------------[ cut here ]------------
WARNING: CPU: 1 PID: 10644 at net/mac80211/tx.c:5031 __ieee80211_beacon_update_cntdwn net/mac80211/tx.c:5031 [inline]
WARNING: CPU: 1 PID: 10644 at net/mac80211/tx.c:5031 __ieee80211_beacon_get+0x1233/0x1600 net/mac80211/tx.c:5442
Modules linked in:
CPU: 1 PID: 10644 Comm: syz.9.580 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
RIP: 0010:__ieee80211_beacon_update_cntdwn net/mac80211/tx.c:5031 [inline]
RIP: 0010:__ieee80211_beacon_get+0x1233/0x1600 net/mac80211/tx.c:5442
Code: 24 4c 89 e7 e8 0e 88 d4 f7 45 31 f6 4c 8b bc 24 a0 00 00 00 e9 7a fe ff ff e8 19 65 97 f7 0f 0b e9 f6 f7 ff ff e8 0d 65 97 f7 <0f> 0b e9 48 fb ff ff e8 01 65 97 f7 48 c7 c7 a0 09 24 8e 4c 89 e6
RSP: 0018:ffffc900001f0a18 EFLAGS: 00010246
RAX: ffffffff89ee2a93 RBX: ffffffff89ee1896 RCX: ffff888018b61e00
RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: ffff888018b61e00 R09: 0000000000000003
R10: 0000000000000007 R11: 0000000000000100 R12: ffff88807c6e23c0
R13: dffffc0000000000 R14: ffff88807c6e28b0 R15: ffff888024c1bc24
FS:  00007f6d908b16c0(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fe02a94c200 CR3: 000000006c702000 CR4: 00000000003506e0
Call Trace:
 <IRQ>
 ieee80211_beacon_get_tim+0xb8/0x560 net/mac80211/tx.c:5569
 ieee80211_beacon_get include/net/mac80211.h:5440 [inline]
 mac80211_hwsim_beacon_tx+0x3c7/0x780 drivers/net/wireless/virtual/mac80211_hwsim.c:2265
 __iterate_interfaces+0x243/0x500 net/mac80211/util.c:766
 ieee80211_iterate_active_interfaces_atomic+0xdb/0x180 net/mac80211/util.c:802
 mac80211_hwsim_beacon+0xbb/0x1b0 drivers/net/wireless/virtual/mac80211_hwsim.c:2295
 __run_hrtimer kernel/time/hrtimer.c:1755 [inline]
 __hrtimer_run_queues+0x51e/0xc40 kernel/time/hrtimer.c:1819
 hrtimer_run_softirq+0x187/0x2b0 kernel/time/hrtimer.c:1836
 handle_softirqs+0x280/0x820 kernel/softirq.c:578
 __do_softirq kernel/softirq.c:612 [inline]
 invoke_softirq kernel/softirq.c:452 [inline]
 __irq_exit_rcu+0xc7/0x190 kernel/softirq.c:661
 irq_exit_rcu+0x9/0x20 kernel/softirq.c:673
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1088 [inline]
 sysvec_apic_timer_interrupt+0xa4/0xc0 arch/x86/kernel/apic/apic.c:1088
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:687
RIP: 0010:finish_wait+0x43/0x1d0 kernel/sched/wait.c:400
Code: bd 00 00 00 00 00 fc ff df 4c 8d 35 00 00 00 00 65 4c 8b 3d cf 67 9f 7e 49 8d bf 68 17 00 00 48 89 f8 48 c1 e8 03 80 3c 28 00 <74> 05 e8 36 84 78 00 4d 89 b7 68 17 00 00 49 83 c7 18 4c 89 f8 48
RSP: 0018:ffffc90005457618 EFLAGS: 00000246
RAX: 1ffff1100316c6ad RBX: ffffc900054576a0 RCX: 0000000000000000
RDX: 0000000000000001 RSI: ffffc900054576a0 RDI: ffff888018b63568
RBP: dffffc0000000000 R08: ffff8880258a8003 R09: 1ffff11004b15000
R10: dffffc0000000000 R11: ffffed1004b15001 R12: ffff8880241fb6c0
R13: ffff8880241fb6c0 R14: ffffffff81645229 R15: ffff888018b61e00
 unix_wait_for_peer+0x22f/0x2e0 net/unix/af_unix.c:1517
 unix_dgram_sendmsg+0xf04/0x1720 net/unix/af_unix.c:2105
 sock_sendmsg_nosec net/socket.c:730 [inline]
 __sock_sendmsg net/socket.c:745 [inline]
 ____sys_sendmsg+0x5bf/0x950 net/socket.c:2595
 ___sys_sendmsg+0x220/0x290 net/socket.c:2649
 __sys_sendmmsg+0x275/0x4a0 net/socket.c:2735
 __do_sys_sendmmsg net/socket.c:2764 [inline]
 __se_sys_sendmmsg net/socket.c:2761 [inline]
 __x64_sys_sendmmsg+0xa0/0xb0 net/socket.c:2761
 do_syscall_x64 arch/x86/entry/common.c:51 [inline]
 do_syscall_64+0x55/0xb0 arch/x86/entry/common.c:81
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f6d8f98ebe9
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:00007f6d908b1038 EFLAGS: 00000246 ORIG_RAX: 0000000000000133
RAX: ffffffffffffffda RBX: 00007f6d8fbc5fa0 RCX: 00007f6d8f98ebe9
RDX: 0400000000000041 RSI: 0000200000000000 RDI: 0000000000000005
RBP: 00007f6d8fa11e19 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f6d8fbc6038 R14: 00007f6d8fbc5fa0 R15: 00007fffd7a48fb8
 </TASK>
----------------
Code disassembly (best guess):
   0:	bd 00 00 00 00       	mov    $0x0,%ebp
   5:	00 fc                	add    %bh,%ah
   7:	ff                   	(bad)
   8:	df 4c 8d 35          	fisttps 0x35(%rbp,%rcx,4)
   c:	00 00                	add    %al,(%rax)
   e:	00 00                	add    %al,(%rax)
  10:	65 4c 8b 3d cf 67 9f 	mov    %gs:0x7e9f67cf(%rip),%r15        # 0x7e9f67e7
  17:	7e
  18:	49 8d bf 68 17 00 00 	lea    0x1768(%r15),%rdi
  1f:	48 89 f8             	mov    %rdi,%rax
  22:	48 c1 e8 03          	shr    $0x3,%rax
  26:	80 3c 28 00          	cmpb   $0x0,(%rax,%rbp,1)
* 2a:	74 05                	je     0x31 <-- trapping instruction
  2c:	e8 36 84 78 00       	call   0x788467
  31:	4d 89 b7 68 17 00 00 	mov    %r14,0x1768(%r15)
  38:	49 83 c7 18          	add    $0x18,%r15
  3c:	4c 89 f8             	mov    %r15,%rax
  3f:	48                   	rex.W