ocfs2: Unmounting device (7,4) on (node local)
VFS: Busy inodes after unmount of loop4 (ocfs2)
------------[ cut here ]------------
kernel BUG at fs/super.c:697!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 18265 Comm: syz.4.2656 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
RIP: 0010:generic_shutdown_super+0x2ad/0x2b0 fs/super.c:695
Code: e8 03 42 80 3c 28 00 74 08 4c 89 f7 e8 4c 59 f0 ff 49 8b 16 48 81 c3 60 06 00 00 48 c7 c7 e0 b1 d7 8a 48 89 de e8 23 ba 8d 08 <0f> 0b 90 66 0f 1f 00 55 41 57 41 56 53 48 89 fb 49 bf 00 00 00 00
RSP: 0018:ffffc90014b37940 EFLAGS: 00010246
RAX: 000000000000002f RBX: ffff8880524fe660 RCX: 74ab60f9515e1c00
RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000
RBP: 1ffff1100a49fcf2 R08: ffffc90014b37647 R09: 1ffff92002966ec8
R10: dffffc0000000000 R11: fffff52002966ec9 R12: 0000000000000000
R13: dffffc0000000000 R14: ffffffff8d6363c0 R15: ffff8880524fe790
FS:  0000000000000000(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ff26717e000 CR3: 0000000075e9e000 CR4: 00000000003506f0
Call Trace:
 <TASK>
 kill_block_super+0x44/0x90 fs/super.c:1660
 deactivate_locked_super+0x97/0x100 fs/super.c:481
 cleanup_mnt+0x43b/0x4d0 fs/namespace.c:1259
 task_work_run+0x1d4/0x260 kernel/task_work.c:245
 exit_task_work include/linux/task_work.h:43 [inline]
 do_exit+0x95a/0x2460 kernel/exit.c:884
 do_group_exit+0x21b/0x2d0 kernel/exit.c:1026
 get_signal+0x12fc/0x13f0 kernel/signal.c:2902
 arch_do_signal_or_restart+0xc2/0x800 arch/x86/kernel/signal.c:310
 exit_to_user_mode_loop+0x70/0x110 kernel/entry/common.c:174
 exit_to_user_mode_prepare+0xee/0x180 kernel/entry/common.c:210
 irqentry_exit_to_user_mode+0x9/0x30 kernel/entry/common.c:315
 exc_page_fault+0x8c/0x100 arch/x86/mm/fault.c:1519
 asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:608
RIP: 0033:0xea8273de21
Code: Unable to access opcode bytes at 0xea8273ddf7.
RSP: 002b:0000200000000438 EFLAGS: 00010217
RAX: 0000000000000000 RBX: 00007f0cde215fa0 RCX: 00007f0cddf9ce59
RDX: 0000200000000440 RSI: 0000200000000430 RDI: 0000000000004000
RBP: 00007f0cde032d6f R08: 0000200000000500 R09: 0000200000000500
R10: 00002000000004c0 R11: 0000000000000206 R12: 0000000000000000
R13: 00007f0cde216038 R14: 00007f0cde215fa0 R15: 00007ffe182a6c08
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:generic_shutdown_super+0x2ad/0x2b0 fs/super.c:695
Code: e8 03 42 80 3c 28 00 74 08 4c 89 f7 e8 4c 59 f0 ff 49 8b 16 48 81 c3 60 06 00 00 48 c7 c7 e0 b1 d7 8a 48 89 de e8 23 ba 8d 08 <0f> 0b 90 66 0f 1f 00 55 41 57 41 56 53 48 89 fb 49 bf 00 00 00 00
RSP: 0018:ffffc90014b37940 EFLAGS: 00010246
RAX: 000000000000002f RBX: ffff8880524fe660 RCX: 74ab60f9515e1c00
RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000
RBP: 1ffff1100a49fcf2 R08: ffffc90014b37647 R09: 1ffff92002966ec8
R10: dffffc0000000000 R11: fffff52002966ec9 R12: 0000000000000000
R13: dffffc0000000000 R14: ffffffff8d6363c0 R15: ffff8880524fe790
FS:  0000000000000000(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fe6993ec4b8 CR3: 00000000258c5000 CR4: 00000000003506e0