syzbot


kernel BUG in clear_inode (2)

Status: auto-obsoleted due to no activity on 2024/10/27 05:50
Reported-by: syzbot+0bcec20798338ff74b95@syzkaller.appspotmail.com
First crash: 234d, last: 155d
Similar bugs (6)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
upstream kernel BUG in clear_inode (2) jfs C inconclusive 624 3h19m 53d 0/28 upstream: reported C repro on 2024/10/28 16:33
linux-6.1 kernel BUG in clear_inode origin:upstream C inconclusive 18 14d 575d 0/3 upstream: reported C repro on 2023/05/25 23:24
linux-5.15 kernel BUG in clear_inode (3) origin:upstream C 12 12d 29d 0/3 upstream: reported C repro on 2024/11/22 00:29
linux-5.15 kernel BUG in clear_inode 1 600d 600d 0/3 auto-obsoleted due to no activity on 2023/08/23 09:07
upstream kernel BUG in clear_inode btrfs C 12 62d 203d 28/28 fixed on 2024/10/22 11:57
upstream kernel BUG at fs/inode.c:LINE! (2) fs C done unreliable 322 227d 1575d 25/28 fixed on 2024/05/21 07:00

Sample crash report:
------------[ cut here ]------------
kernel BUG at fs/inode.c:546!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 5164 Comm: syz-executor.4 Not tainted 5.15.157-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024
RIP: 0010:clear_inode+0x13f/0x150 fs/inode.c:546
Code: c7 06 60 00 00 00 5b 41 5c 41 5d 41 5e 41 5f c3 e8 c6 be a3 ff 0f 0b e8 bf be a3 ff 0f 0b e8 b8 be a3 ff 0f 0b e8 b1 be a3 ff <0f> 0b e8 aa be a3 ff 0f 0b 0f 1f 84 00 00 00 00 00 55 48 89 e5 41
RSP: 0018:ffffc900036e7af0 EFLAGS: 00010293
RAX: ffffffff81dc9e2f RBX: 0000000000000040 RCX: ffff88805cd75940
RDX: 0000000000000000 RSI: 0000000000000040 RDI: 0000000000000000
RBP: ffffc900036e7c20 R08: ffffffff81dc9dc4 R09: fffffbfff1f7ee42
R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000
R13: 1ffff1100e4eff6b R14: ffff88807277fb58 R15: ffff88807277fa80
FS:  0000555556efe480(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000c000cd6020 CR3: 0000000055acb000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 btrfs_evict_inode+0x9de/0xff0 fs/btrfs/inode.c:5737
 evict+0x2a4/0x620 fs/inode.c:587
 dispose_list fs/inode.c:620 [inline]
 evict_inodes+0x601/0x6a0 fs/inode.c:670
 generic_shutdown_super+0x99/0x2c0 fs/super.c:454
 kill_anon_super+0x37/0x60 fs/super.c:1076
 btrfs_kill_super+0x3d/0x50 fs/btrfs/super.c:2391
 deactivate_locked_super+0xa0/0x110 fs/super.c:335
 cleanup_mnt+0x44e/0x500 fs/namespace.c:1143
 task_work_run+0x129/0x1a0 kernel/task_work.c:164
 tracehook_notify_resume include/linux/tracehook.h:189 [inline]
 exit_to_user_mode_loop+0x106/0x130 kernel/entry/common.c:181
 exit_to_user_mode_prepare+0xb1/0x140 kernel/entry/common.c:214
 __syscall_exit_to_user_mode_work kernel/entry/common.c:296 [inline]
 syscall_exit_to_user_mode+0x5d/0x240 kernel/entry/common.c:307
 do_syscall_64+0x47/0xb0 arch/x86/entry/common.c:86
 entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7fca3e6c21d7
Code: b0 ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 0f 1f 44 00 00 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 b0 ff ff ff f7 d8 64 89 02 b8
RSP: 002b:00007fff0e375058 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007fca3e6c21d7
RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007fff0e375110
RBP: 00007fff0e375110 R08: 0000000000000000 R09: 0000000000000000
R10: 00000000ffffffff R11: 0000000000000246 R12: 00007fff0e3761d0
R13: 00007fca3e70c3b9 R14: 000000000002096b R15: 000000000000000a
 </TASK>
Modules linked in:
---[ end trace bf40b11beecf9437 ]---
RIP: 0010:clear_inode+0x13f/0x150 fs/inode.c:546
Code: c7 06 60 00 00 00 5b 41 5c 41 5d 41 5e 41 5f c3 e8 c6 be a3 ff 0f 0b e8 bf be a3 ff 0f 0b e8 b8 be a3 ff 0f 0b e8 b1 be a3 ff <0f> 0b e8 aa be a3 ff 0f 0b 0f 1f 84 00 00 00 00 00 55 48 89 e5 41
RSP: 0018:ffffc900036e7af0 EFLAGS: 00010293
RAX: ffffffff81dc9e2f RBX: 0000000000000040 RCX: ffff88805cd75940
RDX: 0000000000000000 RSI: 0000000000000040 RDI: 0000000000000000
RBP: ffffc900036e7c20 R08: ffffffff81dc9dc4 R09: fffffbfff1f7ee42
R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000
R13: 1ffff1100e4eff6b R14: ffff88807277fb58 R15: ffff88807277fa80
FS:  0000555556efe480(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2f431000 CR3: 0000000055acb000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400

Crashes (2):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2024/05/01 04:15 linux-5.15.y b925f60c6ee7 3ba885bc .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan kernel BUG in clear_inode
2024/07/19 05:49 linux-5.15.y 7c6d66f0266f ee4e11c8 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 kernel BUG in clear_inode
* Struck through repros no longer work on HEAD.