------------[ cut here ]------------
WARNING: CPU: 0 PID: 5477 at net/mac80211/tx.c:4859 __ieee80211_beacon_update_cntdwn net/mac80211/tx.c:4859 [inline]
WARNING: CPU: 0 PID: 5477 at net/mac80211/tx.c:4859 __ieee80211_beacon_get+0x179f/0x2000 net/mac80211/tx.c:5083
Modules linked in:
CPU: 0 PID: 5477 Comm: syz.2.294 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
RIP: 0010:__ieee80211_beacon_update_cntdwn net/mac80211/tx.c:4859 [inline]
RIP: 0010:__ieee80211_beacon_get+0x179f/0x2000 net/mac80211/tx.c:5083
Code: 2a f8 0f 0b 4f 89 64 2f 04 4f 89 64 2f 0c 43 c6 44 2f 14 f8 e9 19 fe ff ff e8 0d c0 2a f8 0f 0b e9 03 ef ff ff e8 01 c0 2a f8 <0f> 0b e9 76 f2 ff ff e8 15 89 6d 00 89 d9 80 e1 07 80 c1 03 38 c1
RSP: 0018:ffffc900000078e0 EFLAGS: 00010246
RAX: ffffffff894e5f9f RBX: ffff888023cb6298 RCX: ffff888029b78000
RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc90000007b08 R08: ffff888029b78000 R09: 0000000000000003
R10: 0000000000000007 R11: 0000000000000100 R12: ffff88802b4ac600
R13: dffffc0000000000 R14: 0000000000000000 R15: 1ffff92000000f2c
FS:  00007fd961dbb6c0(0000) GS:ffff8880b9000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffdaad673e8 CR3: 0000000061492000 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+0x4eb/0xb70 kernel/time/hrtimer.c:1749
 hrtimer_run_softirq+0x176/0x240 kernel/time/hrtimer.c:1766
 handle_softirqs+0x339/0x830 kernel/softirq.c:576
 __do_softirq kernel/softirq.c:610 [inline]
 invoke_softirq kernel/softirq.c:450 [inline]
 __irq_exit_rcu+0x13b/0x230 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:__kasan_check_read+0x2/0x10 mm/kasan/shadow.c:31
Code: 41 5d 41 5e 41 5f 5d c3 48 c7 c7 1b c5 de 8b eb 0a 48 c7 c7 3b d8 c4 8b 48 89 de e8 88 1c f3 07 31 ed eb d7 00 00 cc cc 89 f6 <48> 8b 0c 24 31 d2 e9 43 ef ff ff 0f 1f 00 89 f6 48 8b 0c 24 ba 01
RSP: 0018:ffffc90003a4f538 EFLAGS: 00000246
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000080000
RDX: ffffc9000f204000 RSI: 0000000000000008 RDI: ffffffff8d89d8a8
RBP: ffffc90003a4f650 R08: ffff88802c84a85f R09: 1ffff1100590950b
R10: dffffc0000000000 R11: ffffed100590950c R12: 1ffff92000749eb4
R13: dffffc0000000000 R14: ffff88807acb3d38 R15: ffffc90003a4f6c0
 instrument_atomic_read include/linux/instrumented.h:71 [inline]
 test_bit include/asm-generic/bitops/instrumented-non-atomic.h:134 [inline]
 cpumask_test_cpu include/linux/cpumask.h:344 [inline]
 cpu_online include/linux/cpumask.h:895 [inline]
 trace_lock_release include/trace/events/lock.h:58 [inline]
 lock_release+0xa4/0x8a0 kernel/locking/lockdep.c:5634
 __mutex_unlock_slowpath+0xc8/0x6c0 kernel/locking/mutex.c:851
 __unix_dgram_recvmsg+0xa0b/0xd90 net/unix/af_unix.c:2396
 ____sys_recvmsg+0x2cd/0x5e0 net/socket.c:-1
 ___sys_recvmsg+0x21a/0x5c0 net/socket.c:2706
 do_recvmmsg+0x382/0x850 net/socket.c:2800
 __sys_recvmmsg net/socket.c:2879 [inline]
 __do_sys_recvmmsg net/socket.c:2902 [inline]
 __se_sys_recvmmsg net/socket.c:2895 [inline]
 __x64_sys_recvmmsg+0x195/0x250 net/socket.c:2895
 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: 0033:0x7fd963b80cb9
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:00007fd961dbb028 EFLAGS: 00000246 ORIG_RAX: 000000000000012b
RAX: ffffffffffffffda RBX: 00007fd963dfc090 RCX: 00007fd963b80cb9
RDX: 0000000000010106 RSI: 00002000000000c0 RDI: 0000000000000003
RBP: 00007fd963beebf7 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000002 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fd963dfc128 R14: 00007fd963dfc090 R15: 00007fff08511548
 </TASK>
----------------
Code disassembly (best guess):
   0:	41 5d                	pop    %r13
   2:	41 5e                	pop    %r14
   4:	41 5f                	pop    %r15
   6:	5d                   	pop    %rbp
   7:	c3                   	ret
   8:	48 c7 c7 1b c5 de 8b 	mov    $0xffffffff8bdec51b,%rdi
   f:	eb 0a                	jmp    0x1b
  11:	48 c7 c7 3b d8 c4 8b 	mov    $0xffffffff8bc4d83b,%rdi
  18:	48 89 de             	mov    %rbx,%rsi
  1b:	e8 88 1c f3 07       	call   0x7f31ca8
  20:	31 ed                	xor    %ebp,%ebp
  22:	eb d7                	jmp    0xfffffffb
  24:	00 00                	add    %al,(%rax)
  26:	cc                   	int3
  27:	cc                   	int3
  28:	89 f6                	mov    %esi,%esi
* 2a:	48 8b 0c 24          	mov    (%rsp),%rcx <-- trapping instruction
  2e:	31 d2                	xor    %edx,%edx
  30:	e9 43 ef ff ff       	jmp    0xffffef78
  35:	0f 1f 00             	nopl   (%rax)
  38:	89 f6                	mov    %esi,%esi
  3a:	48 8b 0c 24          	mov    (%rsp),%rcx
  3e:	ba                   	.byte 0xba
  3f:	01                   	.byte 0x1