rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 	1-....: (9666 ticks this GP) idle=fbbc/1/0x4000000000000000 softirq=29034/29034 fqs=4277
rcu: 	         hardirqs   softirqs   csw/system
rcu: 	 number:   789159          0            0
rcu: 	cputime:    37031      15377           61   ==> 52420(ms)
rcu: 	(t=10502 jiffies g=21177 q=2230 ncpus=2)
CPU: 1 UID: 0 PID: 8500 Comm: syz.6.577 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:unwind_next_frame+0xb6a/0x2390
Code: 83 3e 00 0f 95 c0 49 39 df 0f 96 c1 20 c1 49 39 dc 0f 97 c0 20 c8 3c 01 75 18 48 8d 43 08 4c 39 f8 0f 97 c1 4c 39 e0 0f 96 c0 <84> c1 0f 85 c2 00 00 00 49 8d 7e 28 48 89 f8 48 c1 e8 03 48 b9 00
RSP: 0018:ffffc900001dfbf8 EFLAGS: 00000283
RAX: ffffc900001e0001 RBX: ffffc900001e0050 RCX: 1ffff9200003bf01
RDX: ffffffff8ff79418 RSI: 0000000000000002 RDI: ffffffff8b9ec280
RBP: 1ffff9200003bf9a R08: 000000000000000a R09: ffffffff81725d05
R10: ffffc900001dfd18 R11: ffffffff81aaefd0 R12: ffffc900001e1000
R13: 1ffff9200003bf9b R14: ffffc900001dfcc8 R15: ffffc900001d9000
FS:  00007f4ce85f66c0(0000) GS:ffff8881a4173000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000100000000 CR3: 00000000232e0000 CR4: 00000000000006f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 00000000000f0602
Call Trace:
 <IRQ>
 arch_stack_walk+0x11c/0x150
 stack_trace_save+0x9c/0xe0
 kasan_save_track+0x3e/0x80
 kasan_save_free_info+0x46/0x50
 __kasan_slab_free+0x5b/0x80
 kfree+0x18e/0x440
 ieee80211_inform_bss+0xbd9/0x10a0
 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:__schedule+0x15f/0x4cc0
Code: 8b 23 49 8d 9c 24 c0 7a 4c 92 49 89 df 49 c1 ef 03 48 b8 00 00 00 00 00 fc ff df 41 80 3c 07 00 74 08 48 89 df e8 51 de ea f6 <48> 89 5c 24 58 4c 8b 33 49 8d 5e 20 48 89 d8 48 c1 e8 03 48 b9 00
RSP: 0018:ffffc90004fe7940 EFLAGS: 00000246
RAX: dffffc0000000000 RBX: ffff88813663aac0 RCX: 650d48d152d0d700
RDX: 0000000000000000 RSI: ffffffff8b9ec2c0 RDI: ffffffff8b9ec280
RBP: ffffc90004fe7b50 R08: ffffffff8f5cd537 R09: 1ffffffff1eb9aa6
R10: dffffc0000000000 R11: fffffbfff1eb9aa7 R12: ffff8881a4173000
R13: 0000000000000001 R14: dffffc0000000000 R15: 1ffff11026cc7558
 preempt_schedule_common+0x83/0xd0
 preempt_schedule+0xae/0xc0
 preempt_schedule_thunk+0x16/0x30
 _raw_spin_unlock_irqrestore+0xfd/0x110
 __se_sys_perf_event_open+0x1942/0x1d70
 do_syscall_64+0xfa/0x3b0
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f4cea38ec29
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:00007f4ce85f6038 EFLAGS: 00000246 ORIG_RAX: 000000000000012a
RAX: ffffffffffffffda RBX: 00007f4cea5d5fa0 RCX: 00007f4cea38ec29
RDX: ffffffffffffffff RSI: 0000000000000000 RDI: 0000200000000100
RBP: 00007f4cea411e41 R08: 0000000000000000 R09: 0000000000000000
R10: ffffffffffffffff R11: 0000000000000246 R12: 0000000000000000
R13: 00007f4cea5d6038 R14: 00007f4cea5d5fa0 R15: 00007ffc7531a538
 </TASK>
