------------[ cut here ]------------
WARNING: fs/namespace.c:1375 at cleanup_mnt+0x33f/0x430, CPU#1: kworker/1:2/73
Modules linked in:
CPU: 1 UID: 0 PID: 73 Comm: kworker/1:2 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
Workqueue: events free_ipc
RIP: 0010:cleanup_mnt+0x33f/0x430
Code: c7 a0 45 d1 85 e8 01 7c fa 02 49 8d 7d 40 5b 48 c7 c6 10 e2 be 81 5d 41 5c 41 5d 41 5e 41 5f e9 57 b3 9c ff e8 82 46 b4 ff 90 <0f> 0b 90 e9 e6 fc ff ff e8 74 46 b4 ff 4c 89 ef e8 6c d7 06 00 e9
RSP: 0018:ffff88800ff2fb10 EFLAGS: 00010293
RAX: 0000000000000000 RBX: 0000000000000006 RCX: ffffffff81bf9de5
RDX: ffff88800ff20000 RSI: ffffffff81bfa0fe RDI: 0000000000000005
RBP: ffff888048228000 R08: 0000000000000000 R09: fffffbfff0b42d07
R10: 0000000000000006 R11: 0000000000000001 R12: 0000000000004000
R13: ffff888048228000 R14: ffff888048228060 R15: 0000000000000000
FS:  0000000000000000(0000) GS:ffff8880e56dd000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f0487076c20 CR3: 000000000d1f9000 CR4: 0000000000350ef0
Call Trace:
 <TASK>
 mntput_no_expire+0xa98/0xbe0
 mntput+0x6b/0x90
 free_ipc+0x179/0x2b0
 process_one_work+0x8e1/0x19c0
 worker_thread+0x67e/0xe90
 kthread+0x3c8/0x740
 ret_from_fork+0x34b/0x430
 ret_from_fork_asm+0x1a/0x30
 </TASK>
irq event stamp: 170309
hardirqs last  enabled at (170319): [<ffffffff81541b18>] __up_console_sem+0x78/0x80
hardirqs last disabled at (170330): [<ffffffff81541afd>] __up_console_sem+0x5d/0x80
softirqs last  enabled at (170070): [<ffffffff813bafcc>] handle_softirqs+0x50c/0x770
softirqs last disabled at (170065): [<ffffffff813bb364>] __irq_exit_rcu+0xc4/0x100
---[ end trace 0000000000000000 ]---
kmemleak: Found object by alias at 0x607f1a639228
CPU: 1 UID: 0 PID: 4018 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
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: 0033:0x7fed1d73b8e1
Code: Unable to access opcode bytes at 0x7fed1d73b8b7.
RSP: 002b:00007fed1ac8bee0 EFLAGS: 00000293 ORIG_RAX: 00000000000000e6
RAX: 0000000000000000 RBX: 00007fed1ac8c6bc RCX: 00007fed1d73b8e1
RDX: 00007fed1ac8bf20 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000004 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000010
R13: 0000000000000003 R14: 0000000020000338 R15: 000000000000000d
 </TASK>
kmemleak: Object (percpu) 0x607f1a639224 (size 8):
kmemleak:   comm "syz-executor.2", pid 4007, jiffies 4294820791
kmemleak:   min_count = 1
kmemleak:   count = 0
kmemleak:   flags = 0x21
kmemleak:   checksum = 0
kmemleak:   backtrace:
 pcpu_alloc_noprof+0x87a/0x1170
 alloc_vfsmnt+0x135/0x6e0
 vfs_create_mount.part.0+0x40/0x440
 fc_mount_longterm+0x126/0x160
 mq_init_ns+0x42e/0x630
 copy_ipcs+0x38d/0x630
 create_new_namespaces+0x210/0xab0
 copy_namespaces+0x45c/0x580
 copy_process+0x2649/0x73c0
 kernel_clone+0xea/0x7f0
 __do_sys_clone+0xce/0x120
 do_syscall_64+0xbf/0x360
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
loop2: detected capacity change from 0 to 2048
EXT4-fs (loop2): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: writeback.
EXT4-fs (loop2): unmounting filesystem 00000000-0000-0000-0000-000000000000.
Bluetooth: hci5: Controller not accepting commands anymore: ncmd = 0
Bluetooth: hci5: Injecting HCI hardware error event
Bluetooth: hci5: hardware error 0x00
Bluetooth: hci5: Opcode 0x0c03 failed: -110