------------[ cut here ]------------
WARNING: CPU: 0 PID: 4730 at net/mac80211/tx.c:4944 __ieee80211_beacon_update_cntdwn net/mac80211/tx.c:4944 [inline]
WARNING: CPU: 0 PID: 4730 at net/mac80211/tx.c:4944 __ieee80211_beacon_get+0x1233/0x1600 net/mac80211/tx.c:5345
Modules linked in:
CPU: 0 PID: 4730 Comm: syz.2.66 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
RIP: 0010:__ieee80211_beacon_update_cntdwn net/mac80211/tx.c:4944 [inline]
RIP: 0010:__ieee80211_beacon_get+0x1233/0x1600 net/mac80211/tx.c:5345
Code: 24 4c 89 e7 e8 9e d3 0a f8 45 31 f6 4c 8b bc 24 a0 00 00 00 e9 7a fe ff ff e8 39 3d d2 f7 0f 0b e9 f6 f7 ff ff e8 2d 3d d2 f7 <0f> 0b e9 48 fb ff ff e8 21 3d d2 f7 48 c7 c7 50 d6 fa 8d 4c 89 e6
RSP: 0018:ffffc90000007a30 EFLAGS: 00010246
RAX: ffffffff89b03583 RBX: ffffffff89b02386 RCX: ffff888054878000
RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: ffff888054878000 R09: 0000000000000003
R10: 0000000000000007 R11: 0000000000000100 R12: ffff88807e4ae228
R13: dffffc0000000000 R14: ffff88807e4ae760 R15: ffff88807c424824
FS:  00007f09331da6c0(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f09331b8ff8 CR3: 0000000027c73000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <IRQ>
 ieee80211_beacon_get_tim+0x63/0x4e0 net/mac80211/tx.c:5472
 ieee80211_beacon_get include/net/mac80211.h:5335 [inline]
 mac80211_hwsim_beacon_tx+0x21c/0xae0 drivers/net/wireless/mac80211_hwsim.c:2091
 __iterate_interfaces+0x243/0x500 net/mac80211/util.c:788
 ieee80211_iterate_active_interfaces_atomic+0xd7/0x170 net/mac80211/util.c:824
 mac80211_hwsim_beacon+0xb7/0x1b0 drivers/net/wireless/mac80211_hwsim.c:2147
 __run_hrtimer kernel/time/hrtimer.c:1747 [inline]
 __hrtimer_run_queues+0x54a/0xd50 kernel/time/hrtimer.c:1811
 hrtimer_run_softirq+0x183/0x2a0 kernel/time/hrtimer.c:1828
 handle_softirqs+0x2a1/0x930 kernel/softirq.c:596
 __do_softirq kernel/softirq.c:630 [inline]
 invoke_softirq kernel/softirq.c:470 [inline]
 __irq_exit_rcu+0x13b/0x230 kernel/softirq.c:679
 irq_exit_rcu+0x5/0x20 kernel/softirq.c:691
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1118 [inline]
 sysvec_apic_timer_interrupt+0xa0/0xc0 arch/x86/kernel/apic/apic.c:1118
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:691
RIP: 0010:check_region_inline mm/kasan/generic.c:169 [inline]
RIP: 0010:kasan_check_range+0x10/0x290 mm/kasan/generic.c:189
Code: 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 ac 01 00 00 55 41 57 41 56 <41> 54 53 49 89 f8 49 01 f0 0f 82 0e 02 00 00 49 89 f8 49 c1 e8 2f
RSP: 0018:ffffc9000c717900 EFLAGS: 00000202
RAX: 0000000000000001 RBX: 0000000000000000 RCX: ffffffff8164bff0
RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffffffff8e1fd768
RBP: ffffc9000c717a40 R08: dffffc0000000000 R09: 1ffffffff215ec4e
R10: dffffc0000000000 R11: fffffbfff215ec4f R12: ffffc9000c717be0
R13: dffffc0000000000 R14: 0000000000000000 R15: 1ffff920018e2f30
 instrument_atomic_read include/linux/instrumented.h:72 [inline]
 _test_bit include/asm-generic/bitops/instrumented-non-atomic.h:141 [inline]
 cpumask_test_cpu include/linux/cpumask.h:444 [inline]
 cpu_online include/linux/cpumask.h:1030 [inline]
 trace_lock_release include/trace/events/lock.h:69 [inline]
 lock_release+0xc0/0x920 kernel/locking/lockdep.c:5673
 _copy_from_user+0x27/0x170 lib/usercopy.c:14
 copy_from_user include/linux/uaccess.h:161 [inline]
 copy_msghdr_from_user net/socket.c:2448 [inline]
 recvmsg_copy_msghdr net/socket.c:2703 [inline]
 ___sys_recvmsg+0x172/0x590 net/socket.c:2775
 do_recvmmsg+0x393/0x870 net/socket.c:2873
 __sys_recvmmsg net/socket.c:2952 [inline]
 __do_sys_recvmmsg net/socket.c:2975 [inline]
 __se_sys_recvmmsg net/socket.c:2968 [inline]
 __x64_sys_recvmmsg+0x195/0x250 net/socket.c:2968
 do_syscall_x64 arch/x86/entry/common.c:46 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:76
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f093239c799
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:00007f09331da028 EFLAGS: 00000246 ORIG_RAX: 000000000000012b
RAX: ffffffffffffffda RBX: 00007f0932616090 RCX: 00007f093239c799
RDX: 0000000000010106 RSI: 00002000000000c0 RDI: 0000000000000004
RBP: 00007f0932432c99 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000002 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f0932616128 R14: 00007f0932616090 R15: 00007ffe38897b38
 </TASK>
----------------
Code disassembly (best guess):
   0:	b8 ea ff ff ff       	mov    $0xffffffea,%eax
   5:	c3                   	ret
   6:	0f 0b                	ud2
   8:	b8 ea ff ff ff       	mov    $0xffffffea,%eax
   d:	c3                   	ret
   e:	00 00                	add    %al,(%rax)
  10:	cc                   	int3
  11:	cc                   	int3
  12:	00 00                	add    %al,(%rax)
  14:	cc                   	int3
  15:	cc                   	int3
  16:	00 00                	add    %al,(%rax)
  18:	cc                   	int3
  19:	cc                   	int3
  1a:	b0 01                	mov    $0x1,%al
  1c:	48 85 f6             	test   %rsi,%rsi
  1f:	0f 84 ac 01 00 00    	je     0x1d1
  25:	55                   	push   %rbp
  26:	41 57                	push   %r15
  28:	41 56                	push   %r14
* 2a:	41 54                	push   %r12 <-- trapping instruction
  2c:	53                   	push   %rbx
  2d:	49 89 f8             	mov    %rdi,%r8
  30:	49 01 f0             	add    %rsi,%r8
  33:	0f 82 0e 02 00 00    	jb     0x247
  39:	49 89 f8             	mov    %rdi,%r8
  3c:	49 c1 e8 2f          	shr    $0x2f,%r8