------------[ cut here ]------------
WARNING: CPU: 1 PID: 5824 at net/mac80211/tx.c:4859 __ieee80211_beacon_update_cntdwn net/mac80211/tx.c:4859 [inline]
WARNING: CPU: 1 PID: 5824 at net/mac80211/tx.c:4859 __ieee80211_beacon_get+0x179f/0x2000 net/mac80211/tx.c:5083
Modules linked in:
CPU: 1 PID: 5824 Comm: syz.7.290 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
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 6d 14 2a f8 0f 0b e9 03 ef ff ff e8 61 14 2a f8 <0f> 0b e9 76 f2 ff ff e8 65 a9 6d 00 89 d9 80 e1 07 80 c1 03 38 c1
RSP: 0000:ffffc90000dd08e0 EFLAGS: 00010246
RAX: ffffffff894f202f RBX: ffff888077182268 RCX: ffff888058d65940
RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc90000dd0b08 R08: ffff888058d65940 R09: 0000000000000003
R10: 0000000000000007 R11: 0000000000000100 R12: ffff8880626ffc00
R13: dffffc0000000000 R14: 0000000000000000 R15: 1ffff920001ba12c
FS:  00005555857e8500(0000) GS:ffff8880b9100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000110c42380d CR3: 000000002acec000 CR4: 00000000003526e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000001800
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+0x4f2/0xb70 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:exit_to_user_mode_loop+0x40/0x130 kernel/entry/common.c:168
Code: fb eb 1d e8 32 75 55 08 65 48 8b 05 3a 0b 9b 7e 4c 8b 30 41 f7 c6 0e 30 02 00 0f 84 ed 00 00 00 e8 b5 fb 17 00 fb 41 f6 c6 08 <74> 05 e8 79 a7 5d 08 41 f7 c6 00 10 00 00 74 08 48 89 df e8 b8 6a
RSP: 0000:ffffc9000305ff10 EFLAGS: 00000202
RAX: 137590b6a7e50700 RBX: ffffc9000305ff58 RCX: 137590b6a7e50700
RDX: dffffc0000000000 RSI: ffffffff8a2b2800 RDI: ffffffff8a79fe00
RBP: 0000000000000000 R08: ffffffff8d89f02f R09: 1ffffffff1b13e05
R10: dffffc0000000000 R11: fffffbfff1b13e06 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000008 R15: ffff888058d65940
 exit_to_user_mode_prepare+0xee/0x180 kernel/entry/common.c:214
 irqentry_exit_to_user_mode+0x5/0x30 kernel/entry/common.c:320
 asm_sysvec_reschedule_ipi+0x16/0x20 arch/x86/include/asm/idtentry.h:681
RIP: 0033:0x7f614dd45284
Code: 48 0f 7e ca 48 39 c2 73 65 48 39 f0 0f 82 2a 01 00 00 48 39 f2 72 65 66 0f c6 c0 01 0f 11 45 00 4c 89 e6 eb 09 90 48 8b 4b 08 <48> 83 c3 08 48 39 d1 72 f3 48 8d 46 f8 48 8b 76 f8 48 39 f2 73 13
RSP: 002b:00007fff31ab5d10 EFLAGS: 00000293
RAX: 00007f614dccec98 RBX: 00007f614d916758 RCX: ffffffff83e0eda7
RDX: ffffffff87efa62e RSI: 00007f614dccec98 RDI: 00007f614dad7000
RBP: 00007f614d8d7008 R08: 00007f614e0d8000 R09: 00007f614e0ee038
R10: 0000000000000001 R11: 0000000000000008 R12: 00007f614dcd7000
R13: 0000000000000023 R14: 000000000007ffff R15: 0000000000000001
 </TASK>
----------------
Code disassembly (best guess):
   0:	fb                   	sti
   1:	eb 1d                	jmp    0x20
   3:	e8 32 75 55 08       	call   0x855753a
   8:	65 48 8b 05 3a 0b 9b 	mov    %gs:0x7e9b0b3a(%rip),%rax        # 0x7e9b0b4a
   f:	7e
  10:	4c 8b 30             	mov    (%rax),%r14
  13:	41 f7 c6 0e 30 02 00 	test   $0x2300e,%r14d
  1a:	0f 84 ed 00 00 00    	je     0x10d
  20:	e8 b5 fb 17 00       	call   0x17fbda
  25:	fb                   	sti
  26:	41 f6 c6 08          	test   $0x8,%r14b
* 2a:	74 05                	je     0x31 <-- trapping instruction
  2c:	e8 79 a7 5d 08       	call   0x85da7aa
  31:	41 f7 c6 00 10 00 00 	test   $0x1000,%r14d
  38:	74 08                	je     0x42
  3a:	48 89 df             	mov    %rbx,%rdi
  3d:	e8                   	.byte 0xe8
  3e:	b8                   	.byte 0xb8
  3f:	6a                   	.byte 0x6a