tblock:ffffc90003209290: ffffffff ffffffff 98be3920 ffffffff
tblock:ffffc900032092a0: 00000000 00000000 00000000 00000000
tblock:ffffc900032092b0: 8aeb3a20 ffffffff 00000200 00000000
tblock:ffffc900032092c0: 00000000 00000000 00000000 00000000
tblock:ffffc900032092d0: 00000000 00000000 98da0d80 ffffffff
tblock:ffffc900032092e0: 00000000 00000000 00000000 00000000
tblock:ffffc900032092f0: 8b252b20 ffffffff 00000300 00000000
tblock:ffffc90003209300: 03209300 ffffc900 03209300 ffffc900
tblock:ffffc90003209310: 5cd48e00 ffff8880 00000000 00000000
VFS: Busy inodes after unmount of loop1 (jfs)
------------[ cut here ]------------
kernel BUG at fs/super.c:653!
Oops: invalid opcode: 0000 [#1] SMP KASAN PTI
CPU: 1 UID: 0 PID: 5802 Comm: syz-executor Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
RIP: 0010:generic_shutdown_super+0x2bc/0x2c0 fs/super.c:651
Code: 03 42 80 3c 28 00 74 08 4c 89 f7 e8 ee e4 f2 ff 49 8b 16 48 81 c3 c8 07 00 00 48 c7 c7 20 2e f9 8a 48 89 de e8 65 55 f8 fe 90 <0f> 0b 66 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 0f 1f
RSP: 0018:ffffc90004e2fba0 EFLAGS: 00010246
RAX: 000000000000002d RBX: ffff88802a88c7c8 RCX: 3cc1bd7efc2e2200
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 1ffff1100551191a R08: 0000000000000000 R09: 0000000000000000
R10: dffffc0000000000 R11: ffffed1017124923 R12: 0000000000000000
R13: dffffc0000000000 R14: ffffffff8d9ef580 R15: ffff88802a88c8d0
FS:  0000000000000000(0000) GS:ffff888126def000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055fd4eb756d8 CR3: 000000000d3a8000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 kill_block_super+0x44/0x90 fs/super.c:1722
 deactivate_locked_super+0xbc/0x130 fs/super.c:474
 cleanup_mnt+0x425/0x4c0 fs/namespace.c:1318
 task_work_run+0x1d4/0x260 kernel/task_work.c:233
 exit_task_work include/linux/task_work.h:40 [inline]
 do_exit+0x694/0x22f0 kernel/exit.c:971
 do_group_exit+0x21c/0x2d0 kernel/exit.c:1112
 __do_sys_exit_group kernel/exit.c:1123 [inline]
 __se_sys_exit_group kernel/exit.c:1121 [inline]
 __x64_sys_exit_group+0x3f/0x40 kernel/exit.c:1121
 x64_sys_call+0x2210/0x2210 arch/x86/include/generated/asm/syscalls_64.h:232
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xec/0xf80 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f91d0fff749
Code: Unable to access opcode bytes at 0x7f91d0fff71f.
RSP: 002b:00007ffff008ea48 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
RAX: ffffffffffffffda RBX: 00007f91d1083da2 RCX: 00007f91d0fff749
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000001
RBP: 0000000000000002 R08: 00007ffff008c7e7 R09: 00007ffff008fd00
R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffff008fd00
R13: 00007f91d1083d7d R14: 0000000000019662 R15: 00007ffff0091ec0
 </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 ee e4 f2 ff 49 8b 16 48 81 c3 c8 07 00 00 48 c7 c7 20 2e f9 8a 48 89 de e8 65 55 f8 fe 90 <0f> 0b 66 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 0f 1f
RSP: 0018:ffffc90004e2fba0 EFLAGS: 00010246
RAX: 000000000000002d RBX: ffff88802a88c7c8 RCX: 3cc1bd7efc2e2200
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 1ffff1100551191a R08: 0000000000000000 R09: 0000000000000000
R10: dffffc0000000000 R11: ffffed1017124923 R12: 0000000000000000
R13: dffffc0000000000 R14: ffffffff8d9ef580 R15: ffff88802a88c8d0
FS:  0000000000000000(0000) GS:ffff888126def000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055fd4eb756d8 CR3: 000000000d3a8000 CR4: 00000000003526f0