------------[ cut here ]------------ WARNING: CPU: 1 PID: 6450 at fs/namespace.c:1404 cleanup_mnt+0x3ac/0x3dc fs/namespace.c:1404 Modules linked in: CPU: 1 UID: 0 PID: 6450 Comm: syz-executor Not tainted 6.14.0-rc7-syzkaller-ga2392f333575 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025 pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : cleanup_mnt+0x3ac/0x3dc fs/namespace.c:1404 lr : cleanup_mnt+0x3ac/0x3dc fs/namespace.c:1404 sp : ffff8000a0bb7c90 x29: ffff8000a0bb7ca0 x28: 1fffe0001d8fc6e3 x27: 0000000000000008 x26: 0000000000000003 x25: dfff800000000000 x24: 00007dfe9ba5c574 x23: fffffdffbf704578 x22: 0000000000000008 x21: ffff0000ec7e3718 x20: 0000000000000003 x19: ffff0000ec7e36c0 x18: 1fffe000366f6086 x17: ffff80008fbbd000 x16: ffff8000803b975c x15: 0000000000000001 x14: 1fffe0001849f136 x13: ffff8000a0bb8000 x12: 0000000000000003 x11: 0000000000000001 x10: 0000000000ff0100 x9 : 0000000000000000 x8 : ffff0000c24f8000 x7 : ffff80008038b498 x6 : 0000000000000000 x5 : 0000000000000001 x4 : 0000000000000001 x3 : 0000000000000000 x2 : ffff0000c24f8000 x1 : 0000000000000003 x0 : 0000000000000000 Call trace: cleanup_mnt+0x3ac/0x3dc fs/namespace.c:1404 (P) __cleanup_mnt+0x20/0x30 fs/namespace.c:1420 task_work_run+0x230/0x2e0 kernel/task_work.c:227 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline] do_notify_resume+0x178/0x1f4 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+0xac/0x168 arch/arm64/kernel/entry-common.c:745 el0t_64_sync_handler+0x84/0x108 arch/arm64/kernel/entry-common.c:762 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:600 irq event stamp: 599300 hardirqs last enabled at (599299): [] __raw_spin_unlock_irq include/linux/spinlock_api_smp.h:159 [inline] hardirqs last enabled at (599299): [] _raw_spin_unlock_irq+0x30/0x80 kernel/locking/spinlock.c:202 hardirqs last disabled at (599300): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:488 softirqs last enabled at (599078): [] local_bh_enable+0x10/0x34 include/linux/bottom_half.h:32 softirqs last disabled at (599076): [] local_bh_disable+0x10/0x34 include/linux/bottom_half.h:19 ---[ end trace 0000000000000000 ]--- BTRFS info (device loop3): last unmount of filesystem 82feabd7-a783-42b7-864b-d9f170c92231