rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 	0-....: (10425 ticks this GP) idle=7f64/1/0x4000000000000000 softirq=35712/35717 fqs=3743
rcu: 	         hardirqs   softirqs   csw/system
rcu: 	 number:   925476          0            0
rcu: 	cputime:    33327      19151          137   ==> 52480(ms)
rcu: 	(t=10500 jiffies g=26201 q=49708 ncpus=2)
CPU: 0 UID: 0 PID: 10327 Comm: syz.3.1266 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:_raw_spin_unlock_irqrestore+0xa8/0x110
Code: 74 05 e8 2b 0c 4a f6 48 c7 44 24 20 00 00 00 00 9c 8f 44 24 20 f6 44 24 21 02 75 4f f7 c3 00 02 00 00 74 01 fb bf 01 00 00 00 <e8> e3 b0 12 f6 65 8b 05 6c 81 23 07 85 c0 74 40 48 c7 04 24 0e 36
RSP: 0018:ffffc90000006f20 EFLAGS: 00000206
RAX: 73f9235a61d76700 RBX: 0000000000000a06 RCX: 73f9235a61d76700
RDX: 0000000000000002 RSI: ffffffff8d9baa25 RDI: 0000000000000001
RBP: ffffc90000006fa0 R08: ffffffff8fa3b237 R09: 1ffffffff1f47646
R10: dffffc0000000000 R11: fffffbfff1f47647 R12: dffffc0000000000
R13: ffff888039d73400 R14: ffffffff99cb8050 R15: 1ffff92000000de4
FS:  00007f41cbac36c0(0000) GS:ffff8880b8612000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 000000002868e000 CR4: 00000000000006f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000082
DR3: 0000200000000300 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 <IRQ>
 debug_check_no_obj_freed+0x451/0x470
 kfree+0x112/0x440
 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_irq_work+0xa3/0xc0
 </IRQ>
 <TASK>
 asm_sysvec_irq_work+0x1a/0x20
RIP: 0010:generic_exec_single+0x481/0x500
Code: 75 11 e8 d2 6f 0b 00 48 85 db 75 16 e8 c8 6f 0b 00 eb 15 e8 c1 6f 0b 00 e8 7c 76 c6 09 48 85 db 74 ea e8 b2 6f 0b 00 fb 31 c0 <48> c7 44 24 20 0e 36 e0 45 4b c7 04 2c 00 00 00 00 66 43 c7 44 2c
RSP: 0018:ffffc9000489f9c0 EFLAGS: 00000246
RAX: 0000000000000000 RBX: 0000000000000200 RCX: 0000000000080000
RDX: ffffc900042e1000 RSI: 0000000000002b39 RDI: 0000000000002b3a
RBP: ffffc9000489fa90 R08: ffffffff8fa3b237 R09: 1ffffffff1f47646
R10: dffffc0000000000 R11: fffffbfff1f47647 R12: 1ffff92000913f3c
R13: dffffc0000000000 R14: 0000000000000000 R15: 1ffff92000913f5d
 smp_call_function_single+0x351/0x590
 perf_install_in_context+0x593/0x8f0
 __se_sys_perf_event_open+0x193a/0x1d70
 do_syscall_64+0xfa/0x3b0
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f41cab8ec29
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:00007f41cbac3038 EFLAGS: 00000246 ORIG_RAX: 000000000000012a
RAX: ffffffffffffffda RBX: 00007f41cadd5fa0 RCX: 00007f41cab8ec29
RDX: ffffffffffffffff RSI: 0000000000000000 RDI: 00002000000003c0
RBP: 00007f41cac11e41 R08: 0000000000000000 R09: 0000000000000000
R10: ffffffffffffffff R11: 0000000000000246 R12: 0000000000000000
R13: 00007f41cadd6038 R14: 00007f41cadd5fa0 R15: 00007ffddc0fa998
 </TASK>
