rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	1-...!: (20 ticks this GP) idle=2c04/1/0x4000000000000000 softirq=47749/47752 fqs=10
rcu: 	(detected by 0, t=10502 jiffies, g=35685, q=1444 ncpus=2)
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 11101 Comm: syz.6.1346 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
RIP: 0010:lock_release+0x2cd/0x3e0
Code: 56 f7 c3 00 02 00 00 74 01 fb 65 48 8b 05 0b 5d 03 11 48 3b 44 24 28 0f 85 8b 00 00 00 48 83 c4 30 5b 41 5c 41 5d 41 5e 41 5f <5d> c3 cc cc cc cc cc 90 0f 0b 90 e9 5d fd ff ff 90 0f 0b 90 48 c7
RSP: 0018:ffffc900001df1b0 EFLAGS: 00000086
RAX: 7be04353f9160600 RBX: 0000000000000802 RCX: 7be04353f9160600
RDX: 0000000000000004 RSI: ffffffff8dbaa0c3 RDI: ffffffff8be34280
RBP: ffff888107430b90 R08: 0000000000000003 R09: 0000000000000004
R10: dffffc0000000000 R11: fffff5200003be28 R12: dffffc0000000000
R13: ffff888136627b00 R14: ffff888136627a80 R15: 1ffff9200003be38
FS:  00007f812cd4a6c0(0000) GS:ffff8881a3c12000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f2ca1e44fc8 CR3: 000000010dbda000 CR4: 00000000000006f0
DR0: 0000200000000300 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 <IRQ>
 _raw_spin_unlock_irqrestore+0x70/0x110
 hrtimer_try_to_cancel+0x3be/0x420
 hrtimer_cancel+0x3b/0x50
 cpu_clock_event_stop+0xd9/0x130
 __perf_event_overflow+0x580/0xe40
 perf_swevent_hrtimer+0x3c5/0x550
 __hrtimer_run_queues+0x4e0/0xc60
 hrtimer_interrupt+0x45b/0xaa0
 __sysvec_apic_timer_interrupt+0x10b/0x410
 sysvec_apic_timer_interrupt+0x52/0xc0
 asm_sysvec_apic_timer_interrupt+0x1a/0x20
RIP: 0010:is_bpf_text_address+0x138/0x2b0
Code: 2c 5b 48 f7 dd 4d 8d 24 2f 49 81 c4 e0 fd ff ff 4c 89 e0 48 c1 e8 03 42 80 3c 28 00 74 08 4c 89 e7 e8 0c 02 55 00 4d 8b 24 24 <4c> 89 e7 4c 89 f6 e8 9d 11 f1 ff 4d 39 f4 76 0c e8 33 0f f1 ff b8
RSP: 0018:ffffc900001dfa10 EFLAGS: 00000246
RAX: 1ffff1100712ca41 RBX: 0000000000000000 RCX: ffff888107430000
RDX: 0000000000000100 RSI: 00007f812bf8ec29 RDI: ffffffffa0003d80
RBP: 0000000000000000 R08: 0000000000000000 R09: ffffffff81ceb106
R10: ffffc900001dfaf8 R11: ffffffff81ac4d00 R12: ffffffffa0000890
R13: dffffc0000000000 R14: 00007f812bf8ec29 R15: ffff888038965428
 kernel_text_address+0xa5/0xe0
 __kernel_text_address+0xd/0x40
 unwind_get_return_address+0x4d/0x90
 arch_stack_walk+0xfc/0x150
 stack_trace_save+0x9c/0xe0
 kasan_save_track+0x3e/0x80
 __kasan_kmalloc+0x93/0xb0
 __kmalloc_noprof+0x27a/0x4f0
 ieee802_11_parse_elems_full+0x152/0x2ab0
 ieee80211_inform_bss+0x10c/0x10a0
 cfg80211_inform_single_bss_data+0xd05/0x1ac0
 cfg80211_inform_bss_data+0x1fb/0x3b30
 cfg80211_inform_bss_frame_data+0x3d7/0x730
 ieee80211_bss_info_update+0x746/0x9e0
 ieee80211_scan_rx+0x593/0xa20
 ieee80211_rx_list+0x201c/0x2a90
 ieee80211_rx_napi+0x1a8/0x3d0
 ieee80211_handle_queued_frames+0xe8/0x1f0
 tasklet_action_common+0x36c/0x580
 handle_softirqs+0x286/0x870
 __irq_exit_rcu+0xca/0x1f0
 irq_exit_rcu+0x9/0x30
 sysvec_apic_timer_interrupt+0xa6/0xc0
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20
RIP: 0010:preempt_schedule_irq+0xb0/0x150
Code: 24 20 f6 44 24 21 02 74 0c 90 0f 0b 48 f7 03 08 00 00 00 74 64 bf 01 00 00 00 e8 ab 1a 14 f6 e8 76 77 4b f6 fb bf 01 00 00 00 <e8> 5b ab ff ff 48 c7 44 24 40 00 00 00 00 9c 8f 44 24 40 8b 44 24
RSP: 0018:ffffc90006e07980 EFLAGS: 00000282
RAX: 7be04353f9160600 RBX: 0000000000000000 RCX: 7be04353f9160600
RDX: 0000000000000007 RSI: ffffffff8d9baa25 RDI: 0000000000000001
RBP: ffffc90006e07a20 R08: ffffffff8fa3b237 R09: 1ffffffff1f47646
