------------[ cut here ]------------
WARNING: CPU: 1 PID: 5377 at net/mac80211/tx.c:4859 __ieee80211_beacon_update_cntdwn net/mac80211/tx.c:4859 [inline]
WARNING: CPU: 1 PID: 5377 at net/mac80211/tx.c:4859 __ieee80211_beacon_get+0x172c/0x1f80 net/mac80211/tx.c:5083
Modules linked in:
CPU: 1 PID: 5377 Comm: syz.2.163 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+0x172c/0x1f80 net/mac80211/tx.c:5083
Code: f8 0f 0b e9 f1 fa ff ff e8 f1 c2 41 f8 0f 0b 4c 8b 74 24 08 e9 36 fe ff ff e8 e0 c2 41 f8 0f 0b e9 3c ef ff ff e8 d4 c2 41 f8 <0f> 0b e9 b8 f2 ff ff e8 f8 dd 6b 00 44 89 e1 80 e1 07 80 c1 03 38
RSP: 0018:ffffc90000dd08c0 EFLAGS: 00010246
RAX: ffffffff8936093c RBX: ffff88805f604c80 RCX: ffff88807dc78000
RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc90000dd0ae8 R08: ffff88807dc78000 R09: 0000000000000003
R10: 0000000000000007 R11: 0000000000000100 R12: ffff888028a0b000
R13: dffffc0000000000 R14: 0000000000000000 R15: 1ffff920001ba128
FS:  00007fbd9e4556c0(0000) GS:ffff8880b9100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000110c2f7cda CR3: 0000000066878000 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+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:__might_fault+0x1/0x110 mm/memory.c:5343
Code: 08 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 f8 f5 ca ff 48 89 df 31 f6 e8 7e 5d fe ff e9 df fe ff ff 66 0f 1f 84 00 00 00 00 00 55 <41> 57 41 56 41 54 53 89 f5 49 89 fe 49 bc 00 00 00 00 00 fc ff df
RSP: 0018:ffffc9000321fc90 EFLAGS: 00000246
RAX: ffffffff87c65d7c RBX: 0000000000000000 RCX: 0000000000080000
RDX: ffffc9000f3d4000 RSI: 0000000000000af7 RDI: ffffffff8afdf840
RBP: ffffc9000321fe50 R08: dffffc0000000000 R09: fffff52000643edd
R10: fffff52000643edd R11: 1ffff92000643edc R12: 00000000000047f4
R13: 000020000011fdc0 R14: 00002000000000c0 R15: dffffc0000000000
 do_recvmmsg+0x36d/0x7a0 net/socket.c:2807
 __sys_recvmmsg net/socket.c:2880 [inline]
 __do_sys_recvmmsg net/socket.c:2903 [inline]
 __se_sys_recvmmsg net/socket.c:2896 [inline]
 __x64_sys_recvmmsg+0x18d/0x240 net/socket.c:2896
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7fbda020f749
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:00007fbd9e455038 EFLAGS: 00000246 ORIG_RAX: 000000000000012b
RAX: ffffffffffffffda RBX: 00007fbda0466090 RCX: 00007fbda020f749
RDX: 0000000000010106 RSI: 00002000000000c0 RDI: 0000000000000006
RBP: 00007fbda0293f91 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000002 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fbda0466128 R14: 00007fbda0466090 R15: 00007fffe134d248
 </TASK>
----------------
Code disassembly (best guess):
   0:	08 5b 41             	or     %bl,0x41(%rbx)
   3:	5c                   	pop    %rsp
   4:	41 5d                	pop    %r13
   6:	41 5e                	pop    %r14
   8:	41 5f                	pop    %r15
   a:	5d                   	pop    %rbp
   b:	c3                   	ret
   c:	e8 f8 f5 ca ff       	call   0xffcaf609
  11:	48 89 df             	mov    %rbx,%rdi
  14:	31 f6                	xor    %esi,%esi
  16:	e8 7e 5d fe ff       	call   0xfffe5d99
  1b:	e9 df fe ff ff       	jmp    0xfffffeff
  20:	66 0f 1f 84 00 00 00 	nopw   0x0(%rax,%rax,1)
  27:	00 00
  29:	55                   	push   %rbp
* 2a:	41 57                	push   %r15 <-- trapping instruction
  2c:	41 56                	push   %r14
  2e:	41 54                	push   %r12
  30:	53                   	push   %rbx
  31:	89 f5                	mov    %esi,%ebp
  33:	49 89 fe             	mov    %rdi,%r14
  36:	49 bc 00 00 00 00 00 	movabs $0xdffffc0000000000,%r12
  3d:	fc ff df