INFO: task syz-executor.5:13690 blocked for more than 143 seconds.
      Not tainted 6.1.0-syzkaller-12698-gb6bb9676f216 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.5  state:D stack:27240 pid:13690 ppid:5146   flags:0x00004006
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5244 [inline]
 __schedule+0x9d1/0xe40 kernel/sched/core.c:6555
 schedule+0xcb/0x190 kernel/sched/core.c:6631
 perf_event_free_task+0x525/0x620 kernel/events/core.c:13154
 copy_process+0x2e63/0x3ec0 kernel/fork.c:2551
 kernel_clone+0x227/0x640 kernel/fork.c:2681
 __do_sys_clone kernel/fork.c:2822 [inline]
 __se_sys_clone kernel/fork.c:2806 [inline]
 __x64_sys_clone+0x276/0x2e0 kernel/fork.c:2806
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x2b/0x70 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x4603b9
RSP: 002b:00007f593d287198 EFLAGS: 00000246 ORIG_RAX: 0000000000000038
RAX: ffffffffffffffda RBX: 000000000052bf00 RCX: 00000000004603b9
RDX: 9999999999999999 RSI: 0000000000000000 RDI: 0000002102001ff9
RBP: 00000000004a9a99 R08: ffffffffffffffff R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff
R13: 0000000000000005 R14: 00000000004aa8e8 R15: 00007f593d2876bc
 </TASK>

Showing all locks held in the system:
1 lock held by rcu_tasks_kthre/12:
 #0: ffffffff8d523910 (rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x30/0xd00 kernel/rcu/tasks.h:507
1 lock held by rcu_tasks_trace/13:
 #0: ffffffff8d524110 (rcu_tasks_trace.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x30/0xd00 kernel/rcu/tasks.h:507
1 lock held by khungtaskd/28:
 #0: ffffffff8d523740 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0x0/0x30
2 locks held by getty/4740:
 #0: ffff888017b3c098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x21/0x70 drivers/tty/tty_ldisc.c:244
 #1: ffffc900015802f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6e8/0x1e50 drivers/tty/n_tty.c:2177

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

NMI backtrace for cpu 0
CPU: 0 PID: 28 Comm: khungtaskd Not tainted 6.1.0-syzkaller-12698-gb6bb9676f216 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0x1e3/0x2d0 lib/dump_stack.c:106
 nmi_cpu_backtrace+0x4e3/0x560 lib/nmi_backtrace.c:111
 nmi_trigger_cpumask_backtrace+0x19b/0x3e0 lib/nmi_backtrace.c:62
 trigger_all_cpu_backtrace include/linux/nmi.h:148 [inline]
 check_hung_uninterruptible_tasks kernel/hung_task.c:220 [inline]
 watchdog+0xcd5/0xd20 kernel/hung_task.c:377
 kthread+0x266/0x300 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308
 </TASK>
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 41 Comm: kworker/u4:2 Not tainted 6.1.0-syzkaller-12698-gb6bb9676f216 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022
Workqueue: events_unbound toggle_allocation_gate
RIP: 0010:rcu_read_unlock_sched_notrace include/linux/rcupdate.h:886 [inline]
RIP: 0010:trace_lock_acquire+0xa3/0x260 include/trace/events/lock.h:24
Code: 03 80 3c 18 00 74 0c 48 c7 c7 40 8e 9c 8e e8 c4 dc 77 00 48 8b 05 5d f9 2f 0d e8 78 5c 08 00 85 c0 74 18 65 ff 0d 55 03 97 7e <74> 49 48 83 c4 08 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 57 96 58 09
RSP: 0018:ffffc90000b277f8 EFLAGS: 00000282
RAX: 0000000000000001 RBX: dffffc0000000000 RCX: 0000000080000002
RDX: 0000000000000000 RSI: ffffffff8b0da9e0 RDI: ffffffff8b697600
RBP: 0000000000000001 R08: dffffc0000000000 R09: fffffbfff1d603be
R10: fffffbfff1d603be R11: 1ffffffff1d603bd R12: dffffc0000000000
R13: 1ffff92000164f10 R14: ffffffff8d5bfcc8 R15: 0000000000000000
FS:  0000000000000000(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000c000527010 CR3: 000000000d28e000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 lock_acquire+0xa5/0x400 kernel/locking/lockdep.c:5639
 __mutex_lock_common+0x1de/0x26c0 kernel/locking/mutex.c:603
 __mutex_lock kernel/locking/mutex.c:747 [inline]
 mutex_lock_nested+0x17/0x20 kernel/locking/mutex.c:799
 jump_label_lock kernel/jump_label.c:27 [inline]
 static_key_disable_cpuslocked+0x95/0x1b0 kernel/jump_label.c:233
 static_key_disable+0x16/0x20 kernel/jump_label.c:243
 toggle_allocation_gate+0x1b8/0x250 mm/kfence/core.c:804
 process_one_work+0x81c/0xd10 kernel/workqueue.c:2289
 worker_thread+0xb14/0x1330 kernel/workqueue.c:2436
 kthread+0x266/0x300 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308
 </TASK>