R10: dffffc0000000000 R11: fffffbfff1f47647 R12: 0000000000000000
R13: 0000000000000000 R14: dffffc0000000000 R15: 1ffff92000dc0f30
 irqentry_exit+0x6f/0x90
 asm_sysvec_apic_timer_interrupt+0x1a/0x20
RIP: 0010:kmem_cache_alloc_node_noprof+0x34/0x3c0
Code: 55 41 54 53 48 83 ec 28 89 d5 41 89 f6 49 89 ff 65 48 8b 05 be 1c 88 10 48 89 44 24 20 48 8b 44 24 58 48 89 44 24 10 8b 47 1c <48> 89 04 24 8b 1d 32 f6 8a 0d 21 f3 89 df e8 29 9b fd ff 89 df e8
RSP: 0018:ffffc90006e07ae0 EFLAGS: 00000282
RAX: 00000000000005c0 RBX: 0000000000000001 RCX: 0000000000080000
RDX: 00000000ffffffff RSI: 0000000000000dc0 RDI: ffff88801a493500
RBP: 00000000ffffffff R08: 0000000000000000 R09: 0000000000000000
R10: dffffc0000000000 R11: ffffed1020e86006 R12: ffffc90006e07da0
R13: dffffc0000000000 R14: 0000000000000dc0 R15: ffff88801a493500
 perf_event_alloc+0x1c4/0x2be0
 __se_sys_perf_event_open+0x772/0x1d70
 do_syscall_64+0xfa/0x3b0
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f812bf8ec29
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f812cd4a038 EFLAGS: 00000246 ORIG_RAX: 000000000000012a
RAX: ffffffffffffffda RBX: 00007f812c1d5fa0 RCX: 00007f812bf8ec29
RDX: ffffffffffffffff RSI: 0000000000000000 RDI: 0000200000000180
RBP: 00007f812c011e41 R08: 000000000000000a R09: 0000000000000000
R10: ffffffffffffffff R11: 0000000000000246 R12: 0000000000000000
R13: 00007f812c1d6038 R14: 00007f812c1d5fa0 R15: 00007ffe7e30c6e8
 </TASK>
rcu: rcu_preempt kthread starved for 10482 jiffies! g35685 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=0
rcu: 	Unless rcu_preempt kthread gets sufficient CPU time, OOM is now expected behavior.
rcu: RCU grace-period kthread stack dump:
task:rcu_preempt     state:R  running task     stack:27160 pid:16    tgid:16    ppid:2      task_flags:0x208040 flags:0x00004000
Call Trace:
 <TASK>
 __schedule+0x1798/0x4cc0
 schedule+0x165/0x360
 schedule_timeout+0x12b/0x270
 rcu_gp_fqs_loop+0x301/0x1540
 rcu_gp_kthread+0x99/0x390
 kthread+0x711/0x8a0
 ret_from_fork+0x439/0x7d0
 ret_from_fork_asm+0x1a/0x30
 </TASK>
rcu: Stack dump where RCU GP kthread last ran:
CPU: 0 UID: 0 PID: 1087 Comm: kworker/u9:4 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
Workqueue: events_unbound toggle_allocation_gate
RIP: 0010:smp_call_function_many_cond+0xd33/0x12d0
Code: 45 8b 2c 24 44 89 ee 83 e6 01 31 ff e8 b6 63 0b 00 41 83 e5 01 49 bd 00 00 00 00 00 fc ff df 75 07 e8 61 5f 0b 00 eb 38 f3 90 <42> 0f b6 04 2b 84 c0 75 11 41 f7 04 24 01 00 00 00 74 1e e8 45 5f
RSP: 0018:ffffc90007027660 EFLAGS: 00000293
RAX: ffffffff81b4621b RBX: 1ffff11026cc7f61 RCX: ffff888023b7d640
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000
RBP: ffffc900070277e0 R08: ffffffff8fa3b237 R09: 1ffffffff1f47646
R10: dffffc0000000000 R11: fffffbfff1f47647 R12: ffff88813663fb08
R13: dffffc0000000000 R14: ffff88804b03b1c0 R15: 0000000000000001
FS:  0000000000000000(0000) GS:ffff8880b8612000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 000000000df36000 CR4: 00000000000006f0
DR0: 0000200000000300 DR1: 0000000000000000 DR2: 0000000000000082
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 <TASK>
 on_each_cpu_cond_mask+0x3f/0x80
 smp_text_poke_batch_finish+0x5f9/0x1130
 arch_jump_label_transform_apply+0x1c/0x30
 static_key_enable_cpuslocked+0x128/0x250
 static_key_enable+0x1a/0x20
 toggle_allocation_gate+0xad/0x240
 process_scheduled_works+0xae1/0x17b0
 worker_thread+0x8a0/0xda0
 kthread+0x711/0x8a0
 ret_from_fork+0x439/0x7d0
 ret_from_fork_asm+0x1a/0x30
 </TASK>
