rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 	1-....: (10494 ticks this GP) idle=103c/1/0x4000000000000000 softirq=18207/63721 fqs=5240
rcu: 	         hardirqs   softirqs   csw/system
rcu: 	 number:   845730      23622            0
rcu: 	cputime:    35501      16715          392   ==> 52510(ms)
rcu: 	(t=10502 jiffies g=11629 q=6328 ncpus=2)
CPU: 1 UID: 0 PID: 6609 Comm: syz.2.206 Not tainted 6.16.0-rc6-syzkaller-00411-g95993dc3039e-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:perf_arch_instruction_pointer+0x0/0x300
Code: 38 c1 0f 8c af fb ff ff 48 8b 7c 24 08 e8 28 ec ee 00 e9 a0 fb ff ff 0f 1f 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 <66> 0f 1f 00 55 41 57 41 56 41 55 41 54 53 48 89 fb 49 bd 00 00 00
RSP: 0018:ffffc900001df318 EFLAGS: 00000246
RAX: ffffffff81eef5bc RBX: 0000000000003015 RCX: ffff888107aa3980
RDX: 0000000000000100 RSI: 0000000000000000 RDI: ffff888136632a58
RBP: ffffc900001df410 R08: 0000000000000000 R09: ffffffff81ef20af
R10: dffffc0000000000 R11: ffffffff819a9db0 R12: ffff88802b332670
R13: 1ffff110056664ce R14: 0000000000000000 R15: ffffc900001df7c0
FS:  00007f77557d16c0(0000) GS:ffff8881a3c1f000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f77557affc8 CR3: 00000001093ac000 CR4: 00000000000006f0
Call Trace:
 <IRQ>
 perf_prepare_sample+0x206/0x2380
 perf_event_output_forward+0x151/0x430
 __perf_event_overflow+0x7cf/0xe10
 perf_swevent_event+0x2f4/0x5e0
 perf_tp_event+0x4f6/0x1380
 perf_trace_run_bpf_submit+0xee/0x170
 perf_trace_lock+0x2f8/0x3b0
 lock_release+0x3b2/0x3e0
 unwind_next_frame+0x19a9/0x2390
 arch_stack_walk+0x11c/0x150
 stack_trace_save+0x9c/0xe0
 kasan_save_stack+0x3e/0x60
 kasan_record_aux_stack+0xbd/0xd0
 kvfree_call_rcu+0xbb/0x410
 cfg80211_update_known_bss+0x634/0x1330
 __cfg80211_bss_update+0x147/0x2120
 cfg80211_inform_single_bss_data+0xba9/0x1ac0
 cfg80211_inform_bss_data+0x1fb/0x3b20
 cfg80211_inform_bss_frame_data+0x3d7/0x730
 ieee80211_bss_info_update+0x746/0x9e0
 ieee80211_scan_rx+0x593/0xa20
 ieee80211_rx_list+0x22fc/0x2d80
 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_irq_work+0xa3/0xc0
 </IRQ>
 <TASK>
 asm_sysvec_irq_work+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 8b 2d 21 f6 e8 c6 00 58 f6 fb bf 01 00 00 00 <e8> 1b ab ff ff 48 c7 44 24 40 00 00 00 00 9c 8f 44 24 40 8b 44 24
RSP: 0018:ffffc90007a2f460 EFLAGS: 00000286
RAX: 8b2b52f81c58f000 RBX: 0000000000000000 RCX: 8b2b52f81c58f000
RDX: 0000000000000000 RSI: ffffffff8d99883e RDI: 0000000000000001
RBP: ffffc90007a2f510 R08: ffffffff8fa1e8f7 R09: 1ffffffff1f43d1e
R10: dffffc0000000000 R11: fffffbfff1f43d1f R12: 0000000000000000
R13: 0000000000000000 R14: dffffc0000000000 R15: 1ffff92000f45e8c
 irqentry_exit+0x6f/0x90
 asm_sysvec_apic_timer_interrupt+0x1a/0x20
RIP: 0010:unwind_get_return_address+0x8/0x90
Code: 00 4c 89 f7 4c 89 fe e9 29 ff ff ff e8 11 df fb 09 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 41 57 41 56 <53> 48 89 fb 49 be 00 00 00 00 00 fc ff df 48 89 f8 48 c1 e8 03 42
RSP: 0018:ffffc90007a2f5d0 EFLAGS: 00000202
RAX: 0000000090321001 RBX: ffffc90007a2f6a0 RCX: 8b2b52f81c58f000
RDX: 0000000000000000 RSI: ffffffff8db8655b RDI: ffffc90007a2f5e8
RBP: ffffc90007a2f670 R08: ffffc90007a2ed17 R09: 0000000000000000
R10: ffffc90007a2ed00 R11: fffff52000f45da3 R12: ffff888107aa3980
R13: ffff888020860200 R14: ffffffff81ad0050 R15: ffffc90007a2f5e8
 arch_stack_walk+0xfc/0x150
 stack_trace_save+0x9c/0xe0
 kasan_save_track+0x3e/0x80
 __kasan_slab_alloc+0x6c/0x80
 kmem_cache_alloc_noprof+0x1c1/0x3c0
 copy_fs_struct+0x4f/0x270
 copy_fs+0x6d/0x150
 copy_process+0x15a7/0x3b80
 kernel_clone+0x21e/0x870
 __x64_sys_clone+0x18b/0x1e0
 do_syscall_64+0xfa/0x3b0
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f775498e9a9
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:00007f77557d0fe8 EFLAGS: 00000206 ORIG_RAX: 0000000000000038
RAX: ffffffffffffffda RBX: 00007f7754bb5fa0 RCX: 00007f775498e9a9
RDX: 0000000000000000 RSI: 00002000000000e0 RDI: 000000008c180400
RBP: 00007f7754a10d69 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000206 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f7754bb5fa0 R15: 00007fffe1aa06c8
 </TASK>
