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kernel BUG at fs/buffer.c:LINE!

Status: upstream: reported C repro on 2018/04/19 16:02
Subsystems: nilfs
[Documentation on labels]
Reported-by: syzbot+cfed5b56649bddf80d6e@syzkaller.appspotmail.com
First crash: 2008d, last: 2d22h
Cause bisection: introduced by (bisect log) :
commit 5db470e229e22b7eda6e23b5566e532c96fb5bc3
Author: Jaegeuk Kim <jaegeuk@kernel.org>
Date: Thu Jan 10 03:17:14 2019 +0000

  loop: drop caches if offset or block_size are changed

Crash: kernel BUG at fs/buffer.c:LINE! (log)
Repro: C syz .config
  
Fix bisection: failed (error log, bisect log)
  
▶ ▼ Discussions (8)
Title Replies (including bot) Last reply
[syzbot] Monthly nilfs report (Sep 2023) 0 (1) 2023/10/02 09:42
[syzbot] Monthly nilfs report (Aug 2023) 0 (1) 2023/08/30 09:54
[syzbot] Monthly nilfs report (Jul 2023) 0 (1) 2023/07/30 13:15
[syzbot] Monthly nilfs report (Jun 2023) 0 (1) 2023/06/29 08:55
[syzbot] Monthly fat report (May 2023) 0 (1) 2023/05/31 12:40
[syzbot] Monthly fat report (Apr 2023) 0 (1) 2023/05/01 09:05
[syzbot] Monthly fat report 0 (1) 2023/03/30 10:28
kernel BUG at fs/buffer.c:LINE! 3 (6) 2019/12/19 23:30
▶ ▼ Similar bugs (10)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
android-49 kernel BUG at fs/buffer.c:LINE! 5 1890d 1945d 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 224d 1618d 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 1156d 1609d 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 231d 1045d 0/1 upstream: reported C repro on 2020/11/21 07:48
android-54 kernel BUG at fs/buffer.c:LINE! ext4 C 114 1d05h 1349d 0/2 upstream: reported C repro on 2020/01/21 13:12
android-6-1 kernel BUG in __block_commit_write syz error 1 18d 18d 0/2 premoderation: reported syz repro on 2023/09/13 18:08
android-5-10 kernel BUG in __block_commit_write 1 19d 19d 0/2 premoderation: reported on 2023/09/13 11:35
linux-6.1 kernel BUG in submit_bh_wbc origin:upstream C 3 19d 180d 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 10d 119d 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 7 4d00h 109d 0/2 upstream: reported C repro on 2023/06/15 00:20
▶ ▼ Last patch testing requests (1)
Created Duration User Patch Repo Result
2022/09/29 10:30 18m retest repro upstream OK log
▶ ▼ Fix bisection attempts (2)
Created Duration User Patch Repo Result
2020/08/02 10:11 8h04m bisect fix upstream error job log (0)
2020/01/26 22:52 25m bisect fix upstream job log (0) log

