syzbot


kernel BUG in clear_inode (3)

Status: upstream: reported C repro on 2025/06/12 11:53
Subsystems: jfs
[Documentation on labels]
Reported-by: syzbot+6e516bb515d93230bc7b@syzkaller.appspotmail.com
First crash: 14d, last: 2h50m
Cause bisection: failed (error log, bisect log)
  
Discussions (2)
Title Replies (including bot) Last reply
[PATCH] jfs: truncate good inode pages when hard link is 0 1 (1) 2025/06/13 03:05
[syzbot] [jfs?] kernel BUG in clear_inode (3) 0 (1) 2025/06/12 11:53
Similar bugs (8)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
upstream kernel BUG in clear_inode (2) jfs C inconclusive 986 15d 240d 28/29 fixed on 2025/06/10 16:19
linux-6.1 kernel BUG in clear_inode origin:upstream missing-backport C inconclusive 25 12d 762d 0/3 upstream: reported C repro on 2023/05/25 23:24
linux-6.6 kernel BUG in clear_inode origin:upstream C 5 7d20h 8d05h 0/2 upstream: reported C repro on 2025/06/18 00:00
linux-5.15 kernel BUG in clear_inode (3) missing-backport origin:upstream C done 22 13d 216d 0/3 upstream: reported C repro on 2024/11/22 00:29
linux-5.15 kernel BUG in clear_inode 1 786d 786d 0/3 auto-obsoleted due to no activity on 2023/08/23 09:07
linux-5.15 kernel BUG in clear_inode (2) 2 342d 421d 0/3 auto-obsoleted due to no activity on 2024/10/27 05:50
upstream kernel BUG in clear_inode btrfs C 12 249d 390d 28/29 fixed on 2024/10/22 11:57
upstream kernel BUG at fs/inode.c:LINE! (2) fs C done unreliable 322 414d 1762d 25/29 fixed on 2024/05/21 07:00
Cause bisection attempts (2)
Created Duration User Patch Repo Result
2025/06/19 18:27 8h35m bisect upstream error job log
2025/06/12 10:07 7h55m bisect upstream error job log

