rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 	0-....: (10420 ticks this GP) idle=d124/1/0x4000000000000000 softirq=26545/26550 fqs=3981
rcu: 	         hardirqs   softirqs   csw/system
rcu: 	 number:   756115          0            0
rcu: 	cputime:    37517      14942           60   ==> 52460(ms)
rcu: 	(t=10500 jiffies g=18893 q=7580 ncpus=2)
CPU: 0 UID: 0 PID: 8305 Comm: syz.3.610 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:__read_once_word_nocheck+0x0/0x10
Code: e8 25 68 b0 00 48 ba 00 00 00 00 00 fc ff df e9 88 fc ff ff 66 0f 1f 44 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 <48> 8b 07 c3 cc cc cc cc cc cc cc cc cc cc cc cc 90 90 90 90 90 90
RSP: 0018:ffffc90000006bf0 EFLAGS: 00000202
RAX: ffffc90000007201 RBX: ffffc900000071f8 RCX: 1ffff92000000d01
RDX: ffffffff90d2d502 RSI: 0000000000000002 RDI: ffffc900000071f8
RBP: 1ffff92000000d9a R08: 0000000000000003 R09: ffffffff8172d195
R10: ffffc90000006d18 R11: ffffffff81ac4d00 R12: ffffc90000008000
R13: 1ffff92000000d9b R14: ffffc90000006cc8 R15: ffffc90000000000
FS:  00007f22c3d616c0(0000) GS:ffff8880b8613000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000100000000 CR3: 000000003b324000 CR4: 00000000000006f0
DR0: 0000000000000000 DR1: 0000200000000300 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 00000000000f0602
Call Trace:
 <IRQ>
 unwind_next_frame+0xc3c/0x2390
 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+0x1b3/0x4cc0
Code: f6 48 8b 1b 48 89 d8 48 c1 e8 03 48 b9 00 00 00 00 00 fc ff df 80 3c 08 00 74 08 48 89 df e8 f4 17 a8 f6 48 81 3b 9d 6e ac 57 <0f> 85 b7 18 00 00 45 85 ed 7f 54 49 8d 5e 18 48 89 d8 48 c1 e8 03
RSP: 0018:ffffc90002c3f860 EFLAGS: 00000246
RAX: 1ffff92000587000 RBX: ffffc90002c38000 RCX: dffffc0000000000
RDX: 0000000000000000 RSI: ffffffff8be33e60 RDI: ffffffff8be33e20
RBP: ffffc90002c3fa70 R08: ffffffff8fa3ab37 R09: 1ffffffff1f47566
R10: dffffc0000000000 R11: fffffbfff1f47567 R12: ffff8880b8613000
R13: 0000000000000001 R14: ffff88801ed23980 R15: 1ffff11009607551
 preempt_schedule_irq+0xb5/0x150
 irqentry_exit+0x6f/0x90
 asm_sysvec_apic_timer_interrupt+0x1a/0x20
RIP: 0010:__mutex_unlock_slowpath+0x133/0x740
Code: 03 48 c7 c3 64 dc a3 8f 48 c1 eb 03 48 89 84 24 a0 00 00 00 43 0f b6 04 2e 84 c0 0f 85 17 01 00 00 83 3d 5f 49 30 0e 00 75 3e <48> 8b 84 24 a0 00 00 00 48 83 e0 f8 65 48 8b 0c 25 08 d0 a0 92 48
RSP: 0018:ffffc90002c3fbe0 EFLAGS: 00000246
RAX: 0000000000000004 RBX: 1ffffffff1f47b8c RCX: ffffffff99ac2303
RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffff888029215840
RBP: ffffc90002c3fcf0 R08: ffff888029215847 R09: 1ffff11005242b08
R10: dffffc0000000000 R11: ffffed1005242b09 R12: ffffc90002c3fc80
R13: dffffc0000000000 R14: 1ffffffff3358464 R15: ffff888029215840
 __se_sys_perf_event_open+0x194c/0x1d70
 do_syscall_64+0xfa/0x3b0
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f22c2f8eba9
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:00007f22c3d61038 EFLAGS: 00000246 ORIG_RAX: 000000000000012a
RAX: ffffffffffffffda RBX: 00007f22c31d5fa0 RCX: 00007f22c2f8eba9
RDX: ffffffffffffffff RSI: 0000000000000000 RDI: 0000200000000100
RBP: 00007f22c3011e19 R08: 0000000000000000 R09: 0000000000000000
R10: ffffffffffffffff R11: 0000000000000246 R12: 0000000000000000
R13: 00007f22c31d6038 R14: 00007f22c31d5fa0 R15: 00007ffe49a6c7f8
 </TASK>
clocksource: Long readout interval, skipping watchdog check: cs_nsec: 96202482142 wd_nsec: 96202484390
