INFO: task syz-executor.2:11476 blocked for more than 143 seconds.
      Not tainted 5.16.0-rc1-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.2  state:D stack:28008 pid:11476 ppid:  6745 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:2830
 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: 0033:0x7f9ff1cdfae9
RSP: 002b:00007f9fef255218 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: fffffffffffffe00 RBX: 00007f9ff1df2f68 RCX: 00007f9ff1cdfae9
RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007f9ff1df2f68
RBP: 00007f9ff1df2f60 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f9ff1df2f6c
R13: 00007f9ff2326b2f R14: 00007f9fef255300 R15: 0000000000022000
 </TASK>

Showing all locks held in the system:
1 lock held by khungtaskd/27:
 #0: ffffffff8bb83a60 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x53/0x260 kernel/locking/lockdep.c:6458
1 lock held by in:imklog/6447:
 #0: ffff888077552af0 (&f->f_pos_lock){+.+.}-{3:3}, at: __fdget_pos+0xe9/0x100 fs/file.c:990
5 locks held by kworker/1:5/7769:
 #0: ffff8880b9d39a98 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x2b/0x120 kernel/sched/core.c:478
 #1: ffff8880b9d279c8 (&per_cpu_ptr(group->pcpu, cpu)->seq){-.-.}-{0:0}, at: psi_task_switch+0x3a6/0x490 kernel/sched/psi.c:880
 #2: ffff8880b9d28298 (&base->lock){-.-.}-{2:2}, at: lock_timer_base+0x5a/0x1f0 kernel/time/timer.c:946
 #3: ffff8880b9d28298 (&base->lock){-.-.}-{2:2}, at: lock_timer_base+0x5a/0x1f0 kernel/time/timer.c:946
 #4: ffffffff90719450 (&obj_hash[i].lock){-.-.}-{2:2}, at: debug_object_activate+0x12e/0x3e0 lib/debugobjects.c:661

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

NMI backtrace for cpu 0
CPU: 0 PID: 27 Comm: khungtaskd Not tainted 5.16.0-rc1-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:105
 nmi_trigger_cpumask_backtrace+0x1ae/0x220 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 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 14 Comm: rcu_preempt Not tainted 5.16.0-rc1-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:detach_timer kernel/time/timer.c:830 [inline]
RIP: 0010:detach_if_pending+0x1b0/0x470 kernel/time/timer.c:846
Code: 45 84 e4 74 0d e8 50 21 11 00 48 c7 43 08 00 00 00 00 e8 43 21 11 00 41 bc 01 00 00 00 48 b8 22 01 00 00 00 00 ad de 48 89 03 <e8> 2b 21 11 00 44 89 e0 5b 5d 41 5c 41 5d 41 5e c3 e8 1a 21 11 00
RSP: 0018:ffffc90000d37bb0 EFLAGS: 00000046
RAX: 0000000000000000 RBX: ffffc90000d37cc0 RCX: 0000000000000000
RDX: 1ffff920001a6f99 RSI: ffffffff8166c516 RDI: ffffc90000d37cc0
RBP: ffff8880b9d28280 R08: 000000000a400001 R09: 0000000000000003
R10: ffffffff8166513e R11: 0000000000000001 R12: 0000000000000000
R13: ffffc90000d37cc8 R14: 0000000000000000 R15: 0000000000000001
FS:  0000000000000000(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f9f1dbe1000 CR3: 000000001c2ec000 CR4: 00000000003526e0
Call Trace:
 <TASK>
 try_to_del_timer_sync+0xaa/0x110 kernel/time/timer.c:1234
 del_timer_sync+0x138/0x1b0 kernel/time/timer.c:1382
 schedule_timeout+0x152/0x2a0 kernel/time/timer.c:1882
 rcu_gp_fqs_loop+0x186/0x810 kernel/rcu/tree.c:1955
 rcu_gp_kthread+0x1de/0x320 kernel/rcu/tree.c:2128
 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:	45 84 e4             	test   %r12b,%r12b
   3:	74 0d                	je     0x12
   5:	e8 50 21 11 00       	callq  0x11215a
   a:	48 c7 43 08 00 00 00 	movq   $0x0,0x8(%rbx)
  11:	00
  12:	e8 43 21 11 00       	callq  0x11215a
  17:	41 bc 01 00 00 00    	mov    $0x1,%r12d
  1d:	48 b8 22 01 00 00 00 	movabs $0xdead000000000122,%rax
  24:	00 ad de
  27:	48 89 03             	mov    %rax,(%rbx)
* 2a:	e8 2b 21 11 00       	callq  0x11215a <-- trapping instruction
  2f:	44 89 e0             	mov    %r12d,%eax
  32:	5b                   	pop    %rbx
  33:	5d                   	pop    %rbp
  34:	41 5c                	pop    %r12
  36:	41 5d                	pop    %r13
  38:	41 5e                	pop    %r14
  3a:	c3                   	retq
  3b:	e8 1a 21 11 00       	callq  0x11215a