------------[ cut here ]------------
WARNING: CPU: 0 PID: 6208 at net/mac80211/tx.c:4859 __ieee80211_beacon_update_cntdwn net/mac80211/tx.c:4859 [inline]
WARNING: CPU: 0 PID: 6208 at net/mac80211/tx.c:4859 __ieee80211_beacon_get+0x179f/0x2000 net/mac80211/tx.c:5083
Modules linked in:
CPU: 0 PID: 6208 Comm: syz-executor 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: 0000:ffffc900000078e0 EFLAGS: 00010246
RAX: ffffffff894e5f9f RBX: ffff88805ebee298 RCX: ffff888028ee1dc0
RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc90000007b08 R08: ffff888028ee1dc0 R09: 0000000000000003
R10: 0000000000000007 R11: 0000000000000100 R12: ffff888078b9e600
R13: dffffc0000000000 R14: 0000000000000000 R15: 1ffff92000000f2c
FS:  0000555569f50500(0000) GS:ffff8880b9000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f3f1ed75180 CR3: 0000000074246000 CR4: 00000000003506f0
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:check_preemption_disabled+0x37/0x110 lib/smp_processor_id.c:55
Code: 04 25 28 00 00 00 48 89 44 24 08 65 8b 05 59 1c 46 76 65 8b 0d c2 76 46 76 f7 c1 ff ff ff 7f 74 1f 65 48 8b 0c 25 28 00 00 00 <48> 3b 4c 24 08 0f 85 c4 00 00 00 48 83 c4 10 5b 41 5e 41 5f 5d c3
RSP: 0000:ffffc90003377968 EFLAGS: 00000202
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 862624c31b17a000
RDX: 0000000000000000 RSI: ffffffff8a79f760 RDI: ffffffff8a79f720
RBP: ffffc90003377ad8 R08: ffffffff8d89d8af R09: 1ffffffff1b13b15
R10: dffffc0000000000 R11: fffffbfff1b13b16 R12: 1ffff9200066ef44
R13: dffffc0000000000 R14: 0000000000000000 R15: ffff88807c396900
 rcu_dynticks_curr_cpu_in_eqs kernel/rcu/tree.c:331 [inline]
 rcu_is_watching+0x11/0xa0 kernel/rcu/tree.c:1123
 trace_lock_release include/trace/events/lock.h:58 [inline]
 lock_release+0xb5/0x8a0 kernel/locking/lockdep.c:5634
 do_set_pte+0x3c9/0x530 mm/memory.c:4069
 filemap_map_pages+0xea1/0x13b0 mm/filemap.c:3344
 do_fault_around mm/memory.c:4243 [inline]
 do_read_fault mm/memory.c:4258 [inline]
 do_fault mm/memory.c:4392 [inline]
 handle_pte_fault mm/memory.c:4650 [inline]
 __handle_mm_fault mm/memory.c:4785 [inline]
 handle_mm_fault+0x25bc/0x4410 mm/memory.c:4883
 do_user_addr_fault+0x489/0xc80 arch/x86/mm/fault.c:1357
 handle_page_fault arch/x86/mm/fault.c:1445 [inline]
 exc_page_fault+0x60/0x100 arch/x86/mm/fault.c:1501
 asm_exc_page_fault+0x22/0x30 arch/x86/include/asm/idtentry.h:606
RIP: 0033:0x7f3f1ed75180
Code: 02 00 00 00 b8 01 00 00 00 48 8d 35 42 1a 12 00 0f 05 bf 7f 00 00 00 b8 e7 00 00 00 0f 05 e9 23 ff ff ff 0f 1f 80 00 00 00 00 <48> c7 c0 e8 ff ff ff 64 48 03 04 25 00 00 00 00 c3 66 2e 0f 1f 84
RSP: 002b:00007ffc54b4fc78 EFLAGS: 00010286
RAX: ffffffffffffffff RBX: 00007ffc54b4fc80 RCX: 0000000000000000
RDX: ffffffffffffffff RSI: 0000000000000000 RDI: 00000000000000c8
RBP: 00007ffc54b500bc R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000077
R13: 00000000000927c0 R14: 0000000000020ddd R15: 00007ffc54b50110
 </TASK>
----------------
Code disassembly (best guess):
   0:	04 25                	add    $0x25,%al
   2:	28 00                	sub    %al,(%rax)
   4:	00 00                	add    %al,(%rax)
   6:	48 89 44 24 08       	mov    %rax,0x8(%rsp)
   b:	65 8b 05 59 1c 46 76 	mov    %gs:0x76461c59(%rip),%eax        # 0x76461c6b
  12:	65 8b 0d c2 76 46 76 	mov    %gs:0x764676c2(%rip),%ecx        # 0x764676db
  19:	f7 c1 ff ff ff 7f    	test   $0x7fffffff,%ecx
  1f:	74 1f                	je     0x40
  21:	65 48 8b 0c 25 28 00 	mov    %gs:0x28,%rcx
  28:	00 00
* 2a:	48 3b 4c 24 08       	cmp    0x8(%rsp),%rcx <-- trapping instruction
  2f:	0f 85 c4 00 00 00    	jne    0xf9
  35:	48 83 c4 10          	add    $0x10,%rsp
  39:	5b                   	pop    %rbx
  3a:	41 5e                	pop    %r14
  3c:	41 5f                	pop    %r15
  3e:	5d                   	pop    %rbp
  3f:	c3                   	ret