rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 	1-....: (10061 ticks this GP) idle=3d5c/1/0x4000000000000000 softirq=135525/135673 fqs=5230
rcu: 	         hardirqs   softirqs   csw/system
rcu: 	 number:  1073772        532            0
rcu: 	cputime:    33547      18939           44   ==> 52500(ms)
rcu: 	(t=10502 jiffies g=127189 q=2071 ncpus=2)
CPU: 1 UID: 0 PID: 4344 Comm: syz.2.12987 Not tainted 6.16.0-syzkaller-11113-gf3af62b6cee8 #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:lock_acquire+0xb9/0x360
Code: 6c fc 05 0e 00 0f 84 fa 00 00 00 65 8b 05 1f 47 02 11 85 c0 0f 85 eb 00 00 00 65 48 8b 04 25 08 60 9f 92 83 b8 ec 0a 00 00 00 <0f> 85 d5 00 00 00 48 c7 44 24 30 00 00 00 00 9c 8f 44 24 30 4c 89
RSP: 0018:ffffc900001e0378 EFLAGS: 00000246
RAX: ffff88810dd4d640 RBX: 0000000000000000 RCX: ed8a0f8b4c994300
RDX: 0000000000000000 RSI: ffffffff8172c042 RDI: 1ffffffff1c273cc
RBP: ffffffff8172c025 R08: 0000000000000000 R09: 0000000000000000
R10: ffffc900001e0538 R11: ffffffff81ac34b0 R12: 0000000000000002
R13: ffffffff8e139e60 R14: 0000000000000000 R15: 0000000000000000
FS:  00007f6513ee16c0(0000) GS:ffff8881a3c2a000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fb3274e7d60 CR3: 000000012b58c000 CR4: 00000000000006f0
DR0: 0000200000000300 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 00000000000f0602
Call Trace:
 <IRQ>
 unwind_next_frame+0xc2/0x2390
 arch_stack_walk+0x11c/0x150
 stack_trace_save+0x9c/0xe0
 kasan_save_track+0x3e/0x80
 __kasan_slab_alloc+0x6c/0x80
 kmem_cache_alloc_node_noprof+0x1bb/0x3c0
 __alloc_skb+0x112/0x2d0
 __netdev_alloc_skb+0x108/0x970
 __ieee80211_beacon_get+0xc06/0x1880
 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:kasan_check_range+0x9f/0x2c0
Code: 00 fc ff df 4d 8d 34 19 4d 89 f4 4d 29 dc 49 83 fc 10 7f 29 4d 85 e4 0f 84 41 01 00 00 4c 89 cb 48 f7 d3 4c 01 fb 41 80 3b 00 <0f> 85 de 01 00 00 49 ff c3 48 ff c3 75 ee e9 21 01 00 00 44 89 dd
RSP: 0018:ffffc90006de7488 EFLAGS: 00000246
RAX: ffffffff81748101 RBX: ffffffffffffffff RCX: ffffffff817481b9
RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffffea0004ad6100
RBP: ffffc90006de7570 R08: ffffea0004ad6107 R09: 1ffffd400095ac20
R10: dffffc0000000000 R11: fffff9400095ac20 R12: 0000000000000001
R13: 1ffff92000dbce98 R14: fffff9400095ac21 R15: 1ffffd400095ac20
 pagetable_dtor_free+0x149/0x3b0
 __mmdrop+0xb5/0x460
 finish_task_switch+0x3ee/0x950
 __schedule+0x17a0/0x4cc0
 preempt_schedule_irq+0xb5/0x150
 irqentry_exit+0x6f/0x90
 asm_sysvec_apic_timer_interrupt+0x1a/0x20
RIP: 0010:sched_mm_cid_exit_signals+0x320/0x4b0
Code: 6e 35 00 48 c7 44 24 60 00 00 00 00 9c 8f 44 24 60 f6 44 24 61 02 75 57 f7 c3 00 02 00 00 74 01 fb 48 c7 44 24 40 0e 36 e0 45 <4b> c7 04 3c 00 00 00 00 66 43 c7 44 3c 09 00 00 43 c6 44 3c 0b 00
RSP: 0018:ffffc90006de79a0 EFLAGS: 00000206
RAX: ed8a0f8b4c994300 RBX: 0000000000000246 RCX: ed8a0f8b4c994300
RDX: 0000000000000007 RSI: ffffffff8d9b1618 RDI: ffffffff8be2fd00
RBP: ffffc90006de7a88 R08: ffffffff8fa32437 R09: 1ffffffff1f46486
R10: dffffc0000000000 R11: fffffbfff1f46487 R12: 1ffff92000dbcf3c
R13: dffffc0000000000 R14: ffff88810dd4ebcc R15: dffffc0000000000
 exit_signals+0x31a/0x580
 do_exit+0x352/0x2300
 do_group_exit+0x21c/0x2d0
 get_signal+0x1286/0x1340
 arch_do_signal_or_restart+0x9a/0x750
 exit_to_user_mode_loop+0x75/0x110
 do_syscall_64+0x2bd/0x3b0
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f6512f8ebe9
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:00007f6513ee10e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: 0000000000000001 RBX: 00007f65131b5fa8 RCX: 00007f6512f8ebe9
RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00007f65131b5fac
RBP: 00007f65131b5fa0 R08: 7fffffffffffffff R09: 0000000000000000
R10: 0000000000000009 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f65131b6038 R14: 00007ffde9968a70 R15: 00007ffde9968b58
 </TASK>
