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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: 1341d, last: 35m
▶ ▼ Similar bugs (10)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
upstream kernel BUG at fs/buffer.c:LINE! nilfs C done error 322 2d16h 1983d 0/25 upstream: reported C repro on 2018/04/19 16:02
android-49 kernel BUG at fs/buffer.c:LINE! 5 1882d 1937d 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 215d 1610d 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 1148d 1601d 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 223d 1036d 0/1 upstream: reported C repro on 2020/11/21 07:48
android-6-1 kernel BUG in __block_commit_write syz 1 10d 10d 0/2 premoderation: reported syz repro on 2023/09/13 18:08
android-5-10 kernel BUG in __block_commit_write 1 10d 10d 0/2 premoderation: reported on 2023/09/13 11:35
linux-6.1 kernel BUG in submit_bh_wbc origin:upstream C 3 11d 172d 0/3 upstream: reported C repro on 2023/04/04 23:04
linux-5.15 kernel BUG in submit_bh_wbc origin:upstream C 1 1d23h 111d 0/3 upstream: reported C repro on 2023/06/04 13:30
android-6-1 kernel BUG in submit_bh_wbc origin:upstream C done 4 29d 101d 0/2 upstream: reported C repro on 2023/06/15 00:20

Sample crash report:
------------[ cut here ]------------
kernel BUG at fs/buffer.c:3027!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 380 Comm: kmmpd-loop0 Not tainted 5.4.249-syzkaller-00002-g19cff29fe49c #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/26/2023
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 50 a4 ea ff e9 05 fe ff ff e8 16 e4 ba ff 0f 0b e8 0f e4 ba ff <0f> 0b e8 08 e4 ba ff 0f 0b e8 01 e4 ba ff 0f 0b e8 fa e3 ba ff 0f
RSP: 0018:ffff8881db4d7bf0 EFLAGS: 00010293
RAX: ffffffff81a95201 RBX: 0000000000000000 RCX: ffff8881dbd58000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000003800 R08: ffffffff81a94a74 R09: ffffed103d373390
R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000
R13: ffff8881e9b99c78 R14: 0000000000000001 R15: 0000000000000000
FS:  0000000000000000(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f1b3609e0f8 CR3: 00000001dbc8e000 CR4: 00000000003406b0
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 e498d88c98618c6b ]---
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 50 a4 ea ff e9 05 fe ff ff e8 16 e4 ba ff 0f 0b e8 0f e4 ba ff <0f> 0b e8 08 e4 ba ff 0f 0b e8 01 e4 ba ff 0f 0b e8 fa e3 ba ff 0f
RSP: 0018:ffff8881db4d7bf0 EFLAGS: 00010293
RAX: ffffffff81a95201 RBX: 0000000000000000 RCX: ffff8881dbd58000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000003800 R08: ffffffff81a94a74 R09: ffffed103d373390
R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000
R13: ffff8881e9b99c78 R14: 0000000000000001 R15: 0000000000000000
FS:  0000000000000000(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f1b36059a50 CR3: 00000001e1553000 CR4: 00000000003406b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400

Crashes (112):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
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
2022/08/24 03:29 android12-5.4 f3c75e616e3f cea8b0f7 .config console log report syz C ci2-android-5-4-kasan kernel BUG in __block_commit_write
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
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
2020/11/29 09:15 android12-5.4 e37aca80313f a0092f9d .config console log report syz C ci2-android-5-4-kasan
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
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
2023/09/14 13:59 android12-5.4 a349c7903997 0b6a67ac .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan kernel BUG in submit_bh_wbc
2023/09/02 00:32 android12-5.4 c83e2462239e 696ea0d2 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan kernel BUG in submit_bh_wbc
2023/08/19 01:51 android12-5.4 effd75159534 d216d8a0 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan kernel BUG in submit_bh_wbc
2023/08/13 16:58 android12-5.4 fed9191809bc 39990d51 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan kernel BUG in submit_bh_wbc
2023/08/11 05:05 android12-5.4 fed9191809bc da3c3ef8 .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
2023/08/10 06:43 android12-5.4 fed9191809bc 13ca4cd6 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan kernel BUG in submit_bh_wbc
2023/08/06 12:28 android12-5.4 fed9191809bc 4ffcc9ef .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan kernel BUG in submit_bh_wbc
2023/07/30 17:15 android12-5.4 ba2c000ce64e 2a0d0f29 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan kernel BUG in submit_bh_wbc
