------------[ cut here ]------------
WARNING: CPU: 1 PID: 12315 at net/mac80211/tx.c:4859 __ieee80211_beacon_update_cntdwn net/mac80211/tx.c:4859 [inline]
WARNING: CPU: 1 PID: 12315 at net/mac80211/tx.c:4859 __ieee80211_beacon_get+0x172c/0x1f80 net/mac80211/tx.c:5083
Modules linked in:
CPU: 1 PID: 12315 Comm: syz.6.1743 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025
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 01 51 3a f8 0f 0b 4c 8b 74 24 08 e9 36 fe ff ff e8 f0 50 3a f8 0f 0b e9 3c ef ff ff e8 e4 50 3a f8 <0f> 0b e9 b8 f2 ff ff e8 98 f2 6b 00 44 89 e1 80 e1 07 80 c1 03 38
RSP: 0018:ffffc90000dd08c0 EFLAGS: 00010246
RAX: ffffffff893d7b2c RBX: ffff88805e044c80 RCX: ffff888058688000
RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc90000dd0ae8 R08: ffff888058688000 R09: 0000000000000003
R10: 0000000000000007 R11: 0000000000000100 R12: ffff88805fe90a00
R13: dffffc0000000000 R14: 0000000000000000 R15: 1ffff920001ba128
FS:  00007f2bd27e96c0(0000) GS:ffff8880b9100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f5981bb3000 CR3: 0000000076f4e000 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:__sanitizer_cov_trace_const_cmp4+0x0/0x80 kernel/kcov.c:294
Code: 28 4d 39 ca 77 22 89 ff 89 f6 4a c7 44 02 08 03 00 00 00 4a 89 7c 02 10 4a 89 74 02 18 4a 89 44 02 20 48 ff c1 48 89 0a c3 90 <48> 8b 04 24 65 48 8b 0d 44 a0 8a 7e 65 8b 15 45 a0 8a 7e 81 e2 00
RSP: 0018:ffffc90002f6f688 EFLAGS: 00000246
RAX: ffffffff87d327d1 RBX: 0000000000000000 RCX: 0000000000080000
RDX: ffffc90011ef5000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: 0000000000000000 R09: ffffffff87d32b30
R10: fffffbfff1ad33a6 R11: 1ffffffff1ad33a5 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
 __skb_datagram_iter+0x656/0x740 net/core/datagram.c:487
 skb_copy_datagram_iter+0xad/0x1f0 net/core/datagram.c:541
 skb_copy_datagram_msg include/linux/skbuff.h:3773 [inline]
 __unix_dgram_recvmsg+0x671/0xd50 net/unix/af_unix.c:2354
 ____sys_recvmsg+0x291/0x580 net/socket.c:-1
 ___sys_recvmsg+0x1af/0x4f0 net/socket.c:2707
 do_recvmmsg+0x344/0x7a0 net/socket.c:2801
 __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: 0033:0x7f2bd45a36c9
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:00007f2bd27e9038 EFLAGS: 00000246 ORIG_RAX: 000000000000012b
RAX: ffffffffffffffda RBX: 00007f2bd47fa090 RCX: 00007f2bd45a36c9
RDX: 0000000000010106 RSI: 00002000000000c0 RDI: 0000000000000003
RBP: 00007f2bd4625f91 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000002 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f2bd47fa128 R14: 00007f2bd47fa090 R15: 00007fff2a2ce698
 </TASK>
----------------
Code disassembly (best guess):
   0:	28 4d 39             	sub    %cl,0x39(%rbp)
   3:	ca 77 22             	lret   $0x2277
   6:	89 ff                	mov    %edi,%edi
   8:	89 f6                	mov    %esi,%esi
   a:	4a c7 44 02 08 03 00 	movq   $0x3,0x8(%rdx,%r8,1)
  11:	00 00
  13:	4a 89 7c 02 10       	mov    %rdi,0x10(%rdx,%r8,1)
  18:	4a 89 74 02 18       	mov    %rsi,0x18(%rdx,%r8,1)
  1d:	4a 89 44 02 20       	mov    %rax,0x20(%rdx,%r8,1)
  22:	48 ff c1             	inc    %rcx
  25:	48 89 0a             	mov    %rcx,(%rdx)
  28:	c3                   	ret
  29:	90                   	nop
* 2a:	48 8b 04 24          	mov    (%rsp),%rax <-- trapping instruction
  2e:	65 48 8b 0d 44 a0 8a 	mov    %gs:0x7e8aa044(%rip),%rcx        # 0x7e8aa07a
  35:	7e
  36:	65 8b 15 45 a0 8a 7e 	mov    %gs:0x7e8aa045(%rip),%edx        # 0x7e8aa082
  3d:	81                   	.byte 0x81
  3e:	e2 00                	loop   0x40