Sample crash report:
NILFS (loop0): nilfs_get_block (ino=19): a race condition while inserting a data block at offset=0
------------[ cut here ]------------
kernel BUG at fs/buffer.c:2782!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 1 PID: 5066 Comm: syz-executor109 Not tainted 6.6.0-rc3-syzkaller-00055-g9ed22ae6be81 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/06/2023
RIP: 0010:submit_bh_wbc+0x515/0x530 fs/buffer.c:2782
Code: e8 f0 93 84 ff be 00 10 00 00 48 c7 c7 80 d6 45 8d 4c 89 ea e8 2c 3b 6e 02 e9 b1 fe ff ff e8 d2 93 84 ff 0f 0b e8 cb 93 84 ff <0f> 0b e8 c4 93 84 ff 0f 0b e8 bd 93 84 ff 0f 0b e8 b6 93 84 ff 0f
RSP: 0018:ffffc90003ddf858 EFLAGS: 00010293
RAX: ffffffff820976a5 RBX: 0000000000000000 RCX: ffff888027e48000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: ffffffff82097234 R09: 1ffff1100ff5f8cb
R10: dffffc0000000000 R11: ffffed100ff5f8cc R12: ffff88807fafc658
R13: 1ffff1100ff5f8cb R14: 0000000000000000 R15: ffff88807fafc658
FS:  00007fbc3c7126c0(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fbc44aec112 CR3: 000000007366f000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 submit_bh fs/buffer.c:2822 [inline]
 __bh_read fs/buffer.c:3087 [inline]
 bh_read_nowait include/linux/buffer_head.h:415 [inline]
 __block_write_begin_int+0x12c0/0x1a50 fs/buffer.c:2140
 __block_write_begin fs/buffer.c:2160 [inline]
 block_write_begin+0x9b/0x1e0 fs/buffer.c:2219
 nilfs_write_begin+0xa0/0x110 fs/nilfs2/inode.c:261
 generic_perform_write+0x31b/0x630 mm/filemap.c:3969
 __generic_file_write_iter+0x1b4/0x230 mm/filemap.c:4061
 generic_file_write_iter+0xaf/0x310 mm/filemap.c:4090
 call_write_iter include/linux/fs.h:1956 [inline]
 new_sync_write fs/read_write.c:491 [inline]
 vfs_write+0x782/0xaf0 fs/read_write.c:584
 ksys_write+0x1a0/0x2c0 fs/read_write.c:637
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7fbc44a9fb69
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 61 1b 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fbc3c712168 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007fbc44b20628 RCX: 00007fbc44a9fb69
RDX: 00000000000000a0 RSI: 0000000020000380 RDI: 0000000000000006
RBP: 00007fbc44b20620 R08: 00007ffd94a68bd7 R09: 0000000000000000
R10: 0000000000000098 R11: 0000000000000246 R12: 00007fbc44b2062c
R13: 000000000000006e R14: 00007ffd94a68af0 R15: 00007ffd94a68bd8
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:submit_bh_wbc+0x515/0x530 fs/buffer.c:2782
Code: e8 f0 93 84 ff be 00 10 00 00 48 c7 c7 80 d6 45 8d 4c 89 ea e8 2c 3b 6e 02 e9 b1 fe ff ff e8 d2 93 84 ff 0f 0b e8 cb 93 84 ff <0f> 0b e8 c4 93 84 ff 0f 0b e8 bd 93 84 ff 0f 0b e8 b6 93 84 ff 0f
RSP: 0018:ffffc90003ddf858 EFLAGS: 00010293
RAX: ffffffff820976a5 RBX: 0000000000000000 RCX: ffff888027e48000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: ffffffff82097234 R09: 1ffff1100ff5f8cb
R10: dffffc0000000000 R11: ffffed100ff5f8cc R12: ffff88807fafc658
R13: 1ffff1100ff5f8cb R14: 0000000000000000 R15: ffff88807fafc658
FS:  00007fbc3c7126c0(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fbc44aeb858 CR3: 000000007366f000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400

