rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 	1-....: (10499 ticks this GP) idle=274c/1/0x4000000000000000 softirq=48466/48593 fqs=5118
rcu: 	         hardirqs   softirqs   csw/system
rcu: 	 number:  1279566        558            0
rcu: 	cputime:    35303      17173           55   ==> 52480(ms)
rcu: 	(t=10500 jiffies g=37545 q=9125 ncpus=2)
CPU: 1 UID: 0 PID: 11496 Comm: syz.8.1323 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:strlen+0x43/0x70
Code: fc ff df 48 89 fb 49 89 c7 48 89 d8 48 c1 e8 03 42 0f b6 04 30 84 c0 75 11 48 ff c3 49 8d 47 01 42 80 7c 3f 01 00 75 de eb 19 <89> d9 80 e1 07 38 c1 7c e6 49 89 fc 48 89 df e8 59 04 ae f6 4c 89
RSP: 0018:ffffc900001df7f8 EFLAGS: 00000206
RAX: 0000000000000006 RBX: ffffffff8b8bd2ab RCX: 000000008b8bd202
RDX: 0000000000000000 RSI: ffffffff8e139ea0 RDI: ffffffff8b8bd2a0
RBP: ffffc900001df918 R08: 0000000000000002 R09: 0000000000000000
R10: ffffc900001dfaf8 R11: ffffffff81ac3930 R12: 1ffff9200003bf0c
R13: ffffffff8e139ea0 R14: dffffc0000000000 R15: 000000000000000a
FS:  00007f5faac2a6c0(0000) GS:ffff8881a3c1c000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffd57e26f6c CR3: 0000000115cea000 CR4: 00000000000006f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 <IRQ>
 perf_trace_lock_acquire+0xcb/0x410
 lock_acquire+0x311/0x360
 unwind_next_frame+0xc2/0x2390
 arch_stack_walk+0x11c/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:rcu_read_unlock_special+0x87/0x5e0
Code: f1 f1 f1 00 f2 f2 f2 4a 89 04 2b 66 42 c7 44 2b 09 f3 f3 42 c6 44 2b 0b f3 65 44 8b 35 b2 27 f9 10 41 f7 c6 00 00 f0 00 74 49 <48> c7 44 24 40 0e 36 e0 45 4a c7 04 2b 00 00 00 00 66 42 c7 44 2b
RSP: 0018:ffffc90003526860 EFLAGS: 00000206
RAX: 32478eedf2971c00 RBX: 1ffff920006a4d14 RCX: 32478eedf2971c00
RDX: 0000000000000006 RSI: ffffffff8d9b6a0a RDI: ffffffff8be33300
RBP: ffffc90003526958 R08: ffffffff8fa38037 R09: 1ffffffff1f47006
R10: dffffc0000000000 R11: fffffbfff1f47007 R12: ffffffff8e13f200
R13: dffffc0000000000 R14: 0000000000000246 R15: 0000000000000002
 __rcu_read_unlock+0x84/0xe0
 unwind_next_frame+0x19ae/0x2390
 arch_stack_walk+0x11c/0x150
 stack_trace_save+0x9c/0xe0
 kasan_save_track+0x3e/0x80
 __kasan_slab_alloc+0x6c/0x80
 kmem_cache_alloc_noprof+0x1c1/0x3c0
 fill_pool+0x100/0x570
 debug_object_activate+0x383/0x420
 call_rcu+0xaa/0x9c0
 __schedule+0x17a0/0x4cc0
 preempt_schedule_common+0x83/0xd0
 preempt_schedule+0xae/0xc0
 preempt_schedule_thunk+0x16/0x30
 _raw_spin_unlock_irqrestore+0xfd/0x110
 rcu_preempt_deferred_qs_irqrestore+0x8bd/0xce0
 rcu_read_unlock_special+0x475/0x5e0
 __rcu_read_unlock+0x84/0xe0
 unwind_next_frame+0x19ae/0x2390
 arch_stack_walk+0x11c/0x150
 stack_trace_save+0x9c/0xe0
 save_stack+0xf5/0x1f0
 __reset_page_owner+0x71/0x1f0
 __free_frozen_pages+0xbc4/0xd30
 __slab_free+0x303/0x3c0
 qlist_free_all+0x97/0x140
 kasan_quarantine_reduce+0x148/0x160
 __kasan_slab_alloc+0x22/0x80
 kmem_cache_alloc_noprof+0x1c1/0x3c0
 security_file_alloc+0x34/0x330
 init_file+0x93/0x2f0
 alloc_empty_file+0x6e/0x1d0
 alloc_file_pseudo+0x13d/0x210
 sock_alloc_file+0xb8/0x2e0
 __sys_socket+0x13d/0x1b0
 __x64_sys_socket+0x7a/0x90
 do_syscall_64+0xfa/0x3b0
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f5fa9d8ebe9
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:00007f5faac2a038 EFLAGS: 00000246 ORIG_RAX: 0000000000000029
RAX: ffffffffffffffda RBX: 00007f5fa9fb6180 RCX: 00007f5fa9d8ebe9
RDX: 0000000000000088 RSI: 0000000000000002 RDI: 000000000000000a
RBP: 00007f5fa9e11e19 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f5fa9fb6218 R14: 00007f5fa9fb6180 R15: 00007ffe0935e298
 </TASK>
