------------[ cut here ]------------
WARNING: CPU: 0 PID: 5038 at net/mac80211/tx.c:4859 __ieee80211_beacon_update_cntdwn net/mac80211/tx.c:4859 [inline]
WARNING: CPU: 0 PID: 5038 at net/mac80211/tx.c:4859 __ieee80211_beacon_get+0x172c/0x1f80 net/mac80211/tx.c:5083
Modules linked in:
CPU: 0 PID: 5038 Comm: syz.1.199 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:4859 [inline]
RIP: 0010:__ieee80211_beacon_get+0x172c/0x1f80 net/mac80211/tx.c:5083
Code: f8 0f 0b e9 f1 fa ff ff e8 51 b6 3a f8 0f 0b 4c 8b 74 24 08 e9 36 fe ff ff e8 40 b6 3a f8 0f 0b e9 3c ef ff ff e8 34 b6 3a f8 <0f> 0b e9 b8 f2 ff ff e8 48 d9 6b 00 44 89 e1 80 e1 07 80 c1 03 38
RSP: 0018:ffffc900000078c0 EFLAGS: 00010246
RAX: ffffffff893d147c RBX: ffff888060834c80 RCX: ffff88802269bb80
RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc90000007ae8 R08: ffff88802269bb80 R09: 0000000000000003
R10: 0000000000000007 R11: 0000000000000100 R12: ffff888063633e00
R13: dffffc0000000000 R14: 0000000000000000 R15: 1ffff92000000f28
FS:  00007f6e2fd246c0(0000) GS:ffff8880b9000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f6e2fd03d58 CR3: 000000005cac2000 CR4: 00000000003526f0
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:1690 [inline]
 __hrtimer_run_queues+0x53d/0xc40 kernel/time/hrtimer.c:1754
 hrtimer_run_softirq+0x176/0x240 kernel/time/hrtimer.c:1771
 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:__copy_msghdr_from_user net/socket.c:2321 [inline]
RIP: 0010:copy_msghdr_from_user net/socket.c:2369 [inline]
RIP: 0010:recvmsg_copy_msghdr net/socket.c:2621 [inline]
RIP: 0010:___sys_recvmsg+0x1c8/0x4f0 net/socket.c:2693
Code: 24 20 44 8b 44 24 1c 44 8b 4c 24 2c e8 81 f6 ff ff 89 c3 48 8b bc 24 60 01 00 00 e8 02 1b ee f9 e9 c2 01 00 00 49 8d 7c 24 40 <48> 89 f8 48 c1 e8 03 42 0f b6 04 28 84 c0 0f 85 57 02 00 00 41 80
RSP: 0018:ffffc90003657aa0 EFLAGS: 00000246
RAX: ffffffff87cd7f96 RBX: 0000000000000000 RCX: ffff88802269bb80
RDX: 0000000000000002 RSI: 0000000000000000 RDI: ffffc90003657d80
RBP: ffffc90003657c90 R08: 0000000000000000 R09: fffff520006caf67
R10: fffff520006caf67 R11: 1ffff920006caf60 R12: ffffc90003657d40
R13: dffffc0000000000 R14: ffffc90003657c00 R15: 1ffff920006caf5c
 do_recvmmsg+0x344/0x7a0 net/socket.c:2791
 __sys_recvmmsg net/socket.c:2870 [inline]
 __do_sys_recvmmsg net/socket.c:2893 [inline]
 __se_sys_recvmmsg net/socket.c:2886 [inline]
 __x64_sys_recvmmsg+0x18d/0x240 net/socket.c:2886
 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: 0033:0x7f6e31addbe9
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:00007f6e2fd24038 EFLAGS: 00000246 ORIG_RAX: 000000000000012b
RAX: ffffffffffffffda RBX: 00007f6e31d05090 RCX: 00007f6e31addbe9
RDX: 0000000000010106 RSI: 00002000000000c0 RDI: 0000000000000004
RBP: 00007f6e31b60e19 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000002 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f6e31d05128 R14: 00007f6e31d05090 R15: 00007fffb85a7068
 </TASK>
----------------
Code disassembly (best guess):
   0:	24 20                	and    $0x20,%al
   2:	44 8b 44 24 1c       	mov    0x1c(%rsp),%r8d
   7:	44 8b 4c 24 2c       	mov    0x2c(%rsp),%r9d
   c:	e8 81 f6 ff ff       	call   0xfffff692
  11:	89 c3                	mov    %eax,%ebx
  13:	48 8b bc 24 60 01 00 	mov    0x160(%rsp),%rdi
  1a:	00
  1b:	e8 02 1b ee f9       	call   0xf9ee1b22
  20:	e9 c2 01 00 00       	jmp    0x1e7
  25:	49 8d 7c 24 40       	lea    0x40(%r12),%rdi
* 2a:	48 89 f8             	mov    %rdi,%rax <-- trapping instruction
  2d:	48 c1 e8 03          	shr    $0x3,%rax
  31:	42 0f b6 04 28       	movzbl (%rax,%r13,1),%eax
  36:	84 c0                	test   %al,%al
  38:	0f 85 57 02 00 00    	jne    0x295
  3e:	41                   	rex.B
  3f:	80                   	.byte 0x80