INFO: task syz-executor.0:13271 blocked for more than 143 seconds.
      Not tainted 5.12.0-rc2-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.0  state:D stack:26448 pid:13271 ppid:  8410 flags:0x00004004
Call Trace:
 context_switch kernel/sched/core.c:4324 [inline]
 __schedule+0x90c/0x21a0 kernel/sched/core.c:5075
 schedule+0xcf/0x270 kernel/sched/core.c:5154
 io_uring_cancel_files fs/io_uring.c:8699 [inline]
 io_uring_cancel_task_requests+0x9d9/0xc40 fs/io_uring.c:8730
 __io_uring_files_cancel+0x110/0x1b0 fs/io_uring.c:8816
 io_uring_files_cancel include/linux/io_uring.h:47 [inline]
 do_exit+0x299/0x2a60 kernel/exit.c:780
 do_group_exit+0x125/0x310 kernel/exit.c:922
 get_signal+0x42c/0x2100 kernel/signal.c:2773
 arch_do_signal_or_restart+0x2a8/0x1eb0 arch/x86/kernel/signal.c:811
 handle_signal_work kernel/entry/common.c:147 [inline]
 exit_to_user_mode_loop kernel/entry/common.c:171 [inline]
 exit_to_user_mode_prepare+0x148/0x250 kernel/entry/common.c:208
 __syscall_exit_to_user_mode_work kernel/entry/common.c:290 [inline]
 syscall_exit_to_user_mode+0x19/0x50 kernel/entry/common.c:301
 entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x465f69
RSP: 002b:00007fa79badc188 EFLAGS: 00000246 ORIG_RAX: 00000000000001aa
RAX: 0000000000000302 RBX: 000000000056bf60 RCX: 0000000000465f69
RDX: 0000000000000000 RSI: 0000000000000302 RDI: 0000000000000004
RBP: 00000000004bfa3f R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056bf60
R13: 00007ffe5c5307bf R14: 00007fa79badc300 R15: 0000000000022000

Showing all locks held in the system:
1 lock held by khungtaskd/1655:
 #0: ffffffff8bf71760 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x53/0x260 kernel/locking/lockdep.c:6327
1 lock held by in:imklog/8109:
 #0: ffff888029d7d430 (&f->f_pos_lock){+.+.}-{3:3}, at: __fdget_pos+0xe9/0x100 fs/file.c:961

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

NMI backtrace for cpu 0
CPU: 0 PID: 1655 Comm: khungtaskd Not tainted 5.12.0-rc2-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 __dump_stack lib/dump_stack.c:79 [inline]
 dump_stack+0x141/0x1d7 lib/dump_stack.c:120
 nmi_cpu_backtrace.cold+0x44/0xd7 lib/nmi_backtrace.c:105
 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:209 [inline]
 watchdog+0xd48/0xfb0 kernel/hung_task.c:294
 kthread+0x3b1/0x4a0 kernel/kthread.c:292
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:294
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 8110 Comm: rs:main Q:Reg Not tainted 5.12.0-rc2-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:crc32c_pcl_intel_update+0x40/0x320 arch/x86/crypto/crc32c-intel_glue.c:165
Code: 24 e8 74 05 32 00 89 ee bf ff 01 00 00 e8 b8 0b 32 00 81 fd ff 01 00 00 0f 87 88 01 00 00 e8 57 05 32 00 48 8b 04 24 41 89 ec <48> 8d 48 08 48 b8 00 00 00 00 00 fc ff df 48 89 ca 48 89 4c 24 08
RSP: 0018:ffffc9000bdef698 EFLAGS: 00000293
RAX: ffffc9000bdef788 RBX: ffffffff8be186c0 RCX: 0000000000000000
RDX: ffff888011942380 RSI: ffffffff8140d039 RDI: 0000000000000003
RBP: 000000000000007c R08: 00000000000001ff R09: 0000000000000020
R10: ffffffff8140d028 R11: 0000000000000000 R12: 000000000000007c
R13: ffff88802fdb3b00 R14: 0000000000000000 R15: ffffc9000bdef788
FS:  00007fc2f6cc4700(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f3a41368000 CR3: 000000002a2ea000 CR4: 00000000001506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace: