rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 	0-....: (10295 ticks this GP) idle=1b14/1/0x4000000000000000 softirq=15059/15059 fqs=4301
rcu: 	         hardirqs   softirqs   csw/system
rcu: 	 number:   838453          0            0
rcu: 	cputime:    37204      15275           56   ==> 52480(ms)
rcu: 	(t=10500 jiffies g=7965 q=2844 ncpus=2)
CPU: 0 UID: 0 PID: 6146 Comm: syz.2.68 Not tainted 6.16.0-syzkaller-11113-gf3af62b6cee8 #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+0x131f/0x2390
Code: 00 49 01 ef 4c 89 f8 48 c1 e8 03 48 b9 00 00 00 00 00 fc ff df 0f b6 04 08 84 c0 75 27 49 63 07 4c 01 f8 49 8d 4f 04 4c 39 e0 <48> 0f 46 e9 49 8d 47 fc 48 0f 47 d8 4d 0f 46 ef 48 39 dd 76 a2 e9
RSP: 0018:ffffc90000006b98 EFLAGS: 00000206
RAX: ffffffff8acab486 RBX: ffffffff901fd3d8 RCX: ffffffff901fd3c0
RDX: ffffffff901fd3a0 RSI: ffffffff90d0281c RDI: ffffffff8be2fca0
RBP: ffffffff901fd3a0 R08: 000000000000000f R09: ffffffff8172c025
R10: ffffc90000006cb8 R11: ffffffff81ac34b0 R12: ffffffff8acab426
R13: ffffffff901fd3a0 R14: ffffc90000006c68 R15: ffffffff901fd3bc
FS:  00007f615b3496c0(0000) GS:ffff8880b862a000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f615b3289c8 CR3: 0000000028fe0000 CR4: 00000000000006f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000050602
Call Trace:
 <IRQ>
 arch_stack_walk+0x11c/0x150
 stack_trace_save+0x9c/0xe0
 kasan_save_stack+0x3e/0x60
 kasan_record_aux_stack+0xbd/0xd0
 kvfree_call_rcu+0xbb/0x410
 cfg80211_update_known_bss+0x634/0x1330
 __cfg80211_bss_update+0x147/0x2120
 cfg80211_inform_single_bss_data+0xba9/0x1ac0
 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 4b 6e 17 f6 e8 46 b1 4e 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:ffffc90003b3fae0 EFLAGS: 00000282
RAX: fd35171341435a00 RBX: 0000000000000000 RCX: fd35171341435a00
RDX: 0000000000000007 RSI: ffffffff8d9b1618 RDI: 0000000000000001
RBP: ffffc90003b3fb80 R08: ffffffff8fa32437 R09: 1ffffffff1f46486
R10: dffffc0000000000 R11: fffffbfff1f46487 R12: 0000000000000000
R13: 0000000000000000 R14: dffffc0000000000 R15: 1ffff92000767f5c
 irqentry_exit+0x6f/0x90
 asm_sysvec_apic_timer_interrupt+0x1a/0x20
RIP: 0010:__up_read+0xab/0x680
Code: 05 00 00 83 3d 09 6e 06 0e 00 0f 85 e4 00 00 00 4c 8d 63 68 4d 89 e6 49 c1 ee 03 48 b8 00 00 00 00 00 fc ff df 41 80 3c 06 00 <74> 08 4c 89 e7 e8 bb 0a 86 00 48 39 5b 68 74 12 80 3d e8 1f f0 0d
RSP: 0018:ffffc90003b3fc40 EFLAGS: 00000246
RAX: dffffc0000000000 RBX: ffff888108a26770 RCX: dffffc0000000000
RDX: 1ffff92000767f8c RSI: ffffffff8dba01e6 RDI: ffff888108a26770
RBP: ffffc90003b3fcf0 R08: ffffc90003b3fc87 R09: 1ffff92000767f90
R10: dffffc0000000000 R11: fffff52000767f91 R12: ffff888108a267d8
R13: ffff888031563200 R14: 1ffff11021144cfb R15: 1ffff92000767fb0
 __se_sys_perf_event_open+0x199d/0x1d70
 do_syscall_64+0xfa/0x3b0
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f615a58eb69
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:00007f615b349038 EFLAGS: 00000246 ORIG_RAX: 000000000000012a
RAX: ffffffffffffffda RBX: 00007f615a7b5fa0 RCX: 00007f615a58eb69
RDX: ffffffffffffffff RSI: 0000000000000000 RDI: 00002000000002c0
RBP: 00007f615a611df1 R08: 0000000000000000 R09: 0000000000000000
R10: ffffffffffffffff R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f615a7b5fa0 R15: 00007ffcce141048
 </TASK>
