------------[ cut here ]------------
WARNING: CPU: 1 PID: 0 at net/mac80211/tx.c:4944 __ieee80211_beacon_update_cntdwn net/mac80211/tx.c:4944 [inline]
WARNING: CPU: 1 PID: 0 at net/mac80211/tx.c:4944 __ieee80211_beacon_get+0x1233/0x1600 net/mac80211/tx.c:5345
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 02/12/2026
RIP: 0010:__ieee80211_beacon_update_cntdwn net/mac80211/tx.c:4944 [inline]
RIP: 0010:__ieee80211_beacon_get+0x1233/0x1600 net/mac80211/tx.c:5345
Code: 24 4c 89 e7 e8 9e d3 0a f8 45 31 f6 4c 8b bc 24 a0 00 00 00 e9 7a fe ff ff e8 39 3d d2 f7 0f 0b e9 f6 f7 ff ff e8 2d 3d d2 f7 <0f> 0b e9 48 fb ff ff e8 21 3d d2 f7 48 c7 c7 50 d6 fa 8d 4c 89 e6
RSP: 0018:ffffc900001e0a30 EFLAGS: 00010246
RAX: ffffffff89b03583 RBX: ffffffff89b02386 RCX: ffff888017731dc0
RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: ffff888017731dc0 R09: 0000000000000003
R10: 0000000000000007 R11: 0000000000000100 R12: ffff88807c6b2228
R13: dffffc0000000000 R14: ffff88807c6b2760 R15: ffff888029878424
FS:  0000000000000000(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000200000012000 CR3: 000000007450a000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <IRQ>
 ieee80211_beacon_get_tim+0x63/0x4e0 net/mac80211/tx.c:5472
 ieee80211_beacon_get include/net/mac80211.h:5335 [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:1747 [inline]
 __hrtimer_run_queues+0x54a/0xd50 kernel/time/hrtimer.c:1811
 hrtimer_run_softirq+0x183/0x2a0 kernel/time/hrtimer.c:1828
 handle_softirqs+0x2a1/0x930 kernel/softirq.c:596
 __do_softirq kernel/softirq.c:630 [inline]
 invoke_softirq kernel/softirq.c:470 [inline]
 __irq_exit_rcu+0x13b/0x230 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:default_idle_call+0xb4/0xc0 kernel/sched/idle.c:126
Code: 04 f6 ff e8 6e 12 f6 ff 48 89 df e8 c6 02 f6 ff fb e8 40 17 f6 ff bf ff ff ff ff 89 c6 5b e9 d3 a8 27 f7 e8 be d8 51 f7 fb 5b <c3> 66 2e 0f 1f 84 00 00 00 00 00 90 41 57 41 56 53 e8 16 17 f6 ff
RSP: 0018:ffffc90000177df8 EFLAGS: 00000286
RAX: 342c1fdf51f11a00 RBX: 1ffff11002ee63b8 RCX: 342c1fdf51f11a00
RDX: dffffc0000000000 RSI: ffffffff8a8c1220 RDI: ffffffff8adf0f60
RBP: ffffc90000177f20 R08: ffff888017731dc7 R09: 1ffff11002ee63b8
R10: dffffc0000000000 R11: ffffed1002ee63b9 R12: 1ffff9200002efc8
R13: dffffc0000000000 R14: ffff888017731dc0 R15: 0000000000000001
 cpuidle_idle_call kernel/sched/idle.c:191 [inline]
 do_idle+0x20d/0x5a0 kernel/sched/idle.c:303
 cpu_startup_entry+0x3f/0x60 kernel/sched/idle.c:401
 start_secondary+0xe4/0xf0 arch/x86/kernel/smpboot.c:281
 secondary_startup_64_no_verify+0xcf/0xdb
 </TASK>
----------------
Code disassembly (best guess):
   0:	04 f6                	add    $0xf6,%al
   2:	ff                   	ljmp   (bad)
   3:	e8 6e 12 f6 ff       	call   0xfff61276
   8:	48 89 df             	mov    %rbx,%rdi
   b:	e8 c6 02 f6 ff       	call   0xfff602d6
  10:	fb                   	sti
  11:	e8 40 17 f6 ff       	call   0xfff61756
  16:	bf ff ff ff ff       	mov    $0xffffffff,%edi
  1b:	89 c6                	mov    %eax,%esi
  1d:	5b                   	pop    %rbx
  1e:	e9 d3 a8 27 f7       	jmp    0xf727a8f6
  23:	e8 be d8 51 f7       	call   0xf751d8e6
  28:	fb                   	sti
  29:	5b                   	pop    %rbx
* 2a:	c3                   	ret <-- trapping instruction
  2b:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  32:	00 00 00
  35:	90                   	nop
  36:	41 57                	push   %r15
  38:	41 56                	push   %r14
  3a:	53                   	push   %rbx
  3b:	e8 16 17 f6 ff       	call   0xfff61756