INFO: task syz-executor.0:8353 blocked for more than 143 seconds.
      Not tainted 5.16.0-rc2-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.0  state:D stack:27704 pid: 8353 ppid:  4567 flags:0x00024004
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:4972 [inline]
 __schedule+0xa9a/0x4940 kernel/sched/core.c:6253
 schedule+0xd2/0x260 kernel/sched/core.c:6326
 io_uring_cancel_generic+0x53d/0x690 fs/io_uring.c:9846
 io_uring_files_cancel include/linux/io_uring.h:16 [inline]
 do_exit+0x60c/0x2b40 kernel/exit.c:787
 do_group_exit+0x125/0x310 kernel/exit.c:929
 get_signal+0x47d/0x2220 kernel/signal.c:2852
 arch_do_signal_or_restart+0x2a9/0x1c40 arch/x86/kernel/signal.c:868
 handle_signal_work kernel/entry/common.c:148 [inline]
 exit_to_user_mode_loop kernel/entry/common.c:172 [inline]
 exit_to_user_mode_prepare+0x17d/0x290 kernel/entry/common.c:207
 __syscall_exit_to_user_mode_work kernel/entry/common.c:289 [inline]
 syscall_exit_to_user_mode+0x19/0x60 kernel/entry/common.c:300
 do_syscall_64+0x42/0xb0 arch/x86/entry/common.c:86
 entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7f01cac13ae9
RSP: 002b:00007f01c8189218 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: fffffffffffffe00 RBX: 00007f01cad26f68 RCX: 00007f01cac13ae9
RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007f01cad26f68
RBP: 00007f01cad26f60 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f01cad26f6c
R13: 00007fff4994c26f R14: 00007f01c8189300 R15: 0000000000022000
 </TASK>

Showing all locks held in the system:
1 lock held by khungtaskd/27:
 #0: ffffffff8bb83ca0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x53/0x260 kernel/locking/lockdep.c:6458
1 lock held by systemd-journal/2948:
1 lock held by in:imklog/6215:
 #0: ffff88801a22fc70 (&f->f_pos_lock){+.+.}-{3:3}, at: __fdget_pos+0xe9/0x100 fs/file.c:990

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

NMI backtrace for cpu 1
CPU: 1 PID: 27 Comm: khungtaskd Not tainted 5.16.0-rc2-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0xcd/0x134 lib/dump_stack.c:106
 nmi_cpu_backtrace.cold+0x47/0x144 lib/nmi_backtrace.c:111
 nmi_trigger_cpumask_backtrace+0x1b3/0x230 lib/nmi_backtrace.c:62
 trigger_all_cpu_backtrace include/linux/nmi.h:146 [inline]
 check_hung_uninterruptible_tasks kernel/hung_task.c:210 [inline]
 watchdog+0xc1d/0xf50 kernel/hung_task.c:295
 kthread+0x405/0x4f0 kernel/kthread.c:327
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295
 </TASK>
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 5956 Comm: kworker/u4:2 Not tainted 5.16.0-rc2-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue:  0x0 (events_unbound)
RIP: 0010:lock_unpin_lock+0x27d/0x3c0 kernel/locking/lockdep.c:5739
Code: 41 89 46 24 0f 88 bc 00 00 00 48 c7 c7 e0 0f ac 89 e8 b7 2e e8 07 b8 ff ff ff ff 65 0f c1 05 5a bc a6 7e 83 f8 01 75 63 9c 58 <f6> c4 02 75 55 48 f7 44 24 08 00 02 00 00 74 01 fb 48 b8 00 00 00
RSP: 0018:ffffc90012a37ad8 EFLAGS: 00000046
RAX: 0000000000000046 RBX: ffff8880b9c39a98 RCX: 0000000000000000
RDX: 0000000000000000 RSI: 0000000000000002 RDI: 0000000000000000
RBP: ffff88801a4ae184 R08: 0000000000000000 R09: 0000000000000000
R10: fffffbfff1b22438 R11: 0000000000000001 R12: ffffed1003495c2b
R13: ffff88801a4ae160 R14: ffff88801a4ae160 R15: 0000000000000000
FS:  0000000000000000(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fba5186e010 CR3: 000000000b88e000 CR4: 0000000000350ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 <TASK>
 rq_unpin_lock kernel/sched/sched.h:1555 [inline]
 newidle_balance+0x31c/0x1190 kernel/sched/fair.c:10893
 pick_next_task_fair+0x96/0xe00 kernel/sched/fair.c:7347
 __pick_next_task kernel/sched/core.c:5593 [inline]
 pick_next_task kernel/sched/core.c:5665 [inline]
 __schedule+0x3e8/0x4940 kernel/sched/core.c:6217
 schedule+0xd2/0x260 kernel/sched/core.c:6326
 worker_thread+0x15c/0x11f0 kernel/workqueue.c:2466
 kthread+0x405/0x4f0 kernel/kthread.c:327
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295
 </TASK>
----------------
Code disassembly (best guess):
   0:	41 89 46 24          	mov    %eax,0x24(%r14)
   4:	0f 88 bc 00 00 00    	js     0xc6
   a:	48 c7 c7 e0 0f ac 89 	mov    $0xffffffff89ac0fe0,%rdi
  11:	e8 b7 2e e8 07       	callq  0x7e82ecd
  16:	b8 ff ff ff ff       	mov    $0xffffffff,%eax
  1b:	65 0f c1 05 5a bc a6 	xadd   %eax,%gs:0x7ea6bc5a(%rip)        # 0x7ea6bc7d
  22:	7e
  23:	83 f8 01             	cmp    $0x1,%eax
  26:	75 63                	jne    0x8b
  28:	9c                   	pushfq
  29:	58                   	pop    %rax
* 2a:	f6 c4 02             	test   $0x2,%ah <-- trapping instruction
  2d:	75 55                	jne    0x84
  2f:	48 f7 44 24 08 00 02 	testq  $0x200,0x8(%rsp)
  36:	00 00
  38:	74 01                	je     0x3b
  3a:	fb                   	sti
  3b:	48                   	rex.W
  3c:	b8                   	.byte 0xb8
  3d:	00 00                	add    %al,(%rax)