------------[ cut here ]------------
WARNING: CPU: 0 PID: 0 at net/mac80211/tx.c:4944 __ieee80211_beacon_update_cntdwn net/mac80211/tx.c:4944 [inline]
WARNING: CPU: 0 PID: 0 at net/mac80211/tx.c:4944 __ieee80211_beacon_get+0x1952/0x1f50 net/mac80211/tx.c:5265
Modules linked in:
CPU: 0 PID: 0 Comm: swapper/0 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025
RIP: 0010:__ieee80211_beacon_update_cntdwn net/mac80211/tx.c:4944 [inline]
RIP: 0010:__ieee80211_beacon_get+0x1952/0x1f50 net/mac80211/tx.c:5265
Code: ff ff ff e8 30 36 e4 f7 0f 0b 48 8b 7c 24 20 e8 d4 a4 7f fe e9 dd e9 ff ff e8 1a 36 e4 f7 0f 0b e9 f1 ee ff ff e8 0e 36 e4 f7 <0f> 0b e9 61 f2 ff ff e8 02 36 e4 f7 48 c7 c7 f0 7e fa 8d 4c 89 f6
RSP: 0018:ffffc900000078a0 EFLAGS: 00010246
RAX: ffffffff899c9a82 RBX: 0000000000000000 RCX: ffffffff8c8bc680
RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc90000007aa8 R08: ffffffff8c8bc680 R09: 0000000000000003
R10: 0000000000000007 R11: 0000000000000100 R12: 1ffff92000000f2c
R13: dffffc0000000000 R14: ffff888055fae258 R15: ffff88807f937a00
FS:  0000000000000000(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b31e0bff8 CR3: 0000000065fb9000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <IRQ>
 ieee80211_beacon_get_tim+0x5b/0x4d0 net/mac80211/tx.c:5352
 ieee80211_beacon_get include/net/mac80211.h:5264 [inline]
 mac80211_hwsim_beacon_tx+0x21c/0xae0 drivers/net/wireless/mac80211_hwsim.c:2091
 __iterate_interfaces+0x243/0x500 net/mac80211/util.c:788
 ieee80211_iterate_active_interfaces_atomic+0xd7/0x170 net/mac80211/util.c:824
 mac80211_hwsim_beacon+0xb7/0x1b0 drivers/net/wireless/mac80211_hwsim.c:2147
 __run_hrtimer kernel/time/hrtimer.c:1752 [inline]
 __hrtimer_run_queues+0x554/0xd60 kernel/time/hrtimer.c:1816
 hrtimer_run_softirq+0x183/0x2a0 kernel/time/hrtimer.c:1833
 handle_softirqs+0x2a1/0x920 kernel/softirq.c:596
 __do_softirq kernel/softirq.c:630 [inline]
 invoke_softirq kernel/softirq.c:470 [inline]
 __irq_exit_rcu+0x12f/0x220 kernel/softirq.c:679
 irq_exit_rcu+0x5/0x20 kernel/softirq.c:691
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1118 [inline]
 sysvec_apic_timer_interrupt+0xa0/0xc0 arch/x86/kernel/apic/apic.c:1118
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:691
RIP: 0010:steal_cookie_task kernel/sched/core.c:6221 [inline]
RIP: 0010:sched_core_balance+0x5ab/0xdc0 kernel/sched/core.c:6240
Code: 05 00 00 48 8b 7c 24 20 e8 d2 84 c7 08 e9 c6 04 00 00 4c 8b 7c 24 38 48 8b 7c 24 48 e8 be 84 c7 08 e8 79 57 2d 00 fb 45 84 f6 <0f> 85 09 06 00 00 48 c1 e3 20 48 8b 44 24 50 42 0f b6 04 20 84 c0
RSP: 0018:ffffffff8c807a00 EFLAGS: 00000246
RAX: ef7d71e22b110e00 RBX: 0000000000000001 RCX: ef7d71e22b110e00
RDX: dffffc0000000000 RSI: ffffffff8a8c0500 RDI: ffffffff8adefca0
RBP: ffffffff8c807b68 R08: dffffc0000000000 R09: ffffed10171c7559
R10: ffffed10171c7559 R11: 1ffff110171c7558 R12: dffffc0000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
 do_balance_callbacks kernel/sched/core.c:4892 [inline]
 __balance_callbacks kernel/sched/core.c:4946 [inline]
 finish_lock_switch kernel/sched/core.c:5002 [inline]
 finish_task_switch+0x39d/0x8f0 kernel/sched/core.c:5121
 context_switch kernel/sched/core.c:5247 [inline]
 __schedule+0x10f4/0x40b0 kernel/sched/core.c:6561
 schedule_idle+0x4a/0x90 kernel/sched/core.c:6665
 do_idle+0x525/0x570 kernel/sched/idle.c:331
 cpu_startup_entry+0x3f/0x60 kernel/sched/idle.c:401
 rest_init+0x2dc/0x300 init/main.c:733
 arch_call_rest_init+0xa/0xa init/main.c:893
 start_kernel+0x490/0x539 init/main.c:1140
 secondary_startup_64_no_verify+0xcf/0xdb
 </TASK>
----------------
Code disassembly (best guess):
   0:	05 00 00 48 8b       	add    $0x8b480000,%eax
   5:	7c 24                	jl     0x2b
   7:	20 e8                	and    %ch,%al
   9:	d2 84 c7 08 e9 c6 04 	rolb   %cl,0x4c6e908(%rdi,%rax,8)
  10:	00 00                	add    %al,(%rax)
  12:	4c 8b 7c 24 38       	mov    0x38(%rsp),%r15
  17:	48 8b 7c 24 48       	mov    0x48(%rsp),%rdi
  1c:	e8 be 84 c7 08       	call   0x8c784df
  21:	e8 79 57 2d 00       	call   0x2d579f
  26:	fb                   	sti
  27:	45 84 f6             	test   %r14b,%r14b
* 2a:	0f 85 09 06 00 00    	jne    0x639 <-- trapping instruction
  30:	48 c1 e3 20          	shl    $0x20,%rbx
  34:	48 8b 44 24 50       	mov    0x50(%rsp),%rax
  39:	42 0f b6 04 20       	movzbl (%rax,%r12,1),%eax
  3e:	84 c0                	test   %al,%al