------------[ cut here ]------------
WARNING: CPU: 1 PID: 0 at net/mac80211/tx.c:4859 __ieee80211_beacon_update_cntdwn net/mac80211/tx.c:4859 [inline]
WARNING: CPU: 1 PID: 0 at net/mac80211/tx.c:4859 __ieee80211_beacon_get+0x179f/0x2000 net/mac80211/tx.c:5083
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 10/25/2025
RIP: 0010:__ieee80211_beacon_update_cntdwn net/mac80211/tx.c:4859 [inline]
RIP: 0010:__ieee80211_beacon_get+0x179f/0x2000 net/mac80211/tx.c:5083
Code: 2a f8 0f 0b 4f 89 64 2f 04 4f 89 64 2f 0c 43 c6 44 2f 14 f8 e9 19 fe ff ff e8 0d c0 2a f8 0f 0b e9 03 ef ff ff e8 01 c0 2a f8 <0f> 0b e9 76 f2 ff ff e8 15 89 6d 00 89 d9 80 e1 07 80 c1 03 38 c1
RSP: 0018:ffffc90000dd08e0 EFLAGS: 00010246
RAX: ffffffff894e5f9f RBX: ffff88806116a298 RCX: ffff888016e98000
RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc90000dd0b08 R08: ffff888016e98000 R09: 0000000000000003
R10: 0000000000000007 R11: 0000000000000100 R12: ffff88801e7e0e00
R13: dffffc0000000000 R14: 0000000000000000 R15: 1ffff920001ba12c
FS:  0000000000000000(0000) GS:ffff8880b9100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000200000030000 CR3: 000000006a8e1000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <IRQ>
 ieee80211_beacon_get_tim+0x48/0x840 net/mac80211/tx.c:5202
 ieee80211_beacon_get include/net/mac80211.h:4983 [inline]
 mac80211_hwsim_beacon_tx+0xf4/0x920 drivers/net/wireless/mac80211_hwsim.c:1812
 __iterate_interfaces+0x243/0x500 net/mac80211/util.c:793
 ieee80211_iterate_active_interfaces_atomic+0xb3/0x140 net/mac80211/util.c:829
 mac80211_hwsim_beacon+0x9b/0x180 drivers/net/wireless/mac80211_hwsim.c:1865
 __run_hrtimer kernel/time/hrtimer.c:1685 [inline]
 __hrtimer_run_queues+0x4eb/0xb70 kernel/time/hrtimer.c:1749
 hrtimer_run_softirq+0x176/0x240 kernel/time/hrtimer.c:1766
 handle_softirqs+0x339/0x830 kernel/softirq.c:576
 __do_softirq kernel/softirq.c:610 [inline]
 invoke_softirq kernel/softirq.c:450 [inline]
 __irq_exit_rcu+0x13b/0x230 kernel/softirq.c:659
 irq_exit_rcu+0x5/0x20 kernel/softirq.c:671
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1108 [inline]
 sysvec_apic_timer_interrupt+0xa0/0xc0 arch/x86/kernel/apic/apic.c:1108
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:676
RIP: 0010:default_idle_call+0xb9/0xc0 kernel/sched/idle.c:129
Code: 7d 91 9f f7 48 c7 c7 d3 3d c5 89 e8 11 ab f6 ff fb e8 eb ba f6 ff bf ff ff ff ff 89 c6 5b e9 8e cd 8f f7 e8 49 0d ba f7 fb 5b <c3> 66 0f 1f 44 00 00 41 57 41 56 53 49 be 00 00 00 00 00 fc ff df
RSP: 0018:ffffc90000d67d58 EFLAGS: 00000282
RAX: 6b5ce6e3891f9800 RBX: ffff888016e98000 RCX: 6b5ce6e3891f9800
RDX: dffffc0000000000 RSI: ffffffff8a2b2780 RDI: ffffffff8a79f780
RBP: ffffc90000d67e80 R08: ffff888016e98007 R09: 1ffff11002dd3000
R10: dffffc0000000000 R11: ffffed1002dd3001 R12: 1ffff11002dd3000
R13: dffffc0000000000 R14: 0000000000000001 R15: 1ffff920001acfb4
 cpuidle_idle_call kernel/sched/idle.c:194 [inline]
 do_idle+0x21f/0x580 kernel/sched/idle.c:306
 cpu_startup_entry+0x14/0x20 kernel/sched/idle.c:403
 start_secondary+0x330/0x430 arch/x86/kernel/smpboot.c:281
 secondary_startup_64_no_verify+0xb1/0xbb
 </TASK>
----------------
Code disassembly (best guess):
   0:	7d 91                	jge    0xffffff93
   2:	9f                   	lahf
   3:	f7 48 c7 c7 d3 3d c5 	testl  $0xc53dd3c7,-0x39(%rax)
   a:	89 e8                	mov    %ebp,%eax
   c:	11 ab f6 ff fb e8    	adc    %ebp,-0x1704000a(%rbx)
  12:	eb ba                	jmp    0xffffffce
  14:	f6 ff                	idiv   %bh
  16:	bf ff ff ff ff       	mov    $0xffffffff,%edi
  1b:	89 c6                	mov    %eax,%esi
  1d:	5b                   	pop    %rbx
  1e:	e9 8e cd 8f f7       	jmp    0xf78fcdb1
  23:	e8 49 0d ba f7       	call   0xf7ba0d71
  28:	fb                   	sti
  29:	5b                   	pop    %rbx
* 2a:	c3                   	ret <-- trapping instruction
  2b:	66 0f 1f 44 00 00    	nopw   0x0(%rax,%rax,1)
  31:	41 57                	push   %r15
  33:	41 56                	push   %r14
  35:	53                   	push   %rbx
  36:	49 be 00 00 00 00 00 	movabs $0xdffffc0000000000,%r14
  3d:	fc ff df