2023/07/22 06:53 android12-5.4 14e059a4e07a abdf9bae .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan kernel BUG in submit_bh_wbc
2023/07/21 06:23 android12-5.4 14e059a4e07a 28847498 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan kernel BUG in submit_bh_wbc
2023/07/20 08:17 android12-5.4 14e059a4e07a 4547cdf9 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan kernel BUG in submit_bh_wbc
2023/07/20 05:46 android12-5.4 14e059a4e07a 4547cdf9 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan kernel BUG in submit_bh_wbc
2023/07/18 16:29 android12-5.4 14e059a4e07a 022df2bb .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan kernel BUG in submit_bh_wbc
2023/07/18 03:51 android12-5.4 14e059a4e07a 20f8b3c2 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan kernel BUG in submit_bh_wbc
2023/07/15 10:05 android12-5.4 6d5c2c1877e5 35d9ecc5 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan kernel BUG in submit_bh_wbc
2023/07/14 17:00 android12-5.4 6d5c2c1877e5 d624500f .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan kernel BUG in submit_bh_wbc
2023/06/30 10:12 android12-5.4 487daef44f9f 01298212 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan kernel BUG in submit_bh_wbc
2023/06/26 13:00 android12-5.4 f5af01b60cfa 79782afc .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan kernel BUG in submit_bh_wbc
2023/06/26 11:08 android12-5.4 f5af01b60cfa 79782afc .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan kernel BUG in submit_bh_wbc
2023/06/21 14:29 android12-5.4 b0a9bcb910ac 79782afc .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan kernel BUG in submit_bh_wbc
2023/05/03 08:46 android12-5.4 cf4e000017b8 48e0a81d .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan kernel BUG in submit_bh_wbc
2023/04/24 20:40 android12-5.4 0108362f3305 fdc18293 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan kernel BUG in submit_bh_wbc
2023/04/22 10:05 android12-5.4 0108362f3305 2b32bd34 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan kernel BUG in submit_bh_wbc
2023/04/21 10:51 android12-5.4 0108362f3305 2b32bd34 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan kernel BUG in submit_bh_wbc
2023/04/19 10:42 android12-5.4 af542fcdb47a 94b4184e .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan kernel BUG in submit_bh_wbc
2023/04/18 10:39 android12-5.4 21086923c1e6 436577a9 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan kernel BUG in submit_bh_wbc
2023/04/16 15:01 android12-5.4 21086923c1e6 ec410564 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan kernel BUG in submit_bh_wbc
2023/04/08 16:13 android12-5.4 21086923c1e6 71147e29 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan kernel BUG in submit_bh_wbc
2023/03/17 13:22 android12-5.4 f4e4be09c27c 18b58603 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan kernel BUG in submit_bh_wbc
2023/03/15 20:42 android12-5.4 f4e4be09c27c 18b58603 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan kernel BUG in submit_bh_wbc
2023/03/07 11:23 android12-5.4 250ac66f1853 ffaa5c55 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan kernel BUG in submit_bh_wbc
2023/02/15 21:37 android12-5.4 6a5ec6cea0cd 6be0f1f5 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan kernel BUG in submit_bh_wbc
2023/01/29 14:21 android12-5.4 ac6c87b5296b 9dfcf09c .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan kernel BUG in submit_bh_wbc
2023/01/29 10:14 android12-5.4 ac6c87b5296b 9dfcf09c .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan kernel BUG in submit_bh_wbc
2023/01/19 16:07 android12-5.4 a0eae55f26a0 66fca3ae .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan kernel BUG in submit_bh_wbc
2023/01/13 23:51 android12-5.4 a0eae55f26a0 529798b0 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan kernel BUG in submit_bh_wbc
2023/01/12 12:01 android12-5.4 4a947285bcca 96166539 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan kernel BUG in submit_bh_wbc
2022/12/28 19:39 android12-5.4 a8aad8851131 44712fbc .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan kernel BUG in submit_bh_wbc
2022/12/26 11:46 android12-5.4 a8aad8851131 9da18ae8 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan kernel BUG in submit_bh_wbc
2022/12/26 04:05 android12-5.4 a8aad8851131 9da18ae8 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan kernel BUG in submit_bh_wbc
2022/12/23 05:20 android12-5.4 a8aad8851131 9da18ae8 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan kernel BUG in submit_bh_wbc
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.