tblock:ffffc900027011c0: 00000000 dead4ead ffffffff 00000000
tblock:ffffc900027011d0: ffffffff ffffffff 9991d7c0 ffffffff
tblock:ffffc900027011e0: 00000000 00000000 00000000 00000000
tblock:ffffc900027011f0: 8ba38b40 ffffffff 00000300 00000000
tblock:ffffc90002701200: 02701200 ffffc900 02701200 ffffc900
tblock:ffffc90002701210: 58a416a0 ffff8880 00000000 00000000
VFS: Busy inodes after unmount of loop1 (jfs)
------------[ cut here ]------------
kernel BUG at fs/super.c:652!
Oops: invalid opcode: 0000 [#1] SMP KASAN PTI
CPU: 0 UID: 0 PID: 6963 Comm: syz-executor Not tainted 6.15.0-rc4-syzkaller-00051-g7a13c14ee59d #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025
RIP: 0010:generic_shutdown_super+0x2bc/0x2c0 fs/super.c:650
Code: 03 42 80 3c 28 00 74 08 4c 89 f7 e8 6e 3a ef ff 49 8b 16 48 81 c3 68 06 00 00 48 c7 c7 a0 e0 78 8b 48 89 de e8 75 38 f7 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:ffffc90003cb7b80 EFLAGS: 00010246
RAX: 000000000000002d RBX: ffff888011cfe668 RCX: ca8487edbfb72600
RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000
RBP: 1ffff1100239fcf0 R08: ffffc90003cb7867 R09: 1ffff92000796f0c
R10: dffffc0000000000 R11: fffff52000796f0d R12: 0000000000000000
R13: dffffc0000000000 R14: ffffffff8e35afe0 R15: ffff888011cfe780
FS:  0000000000000000(0000) GS:ffff888126100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f270afffe00 CR3: 000000002f55c000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 kill_block_super+0x44/0x90 fs/super.c:1710
 deactivate_locked_super+0xb9/0x130 fs/super.c:473
 cleanup_mnt+0x425/0x4c0 fs/namespace.c:1435
 task_work_run+0x1d1/0x260 kernel/task_work.c:227
 exit_task_work include/linux/task_work.h:40 [inline]
 do_exit+0x8d6/0x2550 kernel/exit.c:953
 do_group_exit+0x21c/0x2d0 kernel/exit.c:1102
 __do_sys_exit_group kernel/exit.c:1113 [inline]
 __se_sys_exit_group kernel/exit.c:1111 [inline]
 __x64_sys_exit_group+0x3f/0x40 kernel/exit.c:1111
 x64_sys_call+0x21ba/0x21c0 arch/x86/include/generated/asm/syscalls_64.h:232
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xf6/0x210 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f9fc7b8e969
Code: Unable to access opcode bytes at 0x7f9fc7b8e93f.
RSP: 002b:00007ffdefe94528 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
RAX: ffffffffffffffda RBX: 00007f9fc7c108c2 RCX: 00007f9fc7b8e969
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000001
RBP: 0000000000000002 R08: 00007ffdefe922c7 R09: 00007ffdefe957e0
R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffdefe957e0
R13: 00007f9fc7c1089d R14: 00000000000340a4 R15: 00007ffdefe979a0
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:generic_shutdown_super+0x2bc/0x2c0 fs/super.c:650
Code: 03 42 80 3c 28 00 74 08 4c 89 f7 e8 6e 3a ef ff 49 8b 16 48 81 c3 68 06 00 00 48 c7 c7 a0 e0 78 8b 48 89 de e8 75 38 f7 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:ffffc90003cb7b80 EFLAGS: 00010246
RAX: 000000000000002d RBX: ffff888011cfe668 RCX: ca8487edbfb72600
RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000
RBP: 1ffff1100239fcf0 R08: ffffc90003cb7867 R09: 1ffff92000796f0c
R10: dffffc0000000000 R11: fffff52000796f0d R12: 0000000000000000
R13: dffffc0000000000 R14: ffffffff8e35afe0 R15: ffff888011cfe780
FS:  0000000000000000(0000) GS:ffff888126100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f270b3f0000 CR3: 0000000068764000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400