Sample crash report:
------------[ cut here ]------------
kernel BUG at fs/inode.c:753!
Oops: invalid opcode: 0000 [#1] SMP KASAN PTI
CPU: 1 UID: 0 PID: 5829 Comm: syz-executor199 Not tainted 6.16.0-rc1-syzkaller-00005-g488ef3560196 #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
RIP: 0010:clear_inode+0x169/0x190 fs/inode.c:753
Code: 4c 89 f7 e8 59 20 e8 ff e9 60 ff ff ff 44 89 f1 80 e1 07 80 c1 03 38 c1 7c c0 4c 89 f7 e8 2f 21 e8 ff eb b6 e8 b8 d3 86 ff 90 <0f> 0b e8 b0 d3 86 ff 90 0f 0b e8 a8 d3 86 ff 90 0f 0b e8 a0 d3 86
RSP: 0018:ffffc900043bf870 EFLAGS: 00010093
RAX: ffffffff82397a38 RBX: ffff88807e1cb248 RCX: ffff888034aeda00
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000
RBP: 0000000000000000 R08: 0000000000000003 R09: 0000000000000004
R10: dffffc0000000000 R11: fffff52000877eec R12: dffffc0000000000
R13: dffffc0000000000 R14: ffff88807e1cb470 R15: 0000000000000001
FS:  0000555556cc1380(0000) GS:ffff888125d86000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000555556cca6f8 CR3: 0000000077920000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 jfs_evict_inode+0xb1/0x440 fs/jfs/inode.c:166
 evict+0x501/0x9c0 fs/inode.c:810
 __dentry_kill+0x209/0x660 fs/dcache.c:669
 shrink_kill+0xa9/0x2c0 fs/dcache.c:1114
 shrink_dentry_list+0x2e0/0x5e0 fs/dcache.c:1141
 shrink_dcache_parent+0xa1/0x2c0 fs/dcache.c:-1
 do_one_tree+0x23/0xe0 fs/dcache.c:1604
 shrink_dcache_for_umount+0xa0/0x170 fs/dcache.c:1621
 generic_shutdown_super+0x67/0x2c0 fs/super.c:621
 kill_block_super+0x44/0x90 fs/super.c:1753
 deactivate_locked_super+0xbc/0x130 fs/super.c:474
 cleanup_mnt+0x425/0x4c0 fs/namespace.c:1417
 task_work_run+0x1d1/0x260 kernel/task_work.c:227
 ptrace_notify+0x281/0x2c0 kernel/signal.c:2520
 ptrace_report_syscall include/linux/ptrace.h:415 [inline]
 ptrace_report_syscall_exit include/linux/ptrace.h:477 [inline]
 syscall_exit_work+0xc6/0x1d0 kernel/entry/common.c:173
 syscall_exit_to_user_mode_work include/linux/entry-common.h:412 [inline]
 syscall_exit_to_user_mode include/linux/entry-common.h:449 [inline]
 do_syscall_64+0x2ad/0x3b0 arch/x86/entry/syscall_64.c:100
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f724b14c587
Code: 07 00 48 83 c4 08 5b 5d c3 66 2e 0f 1f 84 00 00 00 00 00 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 b8 ff ff ff f7 d8 64 89 02 b8
RSP: 002b:00007ffffbe47da8 EFLAGS: 00000202 ORIG_RAX: 00000000000000a6
RAX: 0000000000000000 RBX: 0000000000014e57 RCX: 00007f724b14c587
RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffffbe47e60
RBP: 00007ffffbe47e60 R08: 0000000000000000 R09: 0000000000000000
R10: 00000000ffffffff R11: 0000000000000202 R12: 00007ffffbe48ed0
R13: 0000555556cc26c0 R14: 431bde82d7b634db R15: 00007ffffbe48ef0
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:clear_inode+0x169/0x190 fs/inode.c:753
Code: 4c 89 f7 e8 59 20 e8 ff e9 60 ff ff ff 44 89 f1 80 e1 07 80 c1 03 38 c1 7c c0 4c 89 f7 e8 2f 21 e8 ff eb b6 e8 b8 d3 86 ff 90 <0f> 0b e8 b0 d3 86 ff 90 0f 0b e8 a8 d3 86 ff 90 0f 0b e8 a0 d3 86
RSP: 0018:ffffc900043bf870 EFLAGS: 00010093
RAX: ffffffff82397a38 RBX: ffff88807e1cb248 RCX: ffff888034aeda00
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000
RBP: 0000000000000000 R08: 0000000000000003 R09: 0000000000000004
R10: dffffc0000000000 R11: fffff52000877eec R12: dffffc0000000000
R13: dffffc0000000000 R14: ffff88807e1cb470 R15: 0000000000000001
FS:  0000555556cc1380(0000) GS:ffff888125d86000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000555556cca6f8 CR3: 0000000077920000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400

