------------[ cut here ]------------
WARNING: CPU: 0 PID: 7666 at net/mac80211/tx.c:4946 __ieee80211_beacon_update_cntdwn net/mac80211/tx.c:4946 [inline]
WARNING: CPU: 0 PID: 7666 at net/mac80211/tx.c:4946 __ieee80211_beacon_get+0x1233/0x1600 net/mac80211/tx.c:5347
Modules linked in:
CPU: 0 PID: 7666 Comm: syz.1.685 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
RIP: 0010:__ieee80211_beacon_update_cntdwn net/mac80211/tx.c:4946 [inline]
RIP: 0010:__ieee80211_beacon_get+0x1233/0x1600 net/mac80211/tx.c:5347
Code: 24 4c 89 e7 e8 6e b6 08 f8 45 31 f6 4c 8b bc 24 a0 00 00 00 e9 7a fe ff ff e8 59 1a d0 f7 0f 0b e9 f6 f7 ff ff e8 4d 1a d0 f7 <0f> 0b e9 48 fb ff ff e8 41 1a d0 f7 48 c7 c7 b0 24 fb 8d 4c 89 e6
RSP: 0018:ffffc90000007a30 EFLAGS: 00010246
RAX: ffffffff89b26153 RBX: ffffffff89b24f56 RCX: ffff888027751e00
RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: ffff888027751e00 R09: 0000000000000003
R10: 0000000000000007 R11: 0000000000000100 R12: ffff888054b0a228
R13: dffffc0000000000 R14: ffff888054b0a760 R15: ffff888055a39424
FS:  00007fbedb9cc6c0(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 0000000055185000 CR4: 00000000003526f0
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:5474
 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:1751 [inline]
 __hrtimer_run_queues+0x54a/0xd50 kernel/time/hrtimer.c:1815
 hrtimer_run_softirq+0x183/0x2a0 kernel/time/hrtimer.c:1832
 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:__raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:152 [inline]
RIP: 0010:_raw_spin_unlock_irqrestore+0xbc/0x120 kernel/locking/spinlock.c:194
Code: c7 44 24 20 00 00 00 00 9c 8f 44 24 20 f7 44 24 20 00 02 00 00 41 c6 04 07 f8 75 4b f7 c3 00 02 00 00 74 01 fb bf 01 00 00 00 <e8> af 7f 1f f7 65 8b 05 80 ff c8 75 85 c0 74 3c 48 c7 04 24 0e 36
RSP: 0018:ffffc9001c5075c0 EFLAGS: 00000206
RAX: dffffc0000000004 RBX: 0000000000000a06 RCX: fc358976a7fa1c00
RDX: dffffc0000000000 RSI: ffffffff8a8c1aa0 RDI: 0000000000000001
RBP: ffffc9001c507658 R08: ffffffff90aff2ef R09: 1ffffffff215fe5d
R10: dffffc0000000000 R11: fffffbfff215fe5e R12: dffffc0000000000
R13: 1ffff1100f748046 R14: ffff88807ba401d0 R15: 1ffff920038a0eb8
 spin_unlock_irqrestore include/linux/spinlock.h:406 [inline]
 __skb_try_recv_datagram+0x179/0x4d0 net/core/datagram.c:265
 __unix_dgram_recvmsg+0x301/0xdc0 net/unix/af_unix.c:2451
 ____sys_recvmsg+0x2cb/0x5e0 net/socket.c:-1
 ___sys_recvmsg+0x212/0x590 net/socket.c:2779
 do_recvmmsg+0x393/0x870 net/socket.c:2873
 __sys_recvmmsg net/socket.c:2952 [inline]
 __do_sys_recvmmsg net/socket.c:2975 [inline]
 __se_sys_recvmmsg net/socket.c:2968 [inline]
 __x64_sys_recvmmsg+0x195/0x250 net/socket.c:2968
 do_syscall_x64 arch/x86/entry/common.c:46 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:76
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7fbedab9ce59
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 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 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fbedb9cc028 EFLAGS: 00000246 ORIG_RAX: 000000000000012b
RAX: ffffffffffffffda RBX: 00007fbedae16090 RCX: 00007fbedab9ce59
RDX: 0000000000010106 RSI: 00002000000000c0 RDI: 0000000000000004
RBP: 00007fbedac32d6f R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000002 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fbedae16128 R14: 00007fbedae16090 R15: 00007ffd0f2993a8
 </TASK>
----------------
Code disassembly (best guess):
   0:	c7 44 24 20 00 00 00 	movl   $0x0,0x20(%rsp)
   7:	00
   8:	9c                   	pushf
   9:	8f 44 24 20          	pop    0x20(%rsp)
   d:	f7 44 24 20 00 02 00 	testl  $0x200,0x20(%rsp)
  14:	00
  15:	41 c6 04 07 f8       	movb   $0xf8,(%r15,%rax,1)
  1a:	75 4b                	jne    0x67
  1c:	f7 c3 00 02 00 00    	test   $0x200,%ebx
  22:	74 01                	je     0x25
  24:	fb                   	sti
  25:	bf 01 00 00 00       	mov    $0x1,%edi
* 2a:	e8 af 7f 1f f7       	call   0xf71f7fde <-- trapping instruction
  2f:	65 8b 05 80 ff c8 75 	mov    %gs:0x75c8ff80(%rip),%eax        # 0x75c8ffb6
  36:	85 c0                	test   %eax,%eax
  38:	74 3c                	je     0x76
  3a:	48                   	rex.W
  3b:	c7                   	.byte 0xc7
  3c:	04 24                	add    $0x24,%al
  3e:	0e                   	(bad)
  3f:	36                   	ss