assertion failed: list_empty(&fs_info->delayed_iputs), in fs/btrfs/disk-io.c:4452 ------------[ cut here ]------------ kernel BUG at fs/btrfs/ctree.h:3475! Internal error: Oops - BUG: 0 [#1] PREEMPT SMP Modules linked in: CPU: 1 PID: 3996 Comm: syz-executor.4 Not tainted 5.15.118-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/25/2023 pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : assertfail+0x28/0x2c fs/btrfs/ctree.h:3474 lr : assertfail+0x28/0x2c fs/btrfs/ctree.h:3474 sp : ffff80001c8d77f0 x29: ffff80001c8d77f0 x28: 1fffe0001ca4da5b x27: dfff800000000000 x26: ffff70000391af04 x25: 1fffe0001ca4d9f4 x24: 0000000000000000 x23: 1fffe0001ca4db3a x22: ffff0000e526cf98 x21: ffff0000e526cd28 x20: ffff0000e526c010 x19: ffff0000e526c000 x18: 0000000000000001 x17: ff80800008335ea8 x16: ffff8000119547c4 x15: ffff800008335ea8 x14: 00000000ffffffff x13: ffffffffffffffff x12: 0000000000000000 x11: ff8080000832d950 x10: 0000000000000000 x9 : f222249de72d9800 x8 : f222249de72d9800 x7 : 0000000000000001 x6 : 0000000000000001 x5 : ffff80001c8d6f58 x4 : ffff8000149cfca0 x3 : ffff80000a955620 x2 : ffff0001b4819d10 x1 : 0000000100000000 x0 : 0000000000000051 Call trace: assertfail+0x28/0x2c fs/btrfs/ctree.h:3474 close_ctree+0x73c/0x860 fs/btrfs/disk-io.c:4452 btrfs_put_super+0x40/0x50 fs/btrfs/super.c:340 generic_shutdown_super+0x130/0x29c fs/super.c:475 kill_anon_super+0x4c/0x74 fs/super.c:1067 btrfs_kill_super+0x40/0x58 fs/btrfs/super.c:2391 deactivate_locked_super+0xb8/0x13c fs/super.c:335 deactivate_super+0x108/0x128 fs/super.c:366 cleanup_mnt+0x3c0/0x474 fs/namespace.c:1143 __cleanup_mnt+0x20/0x30 fs/namespace.c:1150 task_work_run+0x130/0x1e4 kernel/task_work.c:164 tracehook_notify_resume include/linux/tracehook.h:189 [inline] do_notify_resume+0x262c/0x32b8 arch/arm64/kernel/signal.c:946 prepare_exit_to_user_mode arch/arm64/kernel/entry-common.c:133 [inline] exit_to_user_mode arch/arm64/kernel/entry-common.c:138 [inline] el0_svc+0xfc/0x1f0 arch/arm64/kernel/entry-common.c:597 el0t_64_sync_handler+0x84/0xe4 arch/arm64/kernel/entry-common.c:614 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584 Code: 91070000 b0002942 91230042 97fff928 (d4210000) ---[ end trace 07ae02ee7fab9f43 ]---