rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 	0-....: (10498 ticks this GP) idle=b18c/1/0x4000000000000000 softirq=15244/15253 fqs=4705
rcu: 	         hardirqs   softirqs   csw/system
rcu: 	 number:   966149          7            0
rcu: 	cputime:    33580      18908           50   ==> 52490(ms)
rcu: 	(t=10500 jiffies g=8029 q=2944 ncpus=2)
CPU: 0 UID: 0 PID: 6105 Comm: syz.1.52 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:unwind_next_frame+0x1813/0x2390
Code: 8b 84 24 84 00 00 00 41 39 06 4c 8b 7c 24 48 48 8b 7c 24 70 0f 85 54 01 00 00 48 8b 44 24 58 80 3c 28 00 74 05 e8 ed 55 b0 00 <4d> 8b 66 38 49 8d 7e 08 48 89 f8 48 c1 e8 03 80 3c 28 00 74 05 e8
RSP: 0018:ffffc90000006958 EFLAGS: 00000246
RAX: 1ffff92000000d4c RBX: ffffffff90dbd401 RCX: 0000000000000001
RDX: ffffc90000006a68 RSI: dffffc0000000000 RDI: ffffc90000006a60
RBP: dffffc0000000000 R08: ffffc9000628fbf8 R09: 0000000000000000
R10: ffffc90000006a78 R11: fffff52000000d51 R12: ffffc9000628fbf8
R13: ffffc90000006a78 R14: ffffc90000006a28 R15: ffffffff8172d195
FS:  00007fd9650816c0(0000) GS:ffff8880b8613000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000004 CR3: 00000001074ae000 CR4: 00000000000006f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000050602
Call Trace:
 <IRQ>
 arch_stack_walk+0x11c/0x150
 stack_trace_save+0x9c/0xe0
 __kfence_alloc+0x2b2/0x3b0
 __kmalloc_noprof+0x440/0x4f0
 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:__schedule+0x1b3/0x4cc0
Code: f6 48 8b 1b 48 89 d8 48 c1 e8 03 48 b9 00 00 00 00 00 fc ff df 80 3c 08 00 74 08 48 89 df e8 94 0e a8 f6 48 81 3b 9d 6e ac 57 <0f> 85 b7 18 00 00 45 85 ed 7f 54 49 8d 5e 18 48 89 d8 48 c1 e8 03
RSP: 0018:ffffc9000628f940 EFLAGS: 00000246
RAX: 1ffff92000c51000 RBX: ffffc90006288000 RCX: dffffc0000000000
RDX: 0000000000000000 RSI: ffffffff8be33de0 RDI: ffffffff8be33da0
RBP: ffffc9000628fb50 R08: ffffffff8fa3a837 R09: 1ffffffff1f47506
R10: dffffc0000000000 R11: fffffbfff1f47507 R12: ffff8880b8613000
R13: 0000000000000001 R14: ffff888020463980 R15: 1ffff11009607551
 preempt_schedule_common+0x83/0xd0
 preempt_schedule+0xae/0xc0
 preempt_schedule_thunk+0x16/0x30
 _raw_spin_unlock_irqrestore+0xfd/0x110
 __se_sys_perf_event_open+0x1942/0x1d70
 do_syscall_64+0xfa/0x3b0
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fd96418eba9
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:00007fd965081038 EFLAGS: 00000246 ORIG_RAX: 000000000000012a
RAX: ffffffffffffffda RBX: 00007fd9643d5fa0 RCX: 00007fd96418eba9
RDX: ffffffffffffffff RSI: 0000000000000000 RDI: 0000200000000700
RBP: 00007fd964211e19 R08: 0000000000000000 R09: 0000000000000000
R10: ffffffffffffffff R11: 0000000000000246 R12: 0000000000000000
R13: 00007fd9643d6038 R14: 00007fd9643d5fa0 R15: 00007ffd83091ad8
 </TASK>
sched: DL replenish lagged too much
