------------[ cut here ]------------
WARNING: CPU: 1 PID: 4462 at net/mac80211/tx.c:4859 __ieee80211_beacon_update_cntdwn net/mac80211/tx.c:4859 [inline]
WARNING: CPU: 1 PID: 4462 at net/mac80211/tx.c:4859 __ieee80211_beacon_get+0x179f/0x2000 net/mac80211/tx.c:5083
Modules linked in:
CPU: 1 PID: 4462 Comm: kworker/u4:8 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
Workqueue: phy9 ieee80211_iface_work
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:ffffc90000dd08e0 EFLAGS: 00010246
RAX: ffffffff894e5f9f RBX: ffff8880681ee298 RCX: ffff888026bad940
RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc90000dd0b08 R08: ffff888026bad940 R09: 0000000000000003
R10: 0000000000000007 R11: 0000000000000100 R12: ffff88806213d000
R13: dffffc0000000000 R14: 0000000000000000 R15: 1ffff920001ba12c
FS:  0000000000000000(0000) GS:ffff8880b9100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2eb23ffc CR3: 000000002af0e000 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: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:check_kcov_mode kernel/kcov.c:174 [inline]
RIP: 0010:write_comp_data kernel/kcov.c:227 [inline]
RIP: 0010:__sanitizer_cov_trace_switch+0x80/0xe0 kernel/kcov.c:329
Code: 77 4e 8b 54 ce 10 65 44 8b 1d 64 4b 89 7e 41 81 e3 00 01 ff 00 74 13 41 81 fb 00 01 00 00 75 d9 41 83 b8 34 16 00 00 00 74 cf <45> 8b 98 10 16 00 00 41 83 fb 03 75 c2 4d 8b 98 18 16 00 00 45 8b
RSP: 0018:ffffc9000393f458 EFLAGS: 00000246
RAX: 000000000000002b RBX: 0000000000000003 RCX: 0000000000000001
RDX: ffffffff89504ef8 RSI: ffffffff8d6780f0 RDI: 0000000000000003
RBP: ffffc9000393f7c8 R08: ffff888026bad940 R09: 000000000000000e
R10: 000000000000003e R11: 0000000000000000 R12: 0000000000000003
R13: ffff8880627cc886 R14: 0000000000000003 R15: ffffc9000393f740
 _ieee802_11_parse_elems_crc+0x808/0x2c20 net/mac80211/util.c:1080
 ieee802_11_parse_elems_crc+0xc5e/0x10b0 net/mac80211/util.c:1498
 ieee802_11_parse_elems net/mac80211/ieee80211_i.h:2243 [inline]
 ieee80211_rx_mgmt_probe_beacon net/mac80211/ibss.c:1609 [inline]
 ieee80211_ibss_rx_queued_mgmt+0x370/0x2ab0 net/mac80211/ibss.c:1643
 ieee80211_iface_process_skb net/mac80211/iface.c:1459 [inline]
 ieee80211_iface_work+0x70e/0xc60 net/mac80211/iface.c:1513
 process_one_work+0x85f/0x1010 kernel/workqueue.c:2310
 worker_thread+0xaa6/0x1290 kernel/workqueue.c:2457
 kthread+0x436/0x520 kernel/kthread.c:334
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:287
 </TASK>
----------------
Code disassembly (best guess):
   0:	77 4e                	ja     0x50
   2:	8b 54 ce 10          	mov    0x10(%rsi,%rcx,8),%edx
   6:	65 44 8b 1d 64 4b 89 	mov    %gs:0x7e894b64(%rip),%r11d        # 0x7e894b72
   d:	7e
   e:	41 81 e3 00 01 ff 00 	and    $0xff0100,%r11d
  15:	74 13                	je     0x2a
  17:	41 81 fb 00 01 00 00 	cmp    $0x100,%r11d
  1e:	75 d9                	jne    0xfffffff9
  20:	41 83 b8 34 16 00 00 	cmpl   $0x0,0x1634(%r8)
  27:	00
  28:	74 cf                	je     0xfffffff9
* 2a:	45 8b 98 10 16 00 00 	mov    0x1610(%r8),%r11d <-- trapping instruction
  31:	41 83 fb 03          	cmp    $0x3,%r11d
  35:	75 c2                	jne    0xfffffff9
  37:	4d 8b 98 18 16 00 00 	mov    0x1618(%r8),%r11
  3e:	45                   	rex.RB
  3f:	8b                   	.byte 0x8b