------------[ cut here ]------------
WARNING: CPU: 1 PID: 19550 at net/mac80211/tx.c:4944 __ieee80211_beacon_update_cntdwn net/mac80211/tx.c:4944 [inline]
WARNING: CPU: 1 PID: 19550 at net/mac80211/tx.c:4944 __ieee80211_beacon_get+0x1233/0x1600 net/mac80211/tx.c:5345
Modules linked in:
CPU: 1 PID: 19550 Comm: syz.1.4006 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:4944 [inline]
RIP: 0010:__ieee80211_beacon_get+0x1233/0x1600 net/mac80211/tx.c:5345
Code: 24 4c 89 e7 e8 ae 73 0b f8 45 31 f6 4c 8b bc 24 a0 00 00 00 e9 7a fe ff ff e8 c9 dc d2 f7 0f 0b e9 f6 f7 ff ff e8 bd dc d2 f7 <0f> 0b e9 48 fb ff ff e8 b1 dc d2 f7 48 c7 c7 70 c2 fa 8d 4c 89 e6
RSP: 0018:ffffc900001e0a10 EFLAGS: 00010246
RAX: ffffffff89af95b3 RBX: ffffffff89af83b6 RCX: ffff888057801dc0
RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: ffff888057801dc0 R09: 0000000000000003
R10: 0000000000000007 R11: 0000000000000100 R12: ffff888026d56258
R13: dffffc0000000000 R14: ffff888026d56790 R15: ffff888055f82824
FS:  00007f7f571d56c0(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000020000010b030 CR3: 000000001cfc1000 CR4: 00000000003506e0
DR0: ffffffffffffffff DR1: 00000000000001f8 DR2: 0000000000000083
DR3: ffffffffefffff15 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <IRQ>
 ieee80211_beacon_get_tim+0x63/0x4e0 net/mac80211/tx.c:5472
 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:1747 [inline]
 __hrtimer_run_queues+0x560/0xd70 kernel/time/hrtimer.c:1811
 hrtimer_run_softirq+0x183/0x2a0 kernel/time/hrtimer.c:1828
 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:__unix_dgram_recvmsg+0x51f/0xdc0 net/unix/af_unix.c:-1
Code: 00 0f 84 cf 00 00 00 49 8d 5f 18 48 89 d8 48 c1 e8 03 48 b9 00 00 00 00 00 fc ff df 80 3c 08 00 74 08 48 89 df e8 91 82 eb f8 <41> be 18 05 00 00 4c 03 33 4c 89 f0 48 c1 e8 03 48 b9 00 00 00 00
RSP: 0018:ffffc90003757740 EFLAGS: 00000246
RAX: 1ffff11004796193 RBX: ffff888023cb0c98 RCX: dffffc0000000000
RDX: dffffc0000000000 RSI: ffffffff8a8c1220 RDI: ffffc90003757d20
RBP: ffffc900037578d0 R08: ffffffff90af32ef R09: 1ffffffff215e65d
R10: dffffc0000000000 R11: fffffbfff215e65e R12: 1ffff920006eaef8
R13: 1ffff920006eafa4 R14: ffffc90003757860 R15: ffff888023cb0c80
 ____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: 0033:0x7f7f58f9aeb9
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:00007f7f571d5028 EFLAGS: 00000246 ORIG_RAX: 000000000000012b
RAX: ffffffffffffffda RBX: 00007f7f59216090 RCX: 00007f7f58f9aeb9
RDX: 0000000000010106 RSI: 00002000000000c0 RDI: 0000000000000003
RBP: 00007f7f59008c1f R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000002 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f7f59216128 R14: 00007f7f59216090 R15: 00007fff82849b08
 </TASK>
----------------
Code disassembly (best guess), 1 bytes skipped:
   0:	0f 84 cf 00 00 00    	je     0xd5
   6:	49 8d 5f 18          	lea    0x18(%r15),%rbx
   a:	48 89 d8             	mov    %rbx,%rax
   d:	48 c1 e8 03          	shr    $0x3,%rax
  11:	48 b9 00 00 00 00 00 	movabs $0xdffffc0000000000,%rcx
  18:	fc ff df
  1b:	80 3c 08 00          	cmpb   $0x0,(%rax,%rcx,1)
  1f:	74 08                	je     0x29
  21:	48 89 df             	mov    %rbx,%rdi
  24:	e8 91 82 eb f8       	call   0xf8eb82ba
* 29:	41 be 18 05 00 00    	mov    $0x518,%r14d <-- trapping instruction
  2f:	4c 03 33             	add    (%rbx),%r14
  32:	4c 89 f0             	mov    %r14,%rax
  35:	48 c1 e8 03          	shr    $0x3,%rax
  39:	48                   	rex.W
  3a:	b9 00 00 00 00       	mov    $0x0,%ecx