rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 	1-....: (10470 ticks this GP) idle=88ec/1/0x4000000000000000 softirq=63156/63793 fqs=5214
rcu: 	         hardirqs   softirqs   csw/system
rcu: 	 number:  1275984       1930            0
rcu: 	cputime:    32030      20441           43   ==> 52480(ms)
rcu: 	(t=10500 jiffies g=40393 q=4432 ncpus=2)
CPU: 1 UID: 0 PID: 9398 Comm: syz.2.735 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:lock_acquire+0x175/0x360
Code: 00 00 00 00 9c 8f 44 24 30 f7 44 24 30 00 02 00 00 0f 85 cd 00 00 00 f7 44 24 08 00 02 00 00 74 01 fb 65 48 8b 05 4b e3 02 11 <48> 3b 44 24 58 0f 85 f2 00 00 00 48 83 c4 60 5b 41 5c 41 5d 41 5e
RSP: 0018:ffffc900001df938 EFLAGS: 00000206
RAX: c0ecae267e189800 RBX: 0000000000000000 RCX: c0ecae267e189800
RDX: 0000000000000000 RSI: ffffffff8dba5cac RDI: ffffffff8be33300
RBP: ffffffff8172c195 R08: 0000000000000000 R09: ffffffff8172c195
R10: ffffc900001dfaf8 R11: ffffffff81ac3930 R12: 0000000000000002
R13: ffffffff8e139ea0 R14: 0000000000000000 R15: 0000000000000246
FS:  00007fb72d95a6c0(0000) GS:ffff8881a3c1c000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000561c75b43568 CR3: 00000000324ac000 CR4: 00000000000006f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 <IRQ>
 unwind_next_frame+0xc2/0x2390
 arch_stack_walk+0x11c/0x150
 stack_trace_save+0x9c/0xe0
 kasan_save_track+0x3e/0x80
 __kasan_kmalloc+0x93/0xb0
 __kmalloc_noprof+0x27a/0x4f0
 ieee802_11_parse_elems_full+0x152/0x2ab0
 ieee80211_inform_bss+0x10c/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:free_percpu+0x14b/0xf50
Code: 74 4e 49 8d bf 80 00 00 00 48 89 f8 48 c1 e8 03 42 80 3c 20 00 74 05 e8 d3 41 1f 00 4d 8b b7 80 00 00 00 49 8d 9f a4 00 00 00 <48> 89 d8 48 c1 e8 03 42 0f b6 04 20 84 c0 0f 85 13 0c 00 00 48 63
RSP: 0018:ffffc9000429f6f0 EFLAGS: 00000246
RAX: 1ffff11027ffc4d8 RBX: ffff88813ffe26e4 RCX: ffff88801ff28000
RDX: 0000000000000000 RSI: 00000000000003fd RDI: ffff88813ffe26c0
RBP: ffffe8ff14645da8 R08: ffffffff8dfdd3cf R09: 1ffffffff1bfba79
R10: dffffc0000000000 R11: fffffbfff1bfba7a R12: dffffc0000000000
R13: dffffc0000000000 R14: ffff88804b03c000 R15: ffff88813ffe2640
 __mmdrop+0x2f4/0x580
 finish_task_switch+0x3ee/0x950
 __schedule+0x17a0/0x4cc0
 preempt_schedule_irq+0xb5/0x150
 irqentry_exit+0x6f/0x90
 asm_sysvec_apic_timer_interrupt+0x1a/0x20
RIP: 0010:preempt_schedule_common+0x11/0xd0
Code: 2e 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 41 57 41 56 53 49 bf 00 00 00 00 00 fc ff df eb 0d <48> f7 03 08 00 00 00 0f 84 9b 00 00 00 65 ff 05 0b e0 25 07 65 8b
RSP: 0018:ffffc9000429fb80 EFLAGS: 00000246
RAX: 1ffff11003fe5000 RBX: ffff88801ff28000 RCX: c0ecae267e189800
RDX: 0000000000000000 RSI: ffffffff8be332e0 RDI: ffffffff8be332a0
RBP: ffffc9000429fc18 R08: ffffffff8fa38037 R09: 1ffffffff1f47006
R10: dffffc0000000000 R11: fffffbfff1f47007 R12: ffff888125f2a000
R13: 00000000000010bc R14: ffff88801ff294e0 R15: dffffc0000000000
 preempt_schedule+0xae/0xc0
 preempt_schedule_thunk+0x16/0x30
 idr_preload_end+0x126/0x200
 bpf_map_alloc_id+0x8c/0xe0
 map_create+0x1056/0x14d0
 __sys_bpf+0x60f/0x870
 __x64_sys_bpf+0x7c/0x90
 do_syscall_64+0xfa/0x3b0
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fb72cb8ebe9
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:00007fb72d95a038 EFLAGS: 00000246 ORIG_RAX: 0000000000000141
RAX: ffffffffffffffda RBX: 00007fb72cdb5fa0 RCX: 00007fb72cb8ebe9
RDX: 0000000000000048 RSI: 0000200000001740 RDI: 0000000000000000
RBP: 00007fb72cc11e19 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fb72cdb6038 R14: 00007fb72cdb5fa0 R15: 00007ffdfdf836b8
 </TASK>
