rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 	0-....: (10500 ticks this GP) idle=4914/1/0x4000000000000000 softirq=12835/12835 fqs=5227
rcu: 	         hardirqs   softirqs   csw/system
rcu: 	 number:  1015804          2            0
rcu: 	cputime:    36728      15771           53   ==> 52500(ms)
rcu: 	(t=10502 jiffies g=7589 q=3390 ncpus=2)
CPU: 0 UID: 0 PID: 6038 Comm: syz.2.41 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:__sanitizer_cov_trace_const_cmp8+0x8/0x90
Code: 48 89 44 11 20 e9 88 f4 9c 09 cc 0f 1f 80 00 00 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 48 8b 04 24 <65> 48 8b 0c 25 08 b0 7e 92 65 8b 15 e8 f8 bc 10 81 e2 00 01 ff 00
RSP: 0018:ffffc90000006728 EFLAGS: 00000246
RAX: ffffffff81f2e8b2 RBX: 0000000000000303 RCX: ffff888101fd8000
RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc90000006800 R08: 0000000000000002 R09: 0000000000000000
R10: ffffc90000006a78 R11: ffffffff81ada120 R12: 1ffff92000000cfc
R13: dffffc0000000000 R14: ffff888101fd8000 R15: dffffc0000000000
FS:  00007f37746b46c0(0000) GS:ffff88818e835000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 00000001066b2000 CR4: 00000000000006f0
Call Trace:
 <IRQ>
 perf_swevent_get_recursion_context+0x42/0x100
 perf_trace_buf_alloc+0x43/0x280
 perf_trace_lock_acquire+0x196/0x410
 lock_acquire+0x2fb/0x340
 unwind_next_frame+0xc2/0x23d0
 arch_stack_walk+0x11c/0x150
 stack_trace_save+0x9c/0xe0
 kasan_save_track+0x3e/0x80
 __kasan_kmalloc+0x93/0xb0
 __kmalloc_noprof+0x41d/0x800
 ieee802_11_parse_elems_full+0x152/0x2ab0
 ieee80211_inform_bss+0x147/0x1130
 cfg80211_inform_single_bss_data+0xd14/0x1ad0
 cfg80211_inform_bss_data+0x203/0x3b40
 cfg80211_inform_bss_frame_data+0x3c7/0x710
 ieee80211_bss_info_update+0x749/0x9e0
 ieee80211_scan_rx+0x593/0xa20
 ieee80211_rx_list+0x2485/0x2f90
 ieee80211_rx_napi+0x1a8/0x3d0
 ieee80211_handle_queued_frames+0xe8/0x1e0
 tasklet_action_common+0x358/0x550
 handle_softirqs+0x27d/0x850
 __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 10 00 00 00 74 64 bf 01 00 00 00 e8 ab 16 34 f6 e8 46 94 6c f6 fb bf 01 00 00 00 <e8> 1b a8 ff ff 48 c7 44 24 40 00 00 00 00 9c 8f 44 24 40 8b 44 24
RSP: 0018:ffffc90007616fa0 EFLAGS: 00000286
RAX: 4b8b394ba8fbf800 RBX: 0000000000000000 RCX: 4b8b394ba8fbf800
RDX: 0000000000000006 RSI: ffffffff8d792409 RDI: 0000000000000001
RBP: ffffc90007617050 R08: ffffffff8f821f77 R09: 1ffffffff1f043ee
R10: dffffc0000000000 R11: fffffbfff1f043ef R12: 0000000000000000
R13: 0000000000000000 R14: dffffc0000000000 R15: 1ffff92000ec2df4
 irqentry_exit+0x5d8/0x660
 asm_sysvec_apic_timer_interrupt+0x1a/0x20
RIP: 0010:lock_release+0x5/0x3b0
Code: 00 e9 70 fe ff ff 41 be 2f 00 00 00 e9 0e ff ff ff 0f 1f 40 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 55 <41> 57 41 56 41 55 41 54 53 48 83 ec 30 49 89 f5 49 89 fe 65 48 8b
RSP: 0018:ffffc90007617168 EFLAGS: 00000202
RAX: 0000000000000001 RBX: ffffffff9019a101 RCX: 4b8b394ba8fbf800
RDX: ffffc90007617201 RSI: ffffffff81743f85 RDI: ffffffff8df41a20
RBP: dffffc0000000000 R08: ffffc90007617370 R09: 0000000000000000
R10: ffffc90007617298 R11: fffff52000ec2e55 R12: ffffc90007617380
R13: ffffc90007610000 R14: ffffc90007617248 R15: ffffffff81743f85
 unwind_next_frame+0x1ab1/0x23d0
 arch_stack_walk+0x11c/0x150
 stack_trace_save+0x9c/0xe0
 kasan_save_track+0x3e/0x80
 kasan_save_free_info+0x46/0x50
 __kasan_slab_free+0x5c/0x80
 kmem_cache_free_bulk+0x775/0xdb0
 mt_destroy_walk+0x144/0x7e0
 __mt_destroy+0x1c2/0x280
 exit_mmap+0x67b/0xb10
 __mmput+0x118/0x430
 copy_process+0x26a7/0x3950
 kernel_clone+0x21e/0x820
 __x64_sys_clone+0x18b/0x1e0
 do_syscall_64+0xfa/0xf80
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f377378f7c9
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:00007f37746b3fe8 EFLAGS: 00000206 ORIG_RAX: 0000000000000038
RAX: ffffffffffffffda RBX: 00007f37739e6090 RCX: 00007f377378f7c9
RDX: 0000000000000000 RSI: 00000000fffffeb0 RDI: 0000000002000400
RBP: 00007f37737f297f R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000206 R12: 0000000000000000
R13: 00007f37739e6128 R14: 00007f37739e6090 R15: 00007ffce0847e68
 </TASK>