Crashes (325):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2023/09/29 13:38 upstream 9ed22ae6be81 d265efd8 .config strace log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci-upstream-kasan-gce-smack-root kernel BUG in submit_bh_wbc
2023/09/10 05:48 upstream 2a5a4326e583 6654cf89 .config strace log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci-upstream-kasan-gce-smack-root kernel BUG in submit_bh_wbc
2023/06/21 02:14 upstream 99ec1ed7c2ed 09ffe269 .config strace log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci-upstream-kasan-gce-root kernel BUG in submit_bh_wbc
2023/05/09 21:09 upstream 1dc3731daf1f 30aa2a7e .config strace log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-upstream-fs kernel BUG in submit_bh_wbc
2022/10/08 20:16 upstream e8bc52cb8df8 aea5da89 .config strace log report syz C [disk image] [vmlinux] [mounted in repro] ci-upstream-kasan-gce-root kernel BUG in submit_bh_wbc
2019/12/18 11:56 upstream 2187f215ebaa f2fe0772 .config console log report syz C ci-upstream-kasan-gce-root
2023/07/30 06:57 linux-next d7b3af5a77e8 92476829 .config console log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci-upstream-linux-next-kasan-gce-root kernel BUG in submit_bh_wbc
2019/12/27 06:54 linux-next 7ddd09fc4b74 be5c2c81 .config console log report syz C ci-upstream-linux-next-kasan-gce-root
2022/10/02 11:40 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci bbed346d5a96 feb56351 .config console log report syz C [disk image] [vmlinux] ci-upstream-gce-arm64 kernel BUG in submit_bh_wbc
2021/08/16 09:02 upstream 7c60610d4767 2489ab88 .config console log report syz ci-upstream-kasan-gce-root kernel BUG in __block_commit_write
2020/07/03 02:09 linux-next aab2003999e7 bed10395 .config console log report syz ci-upstream-linux-next-kasan-gce-root
2019/12/18 11:35 upstream 2187f215ebaa f2fe0772 .config console log report syz C ci-upstream-kasan-gce-selinux-root
2023/09/26 23:01 upstream 50768a425b46 0b6a67ac .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs kernel BUG in submit_bh_wbc
2023/09/25 21:44 upstream 6465e260f487 0b6a67ac .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs kernel BUG in submit_bh_wbc
2023/09/21 15:21 upstream 42dc814987c1 0b6a67ac .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs kernel BUG in submit_bh_wbc
2023/09/21 06:00 upstream 5d2f53532ecc 0b6a67ac .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs kernel BUG in submit_bh_wbc
2023/09/09 04:40 upstream a48fa7efaf11 6654cf89 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root kernel BUG in submit_bh_wbc
2023/09/07 15:42 upstream 7ba2090ca64e 72324844 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs kernel BUG in submit_bh_wbc
2023/09/06 14:40 upstream 65d6e954e378 8bc9053e .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root kernel BUG in submit_bh_wbc
2023/09/06 10:44 upstream 65d6e954e378 0b6286dc .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs kernel BUG in submit_bh_wbc
2023/09/05 19:11 upstream 3f86ed6ec0b3 0b6286dc .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs kernel BUG in submit_bh_wbc
2023/09/05 17:51 upstream 3f86ed6ec0b3 0b6286dc .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs kernel BUG in submit_bh_wbc
2023/09/04 15:03 upstream 708283abf896 db3306a6 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs kernel BUG in submit_bh_wbc
2023/09/03 02:53 upstream 92901222f83d 696ea0d2 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs kernel BUG in submit_bh_wbc
2023/09/21 06:04 upstream 5d2f53532ecc 0b6a67ac .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 kernel BUG in submit_bh_wbc
2023/08/28 13:19 upstream 2dde18cd1d8f 7ba13a15 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs kernel BUG in submit_bh_wbc
2023/08/26 01:51 upstream 382d4cd18475 03d9c195 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root kernel BUG in submit_bh_wbc
2023/08/23 07:53 upstream 53663f4103ff b81ca3f6 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs kernel BUG in submit_bh_wbc
2023/08/22 15:11 upstream f7757129e3de b81ca3f6 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs kernel BUG in submit_bh_wbc
2023/08/20 05:05 upstream 9e6c269de404 d216d8a0 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs kernel BUG in submit_bh_wbc
2023/08/19 22:20 upstream aa9ea98cca3a d216d8a0 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs kernel BUG in submit_bh_wbc
2023/08/18 15:04 upstream 0e8860d2125f d216d8a0 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root kernel BUG in submit_bh_wbc
2023/08/18 12:48 upstream 0e8860d2125f acb1ba71 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs kernel BUG in submit_bh_wbc
2023/08/18 05:40 upstream 16931859a650 74b106b6 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs kernel BUG in submit_bh_wbc
