------------[ cut here ]------------
WARNING: CPU: 0 PID: 4793 at net/mac80211/tx.c:4859 __ieee80211_beacon_update_cntdwn net/mac80211/tx.c:4859 [inline]
WARNING: CPU: 0 PID: 4793 at net/mac80211/tx.c:4859 __ieee80211_beacon_get+0x172c/0x1f80 net/mac80211/tx.c:5083
Modules linked in:
CPU: 0 PID: 4793 Comm: syz.0.110 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 51 6c 3a f8 0f 0b 4c 8b 74 24 08 e9 36 fe ff ff e8 40 6c 3a f8 0f 0b e9 3c ef ff ff e8 34 6c 3a f8 <0f> 0b e9 b8 f2 ff ff e8 68 ef 6b 00 44 89 e1 80 e1 07 80 c1 03 38
RSP: 0018:ffffc900000078c0 EFLAGS: 00010246
RAX: ffffffff893d5e5c RBX: ffff8880586dcc80 RCX: ffff8880283e0000
RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc90000007ae8 R08: ffff8880283e0000 R09: 0000000000000003
R10: 0000000000000007 R11: 0000000000000100 R12: ffff888021ea7c00
R13: dffffc0000000000 R14: 0000000000000000 R15: 1ffff92000000f28
FS:  00007f441484a6c0(0000) GS:ffff8880b9000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000200000053030 CR3: 0000000058703000 CR4: 00000000003506f0
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:__import_iovec+0x37/0x490 lib/iov_iter.c:1945
Code: 48 4c 89 4c 24 08 4d 89 c5 89 cd 89 d3 49 89 f6 89 7c 24 1c 49 bc 00 00 00 00 00 fc ff df e8 30 11 9e fd 89 d8 48 89 44 24 10 <41> 89 ef 4c 89 e8 48 c1 e8 03 42 80 3c 20 00 49 89 c4 74 08 4c 89
RSP: 0018:ffffc90003dcf9d8 EFLAGS: 00000293
RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffff8880283e0000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000008 R08: ffffc90003dcfc00 R09: ffffc90003dcfd50
R10: fffff520007b9f67 R11: 1ffff920007b9f60 R12: dffffc0000000000
R13: ffffc90003dcfc00 R14: 0000000000000000 R15: 0000000000000000
 import_iovec+0x6f/0xa0 lib/iov_iter.c:2010
 copy_msghdr_from_user net/socket.c:2374 [inline]
 recvmsg_copy_msghdr net/socket.c:2621 [inline]
 ___sys_recvmsg+0x420/0x4f0 net/socket.c:2693
 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: 0033:0x7f44151fbfc9
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:00007f441484a038 EFLAGS: 00000246 ORIG_RAX: 000000000000012b
RAX: ffffffffffffffda RBX: 00007f4415453090 RCX: 00007f44151fbfc9
RDX: 0000000000010106 RSI: 00002000000000c0 RDI: 0000000000000003
RBP: 00007f441527ef91 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000002 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f4415453128 R14: 00007f4415453090 R15: 00007ffe6a2ef768
 </TASK>
----------------
Code disassembly (best guess):
   0:	48                   	rex.W
   1:	4c 89 4c 24 08       	mov    %r9,0x8(%rsp)
   6:	4d 89 c5             	mov    %r8,%r13
   9:	89 cd                	mov    %ecx,%ebp
   b:	89 d3                	mov    %edx,%ebx
   d:	49 89 f6             	mov    %rsi,%r14
  10:	89 7c 24 1c          	mov    %edi,0x1c(%rsp)
  14:	49 bc 00 00 00 00 00 	movabs $0xdffffc0000000000,%r12
  1b:	fc ff df
  1e:	e8 30 11 9e fd       	call   0xfd9e1153
  23:	89 d8                	mov    %ebx,%eax
  25:	48 89 44 24 10       	mov    %rax,0x10(%rsp)
* 2a:	41 89 ef             	mov    %ebp,%r15d <-- trapping instruction
  2d:	4c 89 e8             	mov    %r13,%rax
  30:	48 c1 e8 03          	shr    $0x3,%rax
  34:	42 80 3c 20 00       	cmpb   $0x0,(%rax,%r12,1)
  39:	49 89 c4             	mov    %rax,%r12
  3c:	74 08                	je     0x46
  3e:	4c                   	rex.WR
  3f:	89                   	.byte 0x89