------------[ cut here ]------------
kernel BUG at fs/ocfs2/alloc.c:6009!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 4975 Comm: syz-executor Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
RIP: 0010:__ocfs2_flush_truncate_log+0xfe9/0x1110 fs/ocfs2/alloc.c:6009
Code: 44 89 f1 80 e1 07 80 c1 03 38 c1 0f 8c e6 fb ff ff 4c 89 f7 e8 98 c2 a6 fe e9 d9 fb ff ff e8 6e b6 61 fe 0f 0b e8 67 b6 61 fe <0f> 0b 65 44 8b 35 e5 aa ea 7c bf 07 00 00 00 44 89 f6 e8 b0 b9 61
RSP: 0018:ffffc9000391fa40 EFLAGS: 00010293
RAX: ffffffff83176a69 RBX: 1ffff92000723f5c RCX: ffff8880504b3b80
RDX: 0000000000000000 RSI: 00000000ffffffff RDI: 0000000000000000
RBP: ffffc9000391fc58 R08: ffffc9000391f987 R09: 1ffff92000723f30
R10: dffffc0000000000 R11: fffff52000723f31 R12: 00000000ffffffff
R13: ffff8880611b3338 R14: ffff888062553a00 R15: ffff888061ee4400
FS:  000055558c5f5500(0000) GS:ffff8880b9000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fadab623943 CR3: 0000000065360000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 ocfs2_flush_truncate_log+0x4b/0x60 fs/ocfs2/alloc.c:6074
 ocfs2_sync_fs+0x119/0x330 fs/ocfs2/super.c:403
 sync_filesystem+0x1be/0x220 fs/sync.c:66
 generic_shutdown_super+0x6b/0x300 fs/super.c:448
 kill_block_super+0x7c/0xe0 fs/super.c:1427
 deactivate_locked_super+0x93/0xf0 fs/super.c:335
 cleanup_mnt+0x42d/0x4e0 fs/namespace.c:1148
 task_work_run+0x125/0x1a0 kernel/task_work.c:188
 tracehook_notify_resume include/linux/tracehook.h:189 [inline]
 exit_to_user_mode_loop+0x10f/0x130 kernel/entry/common.c:181
 exit_to_user_mode_prepare+0xee/0x180 kernel/entry/common.c:214
 __syscall_exit_to_user_mode_work kernel/entry/common.c:296 [inline]
 syscall_exit_to_user_mode+0x16/0x40 kernel/entry/common.c:307
 do_syscall_64+0x58/0xa0 arch/x86/entry/common.c:86
 entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7fc89485e1d7
Code: a2 c7 05 bc c3 24 00 00 00 00 00 eb 96 e8 e1 12 00 00 90 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 e8 ff ff ff f7 d8 64 89 02 b8
RSP: 002b:00007ffdd821dc08 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: 0000000000000000 RBX: 00007fc8948f2b3b RCX: 00007fc89485e1d7
RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffdd821dcc0
RBP: 00007ffdd821dcc0 R08: 00007ffdd821ecc0 R09: 00000000ffffffff
R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffdd821ed50
R13: 00007fc8948f2b3b R14: 0000000000023850 R15: 00007ffdd821ed90
 </TASK>
Modules linked in:
---[ end trace bb30a05447d1af40 ]---
RIP: 0010:__ocfs2_flush_truncate_log+0xfe9/0x1110 fs/ocfs2/alloc.c:6009
Code: 44 89 f1 80 e1 07 80 c1 03 38 c1 0f 8c e6 fb ff ff 4c 89 f7 e8 98 c2 a6 fe e9 d9 fb ff ff e8 6e b6 61 fe 0f 0b e8 67 b6 61 fe <0f> 0b 65 44 8b 35 e5 aa ea 7c bf 07 00 00 00 44 89 f6 e8 b0 b9 61
RSP: 0018:ffffc9000391fa40 EFLAGS: 00010293
RAX: ffffffff83176a69 RBX: 1ffff92000723f5c RCX: ffff8880504b3b80
RDX: 0000000000000000 RSI: 00000000ffffffff RDI: 0000000000000000
RBP: ffffc9000391fc58 R08: ffffc9000391f987 R09: 1ffff92000723f30
R10: dffffc0000000000 R11: fffff52000723f31 R12: 00000000ffffffff
R13: ffff8880611b3338 R14: ffff888062553a00 R15: ffff888061ee4400
FS:  000055558c5f5500(0000) GS:ffff8880b9000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055e2961dc950 CR3: 0000000065360000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400