EXT4-fs (loop3): unmounting filesystem 00000000-0000-0000-0000-000000000000.
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WARNING: fs/ext4/super.c:1322 at ext4_put_super+0xbe7/0xf30, CPU#0: syz-executor.3/283
Modules linked in:
CPU: 0 UID: 0 PID: 283 Comm: syz-executor.3 Tainted: G        W           6.17.0-rc3-next-20250829 #1 PREEMPT(voluntary) 
Tainted: [W]=WARN
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014
RIP: 0010:ext4_put_super+0xbe7/0xf30
Code: 7c ff 48 8d bd 00 02 00 00 e8 75 aa 66 00 31 ff 49 89 c4 48 89 c6 e8 08 c9 7c ff 4d 85 e4 0f 84 ff f9 ff ff e8 9a cd 7c ff 90 <0f> 0b 90 e9 f1 f9 ff ff e8 8c cd 7c ff 4c 89 ef e8 b4 09 4b ff c7
RSP: 0018:ffff888017707d08 EFLAGS: 00010293
RAX: 0000000000000000 RBX: ffff88801730a000 RCX: ffffffff81f719d8
RDX: ffff888016050000 RSI: ffffffff81f719e6 RDI: 0000000000000007
RBP: ffff88801c94a000 R08: 0000000000000001 R09: 0000000000000001
R10: 0000000000000002 R11: 0000000000000001 R12: 0000000000000002
R13: 0000000000000001 R14: ffff88801730a618 R15: 0000000000000000
FS:  000055558dc8b400(0000) GS:ffff8880e55dd000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007feb79a84580 CR3: 000000004012d000 CR4: 0000000000350ef0
Call Trace:
 <TASK>
 generic_shutdown_super+0x15a/0x4a0
 kill_block_super+0x3b/0x90
 ext4_kill_sb+0x6c/0xb0
 deactivate_locked_super+0xbf/0x1a0
 deactivate_super+0xb1/0xd0
 cleanup_mnt+0x2df/0x430
 task_work_run+0x172/0x280
 exit_to_user_mode_loop+0xef/0x110
 do_syscall_64+0x2f7/0x360
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fcc697a9f87
Code: ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 66 0f 1f 44 00 00 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 01 f0 ff ff 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffdef596ee8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: 0000000000000000 RBX: 000000000000000e RCX: 00007fcc697a9f87
RDX: 00007ffdef596fb9 RSI: 000000000000000a RDI: 00007ffdef596fb0
RBP: 00007ffdef596fb0 R08: 00000000ffffffff R09: 00007ffdef596d80
R10: 000055558dc8cc7b R11: 0000000000000246 R12: 00007fcc69802105
R13: 00007ffdef598070 R14: 000055558dc8cc20 R15: 00007ffdef5980b0
 </TASK>
irq event stamp: 170443
hardirqs last  enabled at (170451): [<ffffffff81541b18>] __up_console_sem+0x78/0x80
hardirqs last disabled at (170464): [<ffffffff81541afd>] __up_console_sem+0x5d/0x80
softirqs last  enabled at (170280): [<ffffffff813bafcc>] handle_softirqs+0x50c/0x770
softirqs last disabled at (170197): [<ffffffff813bb364>] __irq_exit_rcu+0xc4/0x100
---[ end trace 0000000000000000 ]---
tmpfs: Bad value for 'mpol'
tmpfs: Bad value for 'mpol'