2023/08/16 17:27 upstream 4853c74bd7ab 39990d51 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs kernel BUG in submit_bh_wbc
2023/08/15 19:49 upstream 91aa6c412d7f 39990d51 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root kernel BUG in submit_bh_wbc
2023/08/15 06:14 upstream 2ccdd1b13c59 39990d51 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs kernel BUG in submit_bh_wbc
2023/08/15 02:16 upstream 2ccdd1b13c59 39990d51 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs kernel BUG in submit_bh_wbc
2023/08/14 14:44 upstream 2ccdd1b13c59 39990d51 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs kernel BUG in submit_bh_wbc
2023/08/14 08:38 upstream 2ccdd1b13c59 39990d51 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs kernel BUG in submit_bh_wbc
2023/08/13 21:10 upstream a785fd28d31f 39990d51 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs kernel BUG in submit_bh_wbc
2023/08/13 17:45 upstream a785fd28d31f 39990d51 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs kernel BUG in submit_bh_wbc
2023/08/13 15:09 upstream a785fd28d31f 39990d51 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs kernel BUG in submit_bh_wbc
2023/08/12 23:20 upstream ae545c3283dc 39990d51 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs kernel BUG in submit_bh_wbc
2023/08/10 05:38 upstream cacc6e22932f 13ca4cd6 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs kernel BUG in submit_bh_wbc
2023/08/09 17:59 upstream 13b937206866 13ca4cd6 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root kernel BUG in submit_bh_wbc
2023/08/06 07:06 upstream f6a691685962 4ffcc9ef .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs kernel BUG in submit_bh_wbc
2023/08/05 23:14 upstream 024ff300db33 4ffcc9ef .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs kernel BUG in submit_bh_wbc
2023/08/02 18:10 upstream 5d0c230f1de8 b178af49 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs kernel BUG in submit_bh_wbc
2023/08/02 10:05 upstream 5d0c230f1de8 df07ffe8 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs kernel BUG in submit_bh_wbc
2023/08/01 08:15 upstream 5d0c230f1de8 2a0d0f29 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs kernel BUG in submit_bh_wbc
2023/07/31 20:01 upstream 5d0c230f1de8 2a0d0f29 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs kernel BUG in submit_bh_wbc
2023/07/30 17:06 upstream d31e3792919e 2a0d0f29 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs kernel BUG in submit_bh_wbc
2023/07/28 02:32 upstream 0a8db05b571a 92476829 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs kernel BUG in submit_bh_wbc
2023/07/27 04:43 upstream 5f0bc0b042fc 41fe1bae .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs kernel BUG in submit_bh_wbc
2023/07/25 19:35 upstream 0b5547c51827 6756545c .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-badwrites-root kernel BUG in submit_bh_wbc
2023/07/25 13:39 upstream 0b5547c51827 e88c086e .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root kernel BUG in submit_bh_wbc
2023/06/30 13:43 upstream 6e2332e0ab53 01298212 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream kernel BUG in submit_bh_wbc
2021/10/29 02:19 upstream 411a44c24a56 be531bb4 .config console log report info ci-upstream-kasan-gce kernel BUG in block_invalidatepage
2021/10/24 23:04 upstream 6c62666d8879 282f03fb .config console log report info ci-upstream-kasan-gce kernel BUG in block_invalidatepage
2020/07/03 03:32 upstream cd77006e01b3 bed10395 .config console log report ci-upstream-kasan-gce-smack-root
2018/04/02 20:37 upstream 86bbbebac193 676bd07e .config console log report ci-upstream-kasan-gce-root
2023/07/26 22:52 upstream 0a8db05b571a 41fe1bae .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 kernel BUG in submit_bh_wbc
2021/09/27 17:16 upstream 5816b3e6577e 78494d16 .config console log report info ci-upstream-kasan-gce-386 kernel BUG in block_invalidatepage
2023/09/07 21:39 linux-next cd04b2fab5ee 72324844 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root kernel BUG in submit_bh_wbc
2023/09/16 11:46 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci fe4469582053 0b6a67ac .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 kernel BUG in submit_bh_wbc
2023/09/05 10:01 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci fe4469582053 8bc9053e .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 kernel BUG in submit_bh_wbc
2023/08/13 23:19 linux-next 21ef7b1e17d0 39990d51 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root kernel BUG in submit_bh_wbc
2023/07/26 18:03 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci e40939bbfc68 41fe1bae .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 kernel BUG in submit_bh_wbc
* Struck through repros no longer work on HEAD.