rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 	1-....: (10437 ticks this GP) idle=7b34/1/0x4000000000000000 softirq=15122/15305 fqs=5125
rcu: 	         hardirqs   softirqs   csw/system
rcu: 	 number:   977084        553            0
rcu: 	cputime:    35917      16560           72   ==> 52480(ms)
rcu: 	(t=10500 jiffies g=8129 q=1827 ncpus=2)
CPU: 1 UID: 0 PID: 6100 Comm: syz.1.66 Not tainted 6.16.0-rc6-syzkaller-00411-g95993dc3039e #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:__read_once_word_nocheck+0x3/0x10
Code: b0 00 48 ba 00 00 00 00 00 fc ff df e9 88 fc ff ff 66 0f 1f 44 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 48 8b 07 <e9> 98 89 fe 09 cc cc cc cc cc cc cc cc 90 90 90 90 90 90 90 90 90
RSP: 0018:ffffc900001e0690 EFLAGS: 00000202
RAX: ffffffff81a7e74e RBX: ffffc900043ffa18 RCX: 1ffff9200003c001
RDX: ffffffff90356c82 RSI: 0000000000000002 RDI: ffffc900043ffa18
RBP: 1ffff9200003c0ee R08: 0000000000000001 R09: ffffffff8172aae5
R10: ffffc900001e0400 R11: ffffffffa0000818 R12: ffffc90004400000
R13: 1ffff9200003c0ef R14: ffffc900001e0768 R15: ffffc900043f8000
FS:  00007f12a90a76c0(0000) GS:ffff8881a3c1f000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00005564437595c8 CR3: 0000000024a9a000 CR4: 00000000000006f0
DR0: 0000200000000700 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 <IRQ>
 unwind_next_frame+0xc3c/0x2390
 arch_stack_walk+0x11c/0x150
 stack_trace_save+0x9c/0xe0
 kasan_save_track+0x3e/0x80
 kasan_save_free_info+0x46/0x50
 __kasan_slab_free+0x62/0x70
 kmem_cache_free+0x18f/0x400
 mac80211_hwsim_beacon_tx+0x3f0/0x860
 __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_irq_work+0xa3/0xc0
 </IRQ>
 <TASK>
 asm_sysvec_irq_work+0x1a/0x20
RIP: 0010:finish_task_switch+0x26b/0x950
Code: 0f 84 3c 01 00 00 48 85 db 0f 85 63 01 00 00 0f 1f 44 00 00 4c 8b 75 d0 4c 89 e7 e8 0f 1a df 09 e8 ba b9 35 00 fb 4c 8b 65 c0 <49> 8d bc 24 18 16 00 00 48 89 f8 48 c1 e8 03 42 0f b6 04 28 84 c0
RSP: 0018:ffffc900043ff418 EFLAGS: 00000286
RAX: 0b93ea86d93fa300 RBX: 0000000000000000 RCX: 0b93ea86d93fa300
RDX: 0000000000000000 RSI: ffffffff8d998836 RDI: ffffffff8be29f40
RBP: ffffc900043ff470 R08: ffffffff8fa1e8f7 R09: 1ffffffff1f43d1e
R10: dffffc0000000000 R11: fffffbfff1f43d1f R12: ffff888109509cc0
R13: dffffc0000000000 R14: ffff888106143980 R15: ffff88813663ab98
 __schedule+0x16fd/0x4d00
 preempt_schedule_irq+0xb5/0x150
 irqentry_exit+0x6f/0x90
 asm_sysvec_apic_timer_interrupt+0x1a/0x20
RIP: 0010:preempt_schedule_thunk+0x1/0x30
Code: 8c 00 48 c7 c0 a0 57 80 8b e9 4b bd 3d 0a cc cc cc cc cc cc cc cc cc cc cc 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 55 <48> 89 e5 57 56 52 51 50 41 50 41 51 41 52 41 53 e8 4a 0a 3c 0a 41
RSP: 0018:ffffc900043ff810 EFLAGS: 00000246
RAX: 0000000000000000 RBX: 0000000000000a06 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffffffff8d998836 RDI: 00000000ffffffff
RBP: ffffc900043ff8b0 R08: ffffffff8fa1e8f7 R09: 1ffffffff1f43d1e
R10: dffffc0000000000 R11: fffffbfff1f43d1f R12: dffffc0000000000
R13: ffffffff8e144480 R14: ffffffff8e1449d8 R15: 1ffff9200087ff04
 _raw_spin_unlock_irqrestore+0xfd/0x110
 rcu_preempt_deferred_qs_irqrestore+0x9d2/0xc40
 rcu_read_unlock_special+0x3fe/0x4c0
 __rcu_read_unlock+0x84/0xe0
 task_mm_cid_work+0x46e/0x760
 task_work_run+0x1d4/0x260
 get_signal+0x11ed/0x1340
 arch_do_signal_or_restart+0x9a/0x750
 irqentry_exit_to_user_mode+0x81/0x120
 asm_sysvec_apic_timer_interrupt+0x1a/0x20
RIP: 0033:0x7f12a805e5d0
Code: 46 0b ff ff 48 8d 3d d1 39 1b 00 e8 3a 0b ff ff 48 8d 3d a7 35 1b 00 e8 2e 0b ff ff 66 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 <41> 56 41 54 55 53 48 83 ec 68 48 63 57 28 48 89 3c 24 48 8d 74 24
RSP: 002b:00007f12a90a70e8 EFLAGS: 00000246
RAX: 0000000000000001 RBX: 00007f12a83b5fa8 RCX: 00007f12a818e9a9
RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00007f12a83b5fa0
RBP: 00007f12a83b5fa0 R08: 7fffffffffffffff R09: 0000000000000000
R10: 0000000000000003 R11: 0000000000000246 R12: 00007f12a83b5fac
R13: 0000000000000000 R14: 00007ffd01157200 R15: 00007ffd011572e8
 </TASK>
