rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 	1-....: (10403 ticks this GP) idle=811c/1/0x4000000000000000 softirq=13679/13680 fqs=4838
rcu: 	         hardirqs   softirqs   csw/system
rcu: 	 number:  1239346          0            0
rcu: 	cputime:    35838      16641           36   ==> 52480(ms)
rcu: 	(t=10500 jiffies g=9505 q=4317 ncpus=2)
CPU: 1 UID: 0 PID: 6135 Comm: syz.3.45 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:__kmalloc_noprof+0x364/0x760
Code: 66 90 f7 c3 00 00 40 00 75 63 41 f6 44 24 09 80 75 5b 4c 89 e7 4c 89 ee 4c 89 f2 89 d9 e8 44 a7 0b 00 49 89 c5 41 8b 4c 24 18 <48> 8b 7c 24 18 48 89 c6 4c 89 f2 41 89 d8 41 b9 ff ff ff ff e8 f3
RSP: 0018:ffffc90000a07f10 EFLAGS: 00000286
RAX: ffff8881731de000 RBX: 0000000000000920 RCX: 0000000000000800
RDX: 000000009696d723 RSI: 0000000000000001 RDI: 000000000bd0a986
RBP: ffff88823c63f400 R08: 000000006821c6b3 R09: 000000007ec72d79
R10: 0000000000000013 R11: ffffffff81b0c390 R12: ffff888100041dc0
R13: ffff8881731de000 R14: 00000000000003c8 R15: 0000000000000400
FS:  0000555574935500(0000) GS:ffff8882a945a000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000001ab3 CR3: 0000000176a88000 CR4: 00000000000006f0
Call Trace:
 <IRQ>
 ieee802_11_parse_elems_full+0x159/0x2ab0
 ieee80211_inform_bss+0x161/0x1160
 cfg80211_inform_single_bss_data+0xd08/0x1b70
 cfg80211_inform_bss_data+0x266/0x3c40
 cfg80211_inform_bss_frame_data+0x3c7/0x760
 ieee80211_bss_info_update+0x794/0xa40
 ieee80211_scan_rx+0x552/0xa40
 ieee80211_rx_list+0x29e5/0x3710
 ieee80211_rx_napi+0x1b1/0x3e0
 ieee80211_handle_queued_frames+0xe8/0x1e0
 tasklet_action_common+0x2da/0x4b0
 handle_softirqs+0x22a/0x870
 __irq_exit_rcu+0x5f/0x150
 irq_exit_rcu+0x9/0x30
 sysvec_apic_timer_interrupt+0xa6/0xc0
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20
RIP: 0010:_raw_spin_unlock_irqrestore+0x47/0x80
Code: f7 e8 1d c1 f0 f5 f7 c3 00 02 00 00 74 05 e8 d0 1a 1c f6 9c 58 a9 00 02 00 00 75 27 f7 c3 00 02 00 00 74 01 fb bf 01 00 00 00 <e8> e4 7d e2 f5 65 8b 05 0d f0 6a 07 85 c0 74 18 5b 41 5e c3 cc cc
RSP: 0018:ffffc900042d78d8 EFLAGS: 00000206
RAX: 0000000000000002 RBX: 0000000000000246 RCX: 0000000080000001
RDX: 0000000000000007 RSI: ffffffff8def8e53 RDI: 0000000000000001
RBP: ffffc900042d7980 R08: ffffffff9011b4b7 R09: 1ffffffff2023696
R10: dffffc0000000000 R11: fffffbfff2023697 R12: ffff8881000409c0
R13: ffff888100042140 R14: ffff8881000409c0 R15: 0000000000000000
 __slab_free+0x211/0x2b0
 qlist_free_all+0x97/0x100
 kasan_quarantine_reduce+0x148/0x160
 __kasan_slab_alloc+0x22/0x80
 kmem_cache_alloc_noprof+0x2bc/0x650
 taskstats_exit+0x14a/0xa30
 do_exit+0x682/0x23c0
 do_group_exit+0x21b/0x2d0
 get_signal+0x1284/0x1330
 arch_do_signal_or_restart+0xbc/0x830
 exit_to_user_mode_loop+0x86/0x480
 do_syscall_64+0x32d/0xf80
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f1e6dd9c799
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 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 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fff88ef30d8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: 0000000000000001 RBX: 0000000000000000 RCX: 00007f1e6dd9c799
RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00007f1e6e015fa8
RBP: 0000000000001ab3 R08: 0000000000000000 R09: 0000000000000000
R10: 00007f1e6e015fa0 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f1e6e015fac R14: 00007f1e6e015fa8 R15: 00007f1e6e015fa0
 </TASK>
clocksource: Long readout interval, skipping watchdog check: cs_nsec: 102597249854 wd_nsec: 102597257207