Crashes (268):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2025/06/12 08:25 upstream 488ef3560196 98683f8f .config strace log report syz / log C [disk image] [vmlinux] [kernel image] [mounted in repro (corrupt fs)] ci2-upstream-fs kernel BUG in clear_inode
2025/06/12 07:00 upstream 488ef3560196 98683f8f .config strace log report syz / log C [disk image] [vmlinux] [kernel image] [mounted in repro (corrupt fs)] ci2-upstream-fs kernel BUG in clear_inode
2025/06/12 05:21 upstream 488ef3560196 98683f8f .config strace log report syz / log C [disk image] [vmlinux] [kernel image] [mounted in repro (corrupt fs)] ci2-upstream-fs kernel BUG in clear_inode
2025/06/12 02:59 upstream 488ef3560196 98683f8f .config strace log report syz / log C [disk image] [vmlinux] [kernel image] [mounted in repro (corrupt fs)] ci2-upstream-fs kernel BUG in clear_inode
2025/06/23 00:14 upstream b67ec639010f d6cdfb8a .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs kernel BUG in clear_inode
2025/06/22 16:35 upstream 739a6c93cc75 d6cdfb8a .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs kernel BUG in clear_inode
2025/06/22 12:53 upstream 739a6c93cc75 d6cdfb8a .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs kernel BUG in clear_inode
2025/06/21 16:15 upstream 3f75bfff44be d6cdfb8a .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs kernel BUG in clear_inode
2025/06/21 15:13 upstream 11313e2f7812 d6cdfb8a .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs kernel BUG in clear_inode
2025/06/21 12:03 upstream 11313e2f7812 d6cdfb8a .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs kernel BUG in clear_inode
2025/06/21 10:19 upstream 11313e2f7812 d6cdfb8a .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs kernel BUG in clear_inode
2025/06/21 07:15 upstream 11313e2f7812 d6cdfb8a .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs kernel BUG in clear_inode
2025/06/21 05:19 upstream 11313e2f7812 d6cdfb8a .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs kernel BUG in clear_inode
2025/06/21 02:34 upstream 11313e2f7812 d6cdfb8a .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs kernel BUG in clear_inode
2025/06/21 01:10 upstream 41687a5c6f8b 804b3919 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs kernel BUG in clear_inode
2025/06/20 22:42 upstream 41687a5c6f8b 804b3919 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs kernel BUG in clear_inode
2025/06/20 18:36 upstream 41687a5c6f8b 804b3919 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs kernel BUG in clear_inode
2025/06/20 18:26 upstream 41687a5c6f8b 804b3919 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs kernel BUG in clear_inode
2025/06/20 17:18 upstream 41687a5c6f8b 804b3919 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs kernel BUG in clear_inode
2025/06/20 12:58 upstream 41687a5c6f8b 804b3919 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs kernel BUG in clear_inode
2025/06/20 10:51 upstream 41687a5c6f8b ed3e87f7 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs kernel BUG in clear_inode
2025/06/20 07:44 upstream 41687a5c6f8b ed3e87f7 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs kernel BUG in clear_inode
2025/06/20 03:22 upstream 24770983ccfe ed3e87f7 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs kernel BUG in clear_inode
2025/06/20 02:16 upstream 24770983ccfe ed3e87f7 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs kernel BUG in clear_inode
2025/06/20 00:10 upstream 24770983ccfe ed3e87f7 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs kernel BUG in clear_inode
2025/06/19 23:03 upstream 24770983ccfe ed3e87f7 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs kernel BUG in clear_inode
2025/06/19 23:01 upstream 24770983ccfe ed3e87f7 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs kernel BUG in clear_inode
2025/06/19 18:17 upstream 24770983ccfe ed3e87f7 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs kernel BUG in clear_inode
2025/06/19 15:19 upstream fb4d33ab452e ed3e87f7 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs kernel BUG in clear_inode
2025/06/19 11:33 upstream fb4d33ab452e ed3e87f7 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs kernel BUG in clear_inode
2025/06/19 09:03 upstream fb4d33ab452e ed3e87f7 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs kernel BUG in clear_inode
2025/06/19 05:47 upstream fb4d33ab452e ed3e87f7 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs kernel BUG in clear_inode
2025/06/19 04:07 upstream fb4d33ab452e ed3e87f7 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs kernel BUG in clear_inode
2025/06/19 04:06 upstream fb4d33ab452e ed3e87f7 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs kernel BUG in clear_inode
2025/06/19 01:56 upstream 52da431bf03b ed3e87f7 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs kernel BUG in clear_inode
2025/06/18 14:31 upstream 52da431bf03b ed3e87f7 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs kernel BUG in clear_inode
2025/06/18 12:30 upstream 52da431bf03b ca631f70 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs kernel BUG in clear_inode
2025/06/18 09:43 upstream 52da431bf03b e77fae15 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs kernel BUG in clear_inode
2025/06/18 07:27 upstream 4663747812d1 e77fae15 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs kernel BUG in clear_inode
2025/06/18 07:17 upstream 4663747812d1 e77fae15 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs kernel BUG in clear_inode
2025/06/18 05:29 upstream 4663747812d1 e77fae15 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs kernel BUG in clear_inode
2025/06/18 03:30 upstream 4663747812d1 e77fae15 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs kernel BUG in clear_inode
2025/06/18 01:19 upstream 4663747812d1 e77fae15 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs kernel BUG in clear_inode
2025/06/17 20:00 upstream 4663747812d1 e77fae15 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs kernel BUG in clear_inode
2025/06/17 18:40 upstream 9afe652958c3 cfebc887 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs kernel BUG in clear_inode
2025/06/17 17:36 upstream 9afe652958c3 cfebc887 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs kernel BUG in clear_inode
2025/06/17 16:34 upstream 9afe652958c3 cfebc887 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs kernel BUG in clear_inode
2025/06/17 14:37 upstream 9afe652958c3 cfebc887 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs kernel BUG in clear_inode
2025/06/17 12:21 upstream 9afe652958c3 cfebc887 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs kernel BUG in clear_inode
2025/06/13 13:45 upstream 27605c8c0f69 98683f8f .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-badwrites-root kernel BUG in clear_inode
2025/06/15 15:01 linux-next bc6e0ba6c9ba 5f4b362d .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root kernel BUG in clear_inode
2025/06/26 03:06 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 9aa9b43d689e 26d77996 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 kernel BUG in clear_inode
2025/06/23 07:49 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 9aa9b43d689e d6cdfb8a .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 kernel BUG in clear_inode
* Struck through repros no longer work on HEAD.