XFS (loop0): Unmounting Filesystem
ieee802154 phy0 wpan0: encryption failed: -22
ieee802154 phy1 wpan1: encryption failed: -22
ieee802154 phy0 wpan0: encryption failed: -22
ieee802154 phy1 wpan1: encryption failed: -22
INFO: task syz-executor.5:8115 blocked for more than 140 seconds.
      Not tainted 4.19.211-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
syz-executor.5  D23688  8115      1 0x00000004
Call Trace:
 context_switch kernel/sched/core.c:2828 [inline]
 __schedule+0x887/0x2040 kernel/sched/core.c:3517
 schedule+0x8d/0x1b0 kernel/sched/core.c:3561
 xlog_grant_head_wait+0x13b/0xcd0 fs/xfs/xfs_log.c:263
 xlog_grant_head_check+0x3c8/0x420 fs/xfs/xfs_log.c:325
 xfs_log_reserve+0x347/0xa70 fs/xfs/xfs_log.c:454
 xfs_log_write_unmount_record+0x147/0x850 fs/xfs/xfs_log.c:854
 xfs_log_unmount_write fs/xfs/xfs_log.c:953 [inline]
 xfs_log_quiesce+0x4a4/0x570 fs/xfs/xfs_log.c:1020
 xfs_log_unmount+0x1d/0xb0 fs/xfs/xfs_log.c:1034
 xfs_unmountfs+0x1b8/0x2b0 fs/xfs/xfs_mount.c:1173
 xfs_fs_put_super+0x62/0x130 fs/xfs/xfs_super.c:1774
 generic_shutdown_super+0x144/0x370 fs/super.c:456
 kill_block_super+0x97/0xf0 fs/super.c:1185
 deactivate_locked_super+0x94/0x160 fs/super.c:329
 deactivate_super+0x174/0x1a0 fs/super.c:360
 cleanup_mnt+0x1a8/0x290 fs/namespace.c:1098
 task_work_run+0x148/0x1c0 kernel/task_work.c:113
 tracehook_notify_resume include/linux/tracehook.h:193 [inline]
 exit_to_usermode_loop+0x251/0x2a0 arch/x86/entry/common.c:167
 prepare_exit_to_usermode arch/x86/entry/common.c:198 [inline]
 syscall_return_slowpath arch/x86/entry/common.c:271 [inline]
 do_syscall_64+0x538/0x620 arch/x86/entry/common.c:296
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x7f52414fb567
Code: Bad RIP value.
RSP: 002b:00007fffa5401148 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007f52414fb567
RDX: 00007fffa540121c RSI: 000000000000000a RDI: 00007fffa5401210
RBP: 00007fffa5401210 R08: 00000000ffffffff R09: 00007fffa5400fe0
R10: 00005555569ec903 R11: 0000000000000246 R12: 00007f5241554b24
R13: 00007fffa54022d0 R14: 00005555569ec810 R15: 00007fffa5402310

Showing all locks held in the system:
1 lock held by khungtaskd/1566:
 #0: 000000006b77ccf9 (rcu_read_lock){....}, at: debug_show_all_locks+0x53/0x265 kernel/locking/lockdep.c:4441
1 lock held by syz-executor.5/8115:
 #0: 00000000ea1af2cf (&type->s_umount_key#51){+.+.}, at: deactivate_super+0x16c/0x1a0 fs/super.c:359
3 locks held by kworker/u4:0/21863:

=============================================

NMI backtrace for cpu 1
CPU: 1 PID: 1566 Comm: khungtaskd Not tainted 4.19.211-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/21/2023
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x1fc/0x2ef lib/dump_stack.c:118
 nmi_cpu_backtrace.cold+0x63/0xa2 lib/nmi_backtrace.c:101
 nmi_trigger_cpumask_backtrace+0x1a6/0x1f0 lib/nmi_backtrace.c:62
 trigger_all_cpu_backtrace include/linux/nmi.h:146 [inline]
 check_hung_uninterruptible_tasks kernel/hung_task.c:203 [inline]
 watchdog+0x991/0xe60 kernel/hung_task.c:287
 kthread+0x33f/0x460 kernel/kthread.c:259
 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:415
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0 skipped: idling at native_safe_halt+0xe/0x10 arch/x86/include/asm/irqflags.h:60