------------[ cut here ]------------
WARNING: CPU: 1 PID: 5505 at net/mac80211/tx.c:4859 __ieee80211_beacon_update_cntdwn net/mac80211/tx.c:4859 [inline]
WARNING: CPU: 1 PID: 5505 at net/mac80211/tx.c:4859 __ieee80211_beacon_get+0x172c/0x1f80 net/mac80211/tx.c:5083
Modules linked in:
CPU: 1 PID: 5505 Comm: syz.1.294 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:ffffc90000dd08c0 EFLAGS: 00010246
RAX: ffffffff893d147c RBX: ffff88805e684c80 RCX: ffff888021860000
RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc90000dd0ae8 R08: ffff888021860000 R09: 0000000000000003
R10: 0000000000000007 R11: 0000000000000100 R12: ffff888078b80200
R13: dffffc0000000000 R14: 0000000000000000 R15: 1ffff920001ba128
FS:  00007f9ce6ab56c0(0000) GS:ffff8880b9100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffcde3e0b18 CR3: 000000006599c000 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: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:check_region_inline mm/kasan/generic.c:169 [inline]
RIP: 0010:kasan_check_range+0xd/0x290 mm/kasan/generic.c:189
Code: c3 0f 0b b8 ea ff ff ff c3 0f 0b b8 ea ff ff ff c3 00 00 cc cc 00 00 cc cc 00 00 cc cc b0 01 48 85 f6 0f 84 a4 01 00 00 41 57 <41> 56 53 49 89 f8 49 01 f0 0f 82 57 02 00 00 49 89 f8 49 c1 e8 2f
RSP: 0018:ffffc90003ecf6f8 EFLAGS: 00000202
RAX: ffffffff87cfa301 RBX: ffff88805c65c000 RCX: ffffffff87cfa405
RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff88805c65c0dc
RBP: ffffc90003ecf8f0 R08: dffffc0000000000 R09: ffffed100e2fac02
R10: ffffed100e2fac02 R11: 1ffff1100e2fac01 R12: dffffc0000000000
R13: ffffc90003ecfd40 R14: ffff88805c65c0dc R15: dffffc0000000000
 instrument_atomic_read include/linux/instrumented.h:71 [inline]
 atomic_read include/linux/atomic/atomic-instrumented.h:27 [inline]
 refcount_read include/linux/refcount.h:147 [inline]
 skb_unref include/linux/skbuff.h:1102 [inline]
 consume_skb+0x35/0x100 net/core/skbuff.c:910
 skb_free_datagram+0x25/0xe0 net/core/datagram.c:325
 __unix_dgram_recvmsg+0x9cc/0xd50 net/unix/af_unix.c:2395
 ____sys_recvmsg+0x291/0x580 net/socket.c:-1
 ___sys_recvmsg+0x1af/0x4f0 net/socket.c:2697
 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: 0033:0x7f9ce886ebe9
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:00007f9ce6ab5038 EFLAGS: 00000246 ORIG_RAX: 000000000000012b
RAX: ffffffffffffffda RBX: 00007f9ce8aa6090 RCX: 00007f9ce886ebe9
RDX: 0000000000010106 RSI: 00002000000000c0 RDI: 0000000000000003
RBP: 00007f9ce88f1e19 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000002 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f9ce8aa6128 R14: 00007f9ce8aa6090 R15: 00007fff3419fe58
 </TASK>
----------------
Code disassembly (best guess):
   0:	c3                   	ret
   1:	0f 0b                	ud2
   3:	b8 ea ff ff ff       	mov    $0xffffffea,%eax
   8:	c3                   	ret
   9:	0f 0b                	ud2
   b:	b8 ea ff ff ff       	mov    $0xffffffea,%eax
  10:	c3                   	ret
  11:	00 00                	add    %al,(%rax)
  13:	cc                   	int3
  14:	cc                   	int3
  15:	00 00                	add    %al,(%rax)
  17:	cc                   	int3
  18:	cc                   	int3
  19:	00 00                	add    %al,(%rax)
  1b:	cc                   	int3
  1c:	cc                   	int3
  1d:	b0 01                	mov    $0x1,%al
  1f:	48 85 f6             	test   %rsi,%rsi
  22:	0f 84 a4 01 00 00    	je     0x1cc
  28:	41 57                	push   %r15
* 2a:	41 56                	push   %r14 <-- trapping instruction
  2c:	53                   	push   %rbx
  2d:	49 89 f8             	mov    %rdi,%r8
  30:	49 01 f0             	add    %rsi,%r8
  33:	0f 82 57 02 00 00    	jb     0x290
  39:	49 89 f8             	mov    %rdi,%r8
  3c:	49 c1 e8 2f          	shr    $0x2f,%r8