rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 	1-....: (10492 ticks this GP) idle=94ec/1/0x4000000000000000 softirq=44263/46056 fqs=5216
rcu: 	         hardirqs   softirqs   csw/system
rcu: 	 number:  1210237       1901            0
rcu: 	cputime:    30724      21745           56   ==> 52490(ms)
rcu: 	(t=10500 jiffies g=34813 q=1907 ncpus=2)
CPU: 1 UID: 0 PID: 10519 Comm: syz.6.1153 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:__ieee80211_beacon_get+0xbbb/0x1880
Code: 07 00 00 4c 89 fd 48 c1 ed 03 49 bd 00 00 00 00 00 fc ff df 42 0f b6 44 2d 00 84 c0 0f 85 ad 09 00 00 4c 89 7c 24 08 41 8b 37 <48> 8d 53 10 48 89 d3 48 c1 eb 03 42 0f b6 04 2b 84 c0 48 89 54 24
RSP: 0018:ffffc900001e0a00 EFLAGS: 00000246
RAX: 0000000000000000 RBX: ffff8881122b3800 RCX: ffff888021c55640
RDX: 0000000000000100 RSI: 0000000000000010 RDI: 0000000000000000
RBP: 1ffff11021ecc2bf R08: ffff888021c55640 R09: 0000000000000003
R10: 0000000000000007 R11: 0000000000000100 R12: ffff88812fbf6500
R13: dffffc0000000000 R14: ffff88812fbf69d0 R15: ffff88810f6615fc
FS:  00007f22817f46c0(0000) GS:ffff8881a3c11000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fb22e363ba8 CR3: 00000000335a0000 CR4: 00000000000006f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 <IRQ>
 ieee80211_beacon_get_tim+0xb4/0x2b0
 mac80211_hwsim_beacon_tx+0x3ce/0x860
 __iterate_interfaces+0x2ab/0x590
 ieee80211_iterate_active_interfaces_atomic+0xdb/0x180
 mac80211_hwsim_beacon+0xbb/0x1c0
 __hrtimer_run_queues+0x52c/0xc60
 hrtimer_run_softirq+0x187/0x2b0
 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:preempt_schedule_notrace+0xcc/0x110
Code: 41 5e 41 5f 5d c3 cc cc cc cc cc 48 f7 03 08 00 00 00 74 c8 65 ff 05 f3 ad 24 07 bf 01 00 00 00 e8 89 12 15 f6 bf 01 00 00 00 <e8> 5f ac ff ff 65 8b 05 d8 ad 24 07 65 ff 0d d1 ad 24 07 65 48 8b
RSP: 0018:ffffc900035af880 EFLAGS: 00000246
RAX: 1ffff1100438ad64 RBX: ffff888021c55640 RCX: dffffc0000000000
RDX: 0000000000000000 RSI: ffffffff8be34460 RDI: 0000000000000001
RBP: ffffc900035af900 R08: ffffffff8fa3b537 R09: 1ffffffff1f476a6
R10: dffffc0000000000 R11: fffffbfff1f476a7 R12: ffff888135a309f0
R13: 0000000000000000 R14: dffffc0000000000 R15: 1ffff920006b5f10
 preempt_schedule_notrace_thunk+0x16/0x30
 stack_depot_save_flags+0x32c/0x860
 kasan_save_track+0x4f/0x80
 kasan_save_free_info+0x46/0x50
 __kasan_slab_free+0x5b/0x80
 kfree+0x18e/0x440
 find_get_pmu_context+0x7cd/0x890
 __se_sys_perf_event_open+0xbfd/0x1d70
 do_syscall_64+0xfa/0x3b0
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f228098ec29
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:00007f22817f4038 EFLAGS: 00000246 ORIG_RAX: 000000000000012a
RAX: ffffffffffffffda RBX: 00007f2280bd5fa0 RCX: 00007f228098ec29
RDX: ffffffffffffffff RSI: 0000000000000000 RDI: 0000200000000480
RBP: 00007f2280a11e41 R08: 0000000000000000 R09: 0000000000000000
R10: ffffffffffffffff R11: 0000000000000246 R12: 0000000000000000
R13: 00007f2280bd6038 R14: 00007f2280bd5fa0 R15: 00007ffc3318a9c8
 </TASK>
