------------[ cut here ]------------
WARNING: CPU: 1 PID: 26059 at net/mac80211/tx.c:5031 __ieee80211_beacon_update_cntdwn net/mac80211/tx.c:5031 [inline]
WARNING: CPU: 1 PID: 26059 at net/mac80211/tx.c:5031 __ieee80211_beacon_get+0x1233/0x1600 net/mac80211/tx.c:5442
Modules linked in:
CPU: 1 PID: 26059 Comm: syz.9.5596 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: ffff888077a03c00
RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: ffff888077a03c00 R09: 0000000000000003
R10: 0000000000000007 R11: 0000000000000100 R12: ffff88805802a3c0
R13: dffffc0000000000 R14: ffff88805802a8b0 R15: ffff888023d3ec24
FS:  00007f81122526c0(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffc2523bf28 CR3: 000000002dd08000 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:apparmor_socket_sock_rcv_skb+0x0/0xf0 security/apparmor/lsm.c:1127
Code: 89 fb e8 c3 3f 9c fd 48 c7 c7 a0 8a 16 8b be 20 00 00 00 48 89 da 5b e9 3e 2b 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 <f3> 0f 1e fa 55 41 57 41 56 53 49 89 f6 48 89 fb 49 bf 00 00 00 00
RSP: 0018:ffffc900037675e8 EFLAGS: 00000246
RAX: 1ffffffff194e9a3 RBX: ffff888075f99500 RCX: 0000000000080000
RDX: ffffc90012e5b000 RSI: ffff888075f99500 RDI: ffff88802cd3e800
RBP: ffffc90003767730 R08: ffff888077a03c07 R09: 1ffff1100ef40780
R10: dffffc0000000000 R11: ffffed100ef40781 R12: ffffffff8ca74d18
R13: dffffc0000000000 R14: ffff88802cd3e800 R15: ffffffff8ca74d00
 security_sock_rcv_skb+0x6b/0xa0 security/security.c:4380
 sk_filter_trim_cap+0x165/0x900 net/core/filter.c:144
 sk_filter include/linux/filter.h:888 [inline]
 unix_dgram_sendmsg+0x942/0x16d0 net/unix/af_unix.c:2035
 sock_sendmsg_nosec net/socket.c:730 [inline]
 __sock_sendmsg net/socket.c:745 [inline]
 ____sys_sendmsg+0x5ba/0x960 net/socket.c:2594
 ___sys_sendmsg+0x2a6/0x360 net/socket.c:2648
 __sys_sendmmsg+0x2ca/0x510 net/socket.c:2734
 __do_sys_sendmmsg net/socket.c:2763 [inline]
 __se_sys_sendmmsg net/socket.c:2760 [inline]
 __x64_sys_sendmmsg+0xa0/0xb0 net/socket.c:2760
 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: 0033:0x7f811139bf79
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:00007f8112252028 EFLAGS: 00000246 ORIG_RAX: 0000000000000133
RAX: ffffffffffffffda RBX: 00007f8111615fa0 RCX: 00007f811139bf79
RDX: 0000000000000651 RSI: 0000200000000000 RDI: 0000000000000005
RBP: 00007f81114327e0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f8111616038 R14: 00007f8111615fa0 R15: 00007fffb54ba458
 </TASK>
----------------
Code disassembly (best guess):
   0:	89 fb                	mov    %edi,%ebx
   2:	e8 c3 3f 9c fd       	call   0xfd9c3fca
   7:	48 c7 c7 a0 8a 16 8b 	mov    $0xffffffff8b168aa0,%rdi
   e:	be 20 00 00 00       	mov    $0x20,%esi
  13:	48 89 da             	mov    %rbx,%rdx
  16:	5b                   	pop    %rbx
  17:	e9 3e 2b 00 00       	jmp    0x2b5a
  1c:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  23:	00 00 00
  26:	0f 1f 40 00          	nopl   0x0(%rax)
* 2a:	f3 0f 1e fa          	endbr64 <-- trapping instruction
  2e:	55                   	push   %rbp
  2f:	41 57                	push   %r15
  31:	41 56                	push   %r14
  33:	53                   	push   %rbx
  34:	49 89 f6             	mov    %rsi,%r14
  37:	48 89 fb             	mov    %rdi,%rbx
  3a:	49                   	rex.WB
  3b:	bf 00 00 00 00       	mov    $0x0,%edi