loop7: detected capacity change from 0 to 142388
iso9660: Unknown parameter 'euid>00000000000000000000'
loop0: detected capacity change from 0 to 264192
loop6: detected capacity change from 0 to 264192
------------[ cut here ]------------
WARNING: fs/namespace.c:1375 at cleanup_mnt+0x33f/0x430, CPU#0: syz-executor.7/4067
Modules linked in:
CPU: 0 UID: 0 PID: 4067 Comm: syz-executor.7 Tainted: G        W           6.17.0-rc4-next-20250901 #1 PREEMPT(voluntary) 
Tainted: [W]=WARN
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014
RIP: 0010:cleanup_mnt+0x33f/0x430
Code: c7 20 49 d1 85 e8 41 b3 fa 02 49 8d 7d 40 5b 48 c7 c6 d0 fa be 81 5d 41 5c 41 5d 41 5e 41 5f e9 97 9a 9c ff e8 f2 3c b4 ff 90 <0f> 0b 90 e9 e6 fc ff ff e8 e4 3c b4 ff 4c 89 ef e8 6c d7 06 00 e9
RSP: 0018:ffff88803e297e20 EFLAGS: 00010216
nfs4: Unknown parameter '@'
RAX: 0000000000000b5b RBX: 0000000000000001 RCX: ffffc9000a84d000
RDX: 0000000000040000 RSI: ffffffff81bfb9be RDI: 0000000000000005
RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000001
R10: 0000000000000001 R11: 0000000000000001 R12: ffff88800fce88d8
R13: ffff888016cc8fc0 R14: 0000000000000001 R15: ffff888016cc9000
FS:  00007f6314219700(0000) GS:ffff8880e55d8000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fed9697b004 CR3: 000000000f2df000 CR4: 0000000000350ef0
loop0: detected capacity change from 0 to 8
Call Trace:
 <TASK>
 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: 0033:0x7f6316ca504a
Code: 48 c7 c2 bc ff ff ff f7 d8 64 89 02 b8 ff ff ff ff eb d2 e8 b8 04 00 00 0f 1f 84 00 00 00 00 00 49 89 ca b8 a5 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:00007f6314218fa8 EFLAGS: 00000206 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffec RBX: 0000000020000c80 RCX: 00007f6316ca504a
RDX: 0000000020000900 RSI: 0000000020000940 RDI: 00007f6314219000
RBP: 00007f6314219040 R08: 00007f6314219040 R09: 0000000020000900
R10: 0000000000003000 R11: 0000000000000206 R12: 0000000020000900
R13: 0000000020000940 R14: 00007f6314219000 R15: 0000000020000d00
 </TASK>
irq event stamp: 2033
hardirqs last  enabled at (2041): [<ffffffff81541b18>] __up_console_sem+0x78/0x80
hardirqs last disabled at (2050): [<ffffffff81541afd>] __up_console_sem+0x5d/0x80
softirqs last  enabled at (2074): [<ffffffff813bafcc>] handle_softirqs+0x50c/0x770
softirqs last disabled at (2059): [<ffffffff813bb364>] __irq_exit_rcu+0xc4/0x100
---[ end trace 0000000000000000 ]---
loop6: detected capacity change from 0 to 4
kmemleak: Found object by alias at 0x607f1a63e39c
CPU: 1 UID: 0 PID: 4071 Comm: syz-executor.4 Tainted: G        W           6.17.0-rc4-next-20250901 #1 PREEMPT(voluntary) 
Tainted: [W]=WARN
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014
Call Trace:
 <TASK>
 dump_stack_lvl+0xca/0x120
 __lookup_object+0x94/0xb0
 delete_object_full+0x27/0x70
 free_percpu+0x30/0x1160
 futex_hash_free+0x38/0xc0
 mmput+0x2d3/0x390
 do_exit+0x79d/0x2970
 do_group_exit+0xd3/0x2a0
 get_signal+0x2315/0x2340
 arch_do_signal_or_restart+0x80/0x790
 exit_to_user_mode_loop+0x8b/0x110
 do_syscall_64+0x2f7/0x360
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f3439254b19
Code: Unable to access opcode bytes at 0x7f3439254aef.
RSP: 002b:00007f34367ca218 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: 0000000000000001 RBX: 00007f3439367f68 RCX: 00007f3439254b19
RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00007f3439367f6c
RBP: 00007f3439367f60 R08: 0000000000000001 R09: 0000000000000000
R10: ffffffffffffffff R11: 0000000000000246 R12: 00007f3439367f6c
R13: 00007ffd7755777f R14: 00007f34367ca300 R15: 0000000000022000
 </TASK>
kmemleak: Object (percpu) 0x607f1a63e398 (size 8):
kmemleak:   comm "syz-executor.7", pid 4067, jiffies 4294825036
kmemleak:   min_count = 1
kmemleak:   count = 0
kmemleak:   flags = 0x21
kmemleak:   checksum = 0
kmemleak:   backtrace:
 pcpu_alloc_noprof+0x87a/0x1170
 alloc_vfsmnt+0x135/0x6e0
 clone_mnt+0x6c/0xb70
 __do_loopback+0x438/0x520
 path_mount+0x19b4/0x1dd0
 __x64_sys_mount+0x27b/0x300
 do_syscall_64+0xbf/0x360
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
loop1: detected capacity change from 0 to 116
SELinux: security_context_str_to_sid (unconfined_u) failed with errno=-22
loop6: detected capacity change from 0 to 16383
EXT4-fs: test_dummy_encryption option not supported
loop6: detected capacity change from 0 to 49
ext2: Unknown parameter 'euid<00000000000000060928'
loop1: detected capacity change from 0 to 116
SELinux: security_context_str_to_sid (unconfined_u) failed with errno=-22