tblock:ffffc900032012c0: 00000000 00000000 00000000 00000000
tblock:ffffc900032012d0: 00000000 00000000 98f4cae0 ffffffff
tblock:ffffc900032012e0: 9281c5e8 ffffffff 00000000 00000000
tblock:ffffc900032012f0: 8b439ba0 ffffffff 00000300 00000000
tblock:ffffc90003201300: 03201300 ffffc900 03201300 ffffc900
tblock:ffffc90003201310: 5f05c8f0 ffff8880 00000000 00000000
VFS: Busy inodes after unmount of loop4 (jfs)
------------[ cut here ]------------
kernel BUG at fs/super.c:653!
Oops: invalid opcode: 0000 [#1] SMP KASAN PTI
CPU: 0 UID: 0 PID: 5814 Comm: syz-executor Tainted: G        W           6.16.0-syzkaller-04405-g4b290aae788e #0 PREEMPT_{RT,(full)} 
Tainted: [W]=WARN
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
RIP: 0010:generic_shutdown_super+0x2bc/0x2c0 fs/super.c:651
Code: 03 42 80 3c 28 00 74 08 4c 89 f7 e8 3e a0 f3 ff 49 8b 16 48 81 c3 d0 07 00 00 48 c7 c7 00 a1 18 8b 48 89 de e8 b5 78 fe fe 90 <0f> 0b 66 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 66 0f
RSP: 0018:ffffc90004e87b80 EFLAGS: 00010246
RAX: 000000000000002d RBX: ffff88803896a7d0 RCX: a2de2cb15ebff000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 1ffff1100712d51b R08: 0000000000000000 R09: 0000000000000000
R10: dffffc0000000000 R11: fffff520009d0f15 R12: 0000000000000000
R13: dffffc0000000000 R14: ffffffff8dbc6340 R15: ffff88803896a8d8
FS:  0000000000000000(0000) GS:ffff888126b22000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f6dc0895938 CR3: 0000000037a88000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 kill_block_super+0x44/0x90 fs/super.c:1766
 deactivate_locked_super+0xb9/0x130 fs/super.c:474
 cleanup_mnt+0x425/0x4c0 fs/namespace.c:1378
 task_work_run+0x1d1/0x260 kernel/task_work.c:227
 exit_task_work include/linux/task_work.h:40 [inline]
 do_exit+0x6b5/0x22f0 kernel/exit.c:964
 do_group_exit+0x21c/0x2d0 kernel/exit.c:1105
 __do_sys_exit_group kernel/exit.c:1116 [inline]
 __se_sys_exit_group kernel/exit.c:1114 [inline]
 __x64_sys_exit_group+0x3f/0x40 kernel/exit.c:1114
 x64_sys_call+0x21f7/0x2200 arch/x86/include/generated/asm/syscalls_64.h:232
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xfa/0x3b0 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f653221e9a9
Code: Unable to access opcode bytes at 0x7f653221e97f.
RSP: 002b:00007ffd49f4d0a8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
RAX: ffffffffffffffda RBX: 00007f65322a0b7a RCX: 00007f653221e9a9
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000001
RBP: 0000000000000002 R08: 00007ffd49f4ae47 R09: 00007ffd49f4e360
R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffd49f4e360
R13: 00007f65322a0b55 R14: 000000000001e9eb R15: 00007ffd49f537f0
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:generic_shutdown_super+0x2bc/0x2c0 fs/super.c:651
Code: 03 42 80 3c 28 00 74 08 4c 89 f7 e8 3e a0 f3 ff 49 8b 16 48 81 c3 d0 07 00 00 48 c7 c7 00 a1 18 8b 48 89 de e8 b5 78 fe fe 90 <0f> 0b 66 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 66 0f
RSP: 0018:ffffc90004e87b80 EFLAGS: 00010246
RAX: 000000000000002d RBX: ffff88803896a7d0 RCX: a2de2cb15ebff000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 1ffff1100712d51b R08: 0000000000000000 R09: 0000000000000000
R10: dffffc0000000000 R11: fffff520009d0f15 R12: 0000000000000000
R13: dffffc0000000000 R14: ffffffff8dbc6340 R15: ffff88803896a8d8
FS:  0000000000000000(0000) GS:ffff888126b22000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f6dc0895938 CR3: 0000000037a88000 CR4: 00000000003526f0