------------[ cut here ]------------
WARNING: CPU: 0 PID: 6601 at net/mac80211/tx.c:4859 __ieee80211_beacon_update_cntdwn net/mac80211/tx.c:4859 [inline]
WARNING: CPU: 0 PID: 6601 at net/mac80211/tx.c:4859 __ieee80211_beacon_get+0x172c/0x1f80 net/mac80211/tx.c:5083
Modules linked in:
CPU: 0 PID: 6601 Comm: syz.0.696 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025
RIP: 0010:__ieee80211_beacon_update_cntdwn net/mac80211/tx.c:4859 [inline]
RIP: 0010:__ieee80211_beacon_get+0x172c/0x1f80 net/mac80211/tx.c:5083
Code: f8 0f 0b e9 f1 fa ff ff e8 81 83 3a f8 0f 0b 4c 8b 74 24 08 e9 36 fe ff ff e8 70 83 3a f8 0f 0b e9 3c ef ff ff e8 64 83 3a f8 <0f> 0b e9 b8 f2 ff ff e8 88 e7 6b 00 44 89 e1 80 e1 07 80 c1 03 38
RSP: 0018:ffffc900000078c0 EFLAGS: 00010246
RAX: ffffffff893d46ec RBX: ffff88807c380c80 RCX: ffff88801d3f3b80
RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc90000007ae8 R08: ffff88801d3f3b80 R09: 0000000000000003
R10: 0000000000000007 R11: 0000000000000100 R12: ffff8880245aa000
R13: dffffc0000000000 R14: 0000000000000000 R15: 1ffff92000000f28
FS:  00007f5957efd6c0(0000) GS:ffff8880b9000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b32123ffc CR3: 00000000758e8000 CR4: 00000000003526f0
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+0x53d/0xc40 kernel/time/hrtimer.c:1749
 hrtimer_run_softirq+0x176/0x240 kernel/time/hrtimer.c:1766
 handle_softirqs+0x328/0x820 kernel/softirq.c:576
 __do_softirq kernel/softirq.c:610 [inline]
 invoke_softirq kernel/softirq.c:450 [inline]
 __irq_exit_rcu+0x12f/0x220 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 22 0e 43 08 65 48 8b 05 4a 3f 9c 7e 4c 8b 30 41 f7 c6 0e 30 02 00 0f 84 ed 00 00 00 e8 a5 b7 17 00 fb 41 f6 c6 08 <74> 05 e8 39 42 4b 08 41 f7 c6 00 10 00 00 74 08 48 89 df e8 88 d8
RSP: 0018:ffffc90002ebfed0 EFLAGS: 00000246
RAX: a9db25389e8b1100 RBX: ffffc90002ebff58 RCX: a9db25389e8b1100
RDX: dffffc0000000000 RSI: ffffffff8a0b1820 RDI: ffffffff8a59a4c0
RBP: ffffc90002ebff48 R08: ffff88801d3f3b80 R09: 0000000000000003
R10: 0000000000000002 R11: 0000000000000002 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000004 R15: ffff88801d3f3b80
 exit_to_user_mode_prepare+0xee/0x180 kernel/entry/common.c:214
 __syscall_exit_to_user_mode_work kernel/entry/common.c:296 [inline]
 syscall_exit_to_user_mode+0x16/0x40 kernel/entry/common.c:307
 do_syscall_64+0x58/0xa0 arch/x86/entry/common.c:86
 entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7f5959c95ec9
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f5957efd0e8 EFLAGS: 00000246
RAX: fffffffffffffffc RBX: 00007f5959eecfa8 RCX: 00007f5959c95ec9
RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007f5959eecfa8
RBP: 00007f5959eecfa0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f5959eed038 R14: 00007ffef2880cd0 R15: 00007ffef2880db8
 </TASK>
----------------
Code disassembly (best guess):
   0:	fb                   	sti
   1:	eb 1d                	jmp    0x20
   3:	e8 22 0e 43 08       	call   0x8430e2a
   8:	65 48 8b 05 4a 3f 9c 	mov    %gs:0x7e9c3f4a(%rip),%rax        # 0x7e9c3f5a
   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 a5 b7 17 00       	call   0x17b7ca
  25:	fb                   	sti
  26:	41 f6 c6 08          	test   $0x8,%r14b
* 2a:	74 05                	je     0x31 <-- trapping instruction
  2c:	e8 39 42 4b 08       	call   0x84b426a
  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:	88 d8                	mov    %bl,%al