------------[ cut here ]------------
WARNING: CPU: 1 PID: 0 at net/mac80211/tx.c:5048 __ieee80211_beacon_update_cntdwn net/mac80211/tx.c:5048 [inline]
WARNING: CPU: 1 PID: 0 at net/mac80211/tx.c:5048 __ieee80211_beacon_get+0x1141/0x1520 net/mac80211/tx.c:5459
Modules linked in:
CPU: 1 PID: 0 Comm: swapper/1 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
RIP: 0010:__ieee80211_beacon_update_cntdwn net/mac80211/tx.c:5048 [inline]
RIP: 0010:__ieee80211_beacon_get+0x1141/0x1520 net/mac80211/tx.c:5459
Code: f7 4c 89 ef e8 50 38 b8 f7 45 31 ed 4c 8b bc 24 a0 00 00 00 e9 7f fe ff ff e8 1b 4c 7a f7 0f 0b e9 61 f8 ff ff e8 0f 4c 7a f7 <0f> 0b e9 85 fb ff ff e8 03 4c 7a f7 48 c7 c7 60 b8 65 8e 4c 89 e6
RSP: 0018:ffffc900001f0a18 EFLAGS: 00010246
RAX: ffffffff8a0d2611 RBX: dffffc0000000000 RCX: ffff88801be5bc00
RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: ffff88801be5bc00 R09: 0000000000000003
R10: 0000000000000007 R11: 0000000000000100 R12: ffff88806a7de440
R13: ffff88805c5b0c24 R14: ffff88806a7de930 R15: ffff88805c5b0c00
FS:  0000000000000000(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fb17ed87240 CR3: 0000000063515000 CR4: 00000000003506e0
Call Trace:
 <IRQ>
 ieee80211_beacon_get_tim+0xbf/0x580 net/mac80211/tx.c:5586
 ieee80211_beacon_get include/net/mac80211.h:5440 [inline]
 mac80211_hwsim_beacon_tx+0x3bd/0x770 drivers/net/wireless/virtual/mac80211_hwsim.c:2265
 __iterate_interfaces+0x225/0x4c0 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:1754 [inline]
 __hrtimer_run_queues+0x525/0xc10 kernel/time/hrtimer.c:1818
 hrtimer_run_softirq+0x177/0x290 kernel/time/hrtimer.c:1835
 handle_softirqs+0x27d/0x820 kernel/softirq.c:578
 __do_softirq kernel/softirq.c:612 [inline]
 invoke_softirq kernel/softirq.c:452 [inline]
 __irq_exit_rcu+0xd3/0x190 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:sched_core_balance+0x14a/0x1010 kernel/sched/core.c:6377
Code: c2 c0 7d ca 8a e8 46 f8 09 00 4c 89 b4 24 88 00 00 00 e9 60 0e 00 00 4c 89 f7 e8 b1 7d 39 09 e8 4c a0 2e 00 fb 4c 8b 74 24 40 <41> 83 fe 08 0f 83 2a 0e 00 00 4e 8d 3c f5 30 5a a9 8c 4c 89 f8 48
RSP: 0018:ffffc900001879c0 EFLAGS: 00000282
RAX: 2a911f6e54663a00 RBX: ffff8880b8f3cfc8 RCX: 2a911f6e54663a00
RDX: dffffc0000000000 RSI: ffffffff8acacbe0 RDI: ffffffff8b1d32e0
RBP: ffffc90000187b50 R08: ffffffff8e8c772f R09: 1ffffffff1d18ee5
R10: dffffc0000000000 R11: fffffbfff1d18ee6 R12: dffffc0000000000
R13: 0000000000000000 R14: 0000000000000001 R15: ffffffff815f4180
 do_balance_callbacks kernel/sched/core.c:5025 [inline]
 __balance_callbacks kernel/sched/core.c:5079 [inline]
 finish_lock_switch kernel/sched/core.c:5135 [inline]
 finish_task_switch+0x393/0x8f0 kernel/sched/core.c:5254
 context_switch kernel/sched/core.c:5385 [inline]
 __schedule+0x15b6/0x4660 kernel/sched/core.c:6701
 schedule_idle+0x4e/0x80 kernel/sched/core.c:6803
 do_idle+0x55c/0x5c0 kernel/sched/idle.c:331
 cpu_startup_entry+0x43/0x60 kernel/sched/idle.c:401
 start_secondary+0xee/0xf0 arch/x86/kernel/smpboot.c:323
 secondary_startup_64_no_verify+0x179/0x17b
 </TASK>
----------------
Code disassembly (best guess):
   0:	c2 c0 7d             	ret    $0x7dc0
   3:	ca 8a e8             	lret   $0xe88a
   6:	46 f8                	rex.RX clc
   8:	09 00                	or     %eax,(%rax)
   a:	4c 89 b4 24 88 00 00 	mov    %r14,0x88(%rsp)
  11:	00
  12:	e9 60 0e 00 00       	jmp    0xe77
  17:	4c 89 f7             	mov    %r14,%rdi
  1a:	e8 b1 7d 39 09       	call   0x9397dd0
  1f:	e8 4c a0 2e 00       	call   0x2ea070
  24:	fb                   	sti
  25:	4c 8b 74 24 40       	mov    0x40(%rsp),%r14
* 2a:	41 83 fe 08          	cmp    $0x8,%r14d <-- trapping instruction
  2e:	0f 83 2a 0e 00 00    	jae    0xe5e
  34:	4e 8d 3c f5 30 5a a9 	lea    -0x7356a5d0(,%r14,8),%r15
  3b:	8c
  3c:	4c 89 f8             	mov    %r15,%rax
  3f:	48                   	rex.W