01 13:27 linux-4.14.y f4cc0ed9b2c7 907bf746 .config console log report ci2-linux-4-14
2019/06/27 22:01 linux-4.14.y f4cc0ed9b2c7 7509bf36 .config console log report ci2-linux-4-14
2019/06/26 07:45 linux-4.14.y bc2bccef19ee 0a8d1a96 .config console log report ci2-linux-4-14
2019/06/25 00:12 linux-4.14.y a5758c531177 82c13b6b .config console log report ci2-linux-4-14
2019/06/17 07:50 linux-4.14.y a74d0e937a3a 442206d7 .config console log report ci2-linux-4-14
2019/05/01 07:21 linux-4.14.y fa5941f45d7e 618456b4 .config console log report ci2-linux-4-14
2019/05/01 04:21 linux-4.14.y fa5941f45d7e 618456b4 .config console log report ci2-linux-4-14
2019/04/27 18:46 linux-4.14.y fa5941f45d7e b617407b .config console log report ci2-linux-4-14
* Struck through repros no longer work on HEAD.