------------[ cut here ]------------
WARNING: CPU: 1 PID: 10119 at net/mac80211/tx.c:5031 __ieee80211_beacon_update_cntdwn net/mac80211/tx.c:5031 [inline]
WARNING: CPU: 1 PID: 10119 at net/mac80211/tx.c:5031 __ieee80211_beacon_get+0x1233/0x1600 net/mac80211/tx.c:5442
Modules linked in:
CPU: 1 PID: 10119 Comm: syz.3.1347 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
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 de 52 c2 f7 45 31 f6 4c 8b bc 24 a0 00 00 00 e9 7a fe ff ff e8 39 99 84 f7 0f 0b e9 f6 f7 ff ff e8 2d 99 84 f7 <0f> 0b e9 48 fb ff ff e8 21 99 84 f7 48 c7 c7 e0 50 64 8e 4c 89 e6
RSP: 0018:ffffc900001f0a18 EFLAGS: 00010246
RAX: ffffffff8a027b83 RBX: ffffffff8a026986 RCX: ffff88802bae8000
RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: ffff88802bae8000 R09: 0000000000000003
R10: 0000000000000007 R11: 0000000000000100 R12: ffff88805d9f23c0
R13: dffffc0000000000 R14: ffff88805d9f28b0 R15: ffff88805e804c24
FS:  00007f9b0da346c0(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000110c3e2b22 CR3: 0000000075b44000 CR4: 00000000003506e0
Call Trace:
 <IRQ>
 ieee80211_beacon_get_tim+0xbf/0x580 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:1750 [inline]
 __hrtimer_run_queues+0x52a/0xc40 kernel/time/hrtimer.c:1814
 hrtimer_run_softirq+0x187/0x2b0 kernel/time/hrtimer.c:1831
 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+0xd3/0x190 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:__put_user_nocheck_4+0xe/0x10 arch/x86/lib/putuser.S:101
Code: 48 89 cb 48 c1 fb 3f 48 09 d9 0f 01 cb 89 01 31 c9 0f 01 ca c3 90 90 90 90 90 90 90 f3 0f 1e fa 0f 01 cb 89 01 31 c9 0f 01 ca <c3> 90 f3 0f 1e fa 48 89 cb 48 c1 fb 3f 48 09 d9 0f 01 cb 48 89 01
RSP: 0018:ffffc9001133f8d8 EFLAGS: 00000246
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
RDX: ffff88802bae8000 RSI: 0000000000000002 RDI: 00000000ffffffff
RBP: ffffc9001133fa70 R08: ffffc9001133f6a7 R09: 1ffff92002267ed4
R10: dffffc0000000000 R11: fffff52002267ed5 R12: 0000000000000002
R13: 0000000000000000 R14: 00000000000046e2 R15: 000020000011b940
 ____sys_recvmsg+0x3ba/0x5e0 net/socket.c:2826
 ___sys_recvmsg+0x216/0x590 net/socket.c:2855
 do_recvmmsg+0x39a/0x870 net/socket.c:2949
 __sys_recvmmsg net/socket.c:3028 [inline]
 __do_sys_recvmmsg net/socket.c:3051 [inline]
 __se_sys_recvmmsg net/socket.c:3044 [inline]
 __x64_sys_recvmmsg+0x199/0x250 net/socket.c:3044
 do_syscall_x64 arch/x86/entry/common.c:46 [inline]
 do_syscall_64+0x55/0xa0 arch/x86/entry/common.c:76
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f9b0cb9af79
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:00007f9b0da34028 EFLAGS: 00000246 ORIG_RAX: 000000000000012b
RAX: ffffffffffffffda RBX: 00007f9b0ce16090 RCX: 00007f9b0cb9af79
RDX: 0000000000010106 RSI: 00002000000000c0 RDI: 0000000000000003
RBP: 00007f9b0cc316e0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000002 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f9b0ce16128 R14: 00007f9b0ce16090 R15: 00007ffcd8eb42a8
 </TASK>
----------------
Code disassembly (best guess):
   0:	48 89 cb             	mov    %rcx,%rbx
   3:	48 c1 fb 3f          	sar    $0x3f,%rbx
   7:	48 09 d9             	or     %rbx,%rcx
   a:	0f 01 cb             	stac
   d:	89 01                	mov    %eax,(%rcx)
   f:	31 c9                	xor    %ecx,%ecx
  11:	0f 01 ca             	clac
  14:	c3                   	ret
  15:	90                   	nop
  16:	90                   	nop
  17:	90                   	nop
  18:	90                   	nop
  19:	90                   	nop
  1a:	90                   	nop
  1b:	90                   	nop
  1c:	f3 0f 1e fa          	endbr64
  20:	0f 01 cb             	stac
  23:	89 01                	mov    %eax,(%rcx)
  25:	31 c9                	xor    %ecx,%ecx
  27:	0f 01 ca             	clac
* 2a:	c3                   	ret <-- trapping instruction
  2b:	90                   	nop
  2c:	f3 0f 1e fa          	endbr64
  30:	48 89 cb             	mov    %rcx,%rbx
  33:	48 c1 fb 3f          	sar    $0x3f,%rbx
  37:	48 09 d9             	or     %rbx,%rcx
  3a:	0f 01 cb             	stac
  3d:	48 89 01             	mov    %rax,(%rcx)