------------[ cut here ]------------
WARNING: CPU: 0 PID: 0 at net/mac80211/tx.c:5031 __ieee80211_beacon_update_cntdwn net/mac80211/tx.c:5031 [inline]
WARNING: CPU: 0 PID: 0 at net/mac80211/tx.c:5031 __ieee80211_beacon_get+0x1233/0x1600 net/mac80211/tx.c:5442
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 10/25/2025
RIP: 0010:__ieee80211_beacon_update_cntdwn net/mac80211/tx.c:5031 [inline]
RIP: 0010:__ieee80211_beacon_get+0x1233/0x1600 net/mac80211/tx.c:5442
Code: 24 4c 89 e7 e8 0e 25 db f7 45 31 f6 4c 8b bc 24 a0 00 00 00 e9 7a fe ff ff e8 59 f6 9d f7 0f 0b e9 f6 f7 ff ff e8 4d f6 9d f7 <0f> 0b e9 48 fb ff ff e8 41 f6 9d f7 48 c7 c7 e0 96 23 8e 4c 89 e6
vkms_vblank_simulate: vblank timer overrun
RSP: 0018:ffffc90000007a18 EFLAGS: 00010246
RAX: ffffffff89e79a73 RBX: ffffffff89e78876 RCX: ffffffff8ca93440
RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: ffffffff8ca93440 R09: 0000000000000003
R10: 0000000000000007 R11: 0000000000000100 R12: ffff88805ccba3c0
R13: dffffc0000000000 R14: ffff88805ccba8b0 R15: ffff88801f38d024
FS:  0000000000000000(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2d418ff8 CR3: 000000001e334000 CR4: 00000000003506f0
Call Trace:
 <IRQ>
 ieee80211_beacon_get_tim+0xb8/0x560 net/mac80211/tx.c:5569
 ieee80211_beacon_get include/net/mac80211.h:5440 [inline]
 mac80211_hwsim_beacon_tx+0x3c7/0x780 drivers/net/wireless/virtual/mac80211_hwsim.c:2265
 __iterate_interfaces+0x243/0x500 net/mac80211/util.c:766
 ieee80211_iterate_active_interfaces_atomic+0xdb/0x180 net/mac80211/util.c:802
 mac80211_hwsim_beacon+0xbb/0x1b0 drivers/net/wireless/virtual/mac80211_hwsim.c:2295
 __run_hrtimer kernel/time/hrtimer.c:1750 [inline]
 __hrtimer_run_queues+0x51e/0xc40 kernel/time/hrtimer.c:1814
 hrtimer_run_softirq+0x187/0x2b0 kernel/time/hrtimer.c:1831
 handle_softirqs+0x280/0x820 kernel/softirq.c:578
 __do_softirq kernel/softirq.c:612 [inline]
 invoke_softirq kernel/softirq.c:452 [inline]
 __irq_exit_rcu+0xc7/0x190 kernel/softirq.c:661
 irq_exit_rcu+0x9/0x20 kernel/softirq.c:673
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1088 [inline]
 sysvec_apic_timer_interrupt+0xa4/0xc0 arch/x86/kernel/apic/apic.c:1088
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:687
RIP: 0010:steal_cookie_task kernel/sched/core.c:6360 [inline]
RIP: 0010:sched_core_balance+0xa83/0xff0 kernel/sched/core.c:6379
Code: 00 48 8b 7c 24 28 e8 8c 49 13 09 e9 50 02 00 00 4c 8b 64 24 20 48 8b 7c 24 30 e8 78 49 13 09 e8 43 23 2e 00 fb 80 7c 24 18 00 <4c> 8b 74 24 50 0f 85 5f 03 00 00 ff c3 83 e3 0f 4c 39 fb 0f 86 5b
RSP: 0018:ffffffff8ca079a0 EFLAGS: 00000246
RAX: dd589193ab4e1c00 RBX: 0000000000000001 RCX: dd589193ab4e1c00
RDX: dffffc0000000000 RSI: ffffffff8aaabce0 RDI: ffffffff8afc6f80
RBP: ffffffff8ca07b40 R08: ffffffff8e4a212f R09: 1ffffffff1c94425
R10: dffffc0000000000 R11: fffffbfff1c94426 R12: ffff88801a24a920
R13: dffffc0000000000 R14: ffff8880b8e3c000 R15: 0000000000000001
 do_balance_callbacks kernel/sched/core.c:5023 [inline]
 __balance_callbacks+0x103/0x190 kernel/sched/core.c:5077
 __schedule+0x1716/0x44d0 kernel/sched/core.c:6702
 schedule_idle+0x4e/0x80 kernel/sched/core.c:6801
 do_idle+0x4ac/0x510 kernel/sched/idle.c:310
 cpu_startup_entry+0x43/0x60 kernel/sched/idle.c:380
 rest_init+0x2e2/0x300 init/main.c:744
 arch_call_rest_init+0xe/0x10 init/main.c:841
 start_kernel+0x459/0x4e0 init/main.c:1086
 x86_64_start_reservations+0x2a/0x30 arch/x86/kernel/head64.c:555
 x86_64_start_kernel+0x60/0x60 arch/x86/kernel/head64.c:536
 secondary_startup_64_no_verify+0x179/0x17b
 </TASK>
----------------
Code disassembly (best guess):
   0:	00 48 8b             	add    %cl,-0x75(%rax)
   3:	7c 24                	jl     0x29
   5:	28 e8                	sub    %ch,%al
   7:	8c 49 13             	mov    %cs,0x13(%rcx)
   a:	09 e9                	or     %ebp,%ecx
   c:	50                   	push   %rax
   d:	02 00                	add    (%rax),%al
   f:	00 4c 8b 64          	add    %cl,0x64(%rbx,%rcx,4)
  13:	24 20                	and    $0x20,%al
  15:	48 8b 7c 24 30       	mov    0x30(%rsp),%rdi
  1a:	e8 78 49 13 09       	call   0x9134997
  1f:	e8 43 23 2e 00       	call   0x2e2367
  24:	fb                   	sti
  25:	80 7c 24 18 00       	cmpb   $0x0,0x18(%rsp)
* 2a:	4c 8b 74 24 50       	mov    0x50(%rsp),%r14 <-- trapping instruction
  2f:	0f 85 5f 03 00 00    	jne    0x394
  35:	ff c3                	inc    %ebx
  37:	83 e3 0f             	and    $0xf,%ebx
  3a:	4c 39 fb             	cmp    %r15,%rbx
  3d:	0f                   	.byte 0xf
  3e:	86                   	.byte 0x86
  3f:	5b                   	pop    %rbx