rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 	0-....: (10454 ticks this GP) idle=545c/1/0x4000000000000000 softirq=258467/258470 fqs=4566
rcu: 	         hardirqs   softirqs   csw/system
rcu: 	 number:   883116          2            0
rcu: 	cputime:    33387      19101           56   ==> 52500(ms)
rcu: 	(t=10501 jiffies g=274885 q=2672 ncpus=2)
CPU: 0 UID: 0 PID: 22951 Comm: syz.2.14761 Not tainted 6.16.0-syzkaller-11113-gf3af62b6cee8-dirty #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+0x214/0x2390
Code: ef 08 8b 15 8e d0 4a 0c 8d 42 ff 44 39 f8 0f 86 65 18 00 00 44 89 f8 4c 8d 2c 85 24 83 df 90 4c 89 e8 48 c1 e8 03 0f b6 04 28 <84> c0 48 89 eb 0f 85 1c 1c 00 00 45 8b 6d 00 44 89 f8 ff c0 48 8d
RSP: 0018:ffffc90000006b98 EFLAGS: 00000a07
RAX: 0000000000000000 RBX: 0000000000000001 RCX: 381628bbbecd7b00
RDX: 00000000000a7b2c RSI: ffffffff8be2fce0 RDI: ffffffff8be2fca0
RBP: dffffc0000000000 R08: 0000000000000000 R09: ffffffff8172c025
R10: ffffc90000006cc8 R11: fffff52000000da5 R12: ffffffff8172e8c7
R13: ffffffff90e14ec4 R14: ffffc90000006cc8 R15: 00000000000072e8
FS:  00007f53e3b1a6c0(0000) GS:ffff8880b862a000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00005555586175c8 CR3: 000000011588c000 CR4: 00000000000006f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 00000000000b0602
Call Trace:
 <IRQ>
 __unwind_start+0x5b9/0x760
 arch_stack_walk+0xe4/0x150
 stack_trace_save+0x9c/0xe0
 kasan_save_track+0x3e/0x80
 kasan_save_free_info+0x46/0x50
 __kasan_slab_free+0x62/0x70
 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: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:ffffc90009117940 EFLAGS: 00000286
RAX: 381628bbbecd7b00 RBX: 0000000000000000 RCX: 381628bbbecd7b00
RDX: 0000000000000000 RSI: ffffffff8d9b163e RDI: 0000000000000001
RBP: ffffc900091179f0 R08: ffffffff8fa32437 R09: 1ffffffff1f46486
R10: dffffc0000000000 R11: fffffbfff1f46487 R12: 0000000000000000
R13: 0000000000000000 R14: dffffc0000000000 R15: 1ffff92001222f28
 irqentry_exit+0x6f/0x90
 asm_sysvec_apic_timer_interrupt+0x1a/0x20
RIP: 0010:kcov_task_exit+0xde/0x150
Code: ff f0 0f c1 03 83 f8 01 75 20 48 89 df e8 9a 11 00 00 48 8b 7b 50 e8 d1 c6 52 00 48 89 df 5b 41 5c 41 5e 41 5f e9 62 52 58 00 <7c> 0d 5b 41 5c 41 5e 41 5f e9 14 9c ba 09 cc 48 89 df be 03 00 00
RSP: 0018:ffffc90009117ab8 EFLAGS: 00000202
RAX: 0000000000000002 RBX: ffff88802f202900 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffffffff8d9b163e RDI: 00000000ffffffff
RBP: ffffc90009117c30 R08: ffffffff8fa32437 R09: 1ffffffff1f46486
R10: dffffc0000000000 R11: fffffbfff1f46487 R12: ffff88810bf65640
R13: 0000000000000009 R14: ffff88802f202908 R15: 0000000000000a06
 do_exit+0x105/0x2300
 do_group_exit+0x21c/0x2d0
 get_signal+0x1286/0x1340
 arch_do_signal_or_restart+0x9a/0x750
 exit_to_user_mode_loop+0x75/0x110
 do_syscall_64+0x2bd/0x3b0
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f53e2d8ebe9
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:00007f53e3b1a038 EFLAGS: 00000246 ORIG_RAX: 000000000000012a
RAX: 0000000000000008 RBX: 00007f53e2fb5fa0 RCX: 00007f53e2d8ebe9
RDX: ffefffffffffffff RSI: 0000000000000000 RDI: 0000200000000180
RBP: 00007f53e2e11e19 R08: 0000000000000000 R09: 0000000000000000
R10: ffffffffffffffff R11: 0000000000000246 R12: 0000000000000000
R13: 00007f53e2fb6038 R14: 00007f53e2fb5fa0 R15: 00007ffe639ffc38
 </TASK>
