------------[ cut here ]------------
WARNING: CPU: 0 PID: 6496 at fs/namespace.c:1422 cleanup_mnt+0x37c/0x3ac fs/namespace.c:1422
Modules linked in:
CPU: 0 UID: 0 PID: 6496 Comm: syz-executor Not tainted 6.15.0-rc7-syzkaller-gd7fa1af5b33e #0 PREEMPT 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : cleanup_mnt+0x37c/0x3ac fs/namespace.c:1422
lr : cleanup_mnt+0x37c/0x3ac fs/namespace.c:1422
sp : ffff8000a1ae7c90
x29: ffff8000a1ae7ca0 x28: 00007dfeb25f83c4 x27: ffff80008f321e88
x26: ffffffffffffffff x25: dfff800000000000 x24: 1fffe00018fe1a03
x23: 0000000000000003 x22: 0000000000000000 x21: ffff0000c7f0d018
x20: 0000000000000001 x19: ffff0000c7f0cfc0 x18: 1fffe0003386aa76
x17: ffff80008f31e000 x16: ffff80008051cacc x15: 0000000000000001
x14: 1fffe00018ea0136 x13: 0000000000000000 x12: 0000000000000000
x11: ffff600018ea0137 x10: 0000000000ff0100 x9 : 0000000000000000
x8 : ffff0000c7500000 x7 : ffff80008043d81c x6 : 0000000000000000
x5 : 0000000000000001 x4 : 0000000000000001 x3 : 0000000000000010
x2 : ffff8000a1ae7d00 x1 : 0000000000000001 x0 : 0000000000000000
Call trace:
 cleanup_mnt+0x37c/0x3ac fs/namespace.c:1422 (P)
 __cleanup_mnt+0x20/0x30 fs/namespace.c:1438
 task_work_run+0x1dc/0x260 kernel/task_work.c:227
 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline]
 do_notify_resume+0x16c/0x1ec arch/arm64/kernel/entry-common.c:151
 exit_to_user_mode_prepare arch/arm64/kernel/entry-common.c:169 [inline]
 exit_to_user_mode arch/arm64/kernel/entry-common.c:178 [inline]
 el0_svc+0xb4/0x17c arch/arm64/kernel/entry-common.c:768
 el0t_64_sync_handler+0x78/0x108 arch/arm64/kernel/entry-common.c:786
 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:600
irq event stamp: 521392
hardirqs last  enabled at (521391): [<ffff80008addfad8>] __raw_spin_unlock_irq include/linux/spinlock_api_smp.h:159 [inline]
hardirqs last  enabled at (521391): [<ffff80008addfad8>] _raw_spin_unlock_irq+0x30/0x80 kernel/locking/spinlock.c:202
hardirqs last disabled at (521392): [<ffff80008adb9eb8>] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:511
softirqs last  enabled at (521020): [<ffff8000801fbf10>] local_bh_enable+0x10/0x34 include/linux/bottom_half.h:32
softirqs last disabled at (521018): [<ffff8000801fbedc>] local_bh_disable+0x10/0x34 include/linux/bottom_half.h:19
---[ end trace 0000000000000000 ]---