INFO: task syz-executor.5:25452 blocked for more than 143 seconds.
      Not tainted 5.16.0-rc4-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.5  state:D stack:27920 pid:25452 ppid:  6594 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:9877
 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: 0033:0x7f15272ffaf9
RSP: 002b:00007f1526254218 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: 0000000000000001 RBX: 00007f1527413030 RCX: 00007f15272ffaf9
RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00007f1527413034
RBP: 00007f1527413028 R08: 000000000000000e R09: 0000000000000000
R10: 000000000000008e R11: 0000000000000246 R12: 00007f1527413034
R13: 00007f1527946b2f R14: 00007f1526254300 R15: 0000000000022000
 </TASK>

Showing all locks held in the system:
1 lock held by khungtaskd/27:
 #0: ffffffff8bb83d20 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x53/0x260 kernel/locking/lockdep.c:6458

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

NMI backtrace for cpu 0
CPU: 0 PID: 27 Comm: khungtaskd Not tainted 5.16.0-rc4-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 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 6530 Comm: syz-fuzzer Not tainted 5.16.0-rc4-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0033:0x4168e8
Code: 49 c1 eb 1a 4d 39 dc 0f 84 5a 08 00 00 4c 89 c3 31 f6 4c 89 a4 24 98 00 00 00 4c 89 9c 24 90 00 00 00 48 89 8c 24 88 00 00 00 <45> 0f b6 69 17 41 f6 c5 40 0f 85 bf 07 00 00 49 8b 31 48 8b 84 24
RSP: 002b:000000c024d5d430 EFLAGS: 00000246
RAX: 0000000000203002 RBX: 000000c009702810 RCX: 0000000000203002
RDX: 0000000000000030 RSI: 00007f83b4266fff RDI: 0000000000000002
RBP: 000000c024d5d4f8 R08: 00007f83b411f140 R09: 00000000007144e0
R10: 00000000008db7a2 R11: 0000000000203002 R12: 0000000000203002
R13: 00007fffffffffff R14: 000000000000002b R15: 00000000000000aa
FS:  000000c00033a490 GS:  0000000000000000