------------[ cut here ]------------ WARNING: CPU: 1 PID: 5430 at net/mac80211/tx.c:4859 __ieee80211_beacon_update_cntdwn net/mac80211/tx.c:4859 [inline] WARNING: CPU: 1 PID: 5430 at net/mac80211/tx.c:4859 __ieee80211_beacon_get+0x172c/0x1f80 net/mac80211/tx.c:5083 Modules linked in: CPU: 1 PID: 5430 Comm: kworker/1:15 Not tainted syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025 Workqueue: mld mld_ifc_work 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 f1 c2 41 f8 0f 0b 4c 8b 74 24 08 e9 36 fe ff ff e8 e0 c2 41 f8 0f 0b e9 3c ef ff ff e8 d4 c2 41 f8 <0f> 0b e9 b8 f2 ff ff e8 f8 dd 6b 00 44 89 e1 80 e1 07 80 c1 03 38 RSP: 0018:ffffc90000dd0980 EFLAGS: 00010246 RAX: ffffffff8936093c RBX: ffff88801e6c0c80 RCX: ffff88802b9fd940 RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000000 RBP: ffffc90000dd0ba8 R08: ffff88802b9fd940 R09: 0000000000000003 R10: 0000000000000007 R11: 0000000000000100 R12: ffff88806045ae00 R13: dffffc0000000000 R14: 0000000000000000 R15: 1ffff920001ba140 FS: 0000000000000000(0000) GS:ffff8880b9100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f538a15beb8 CR3: 0000000065228000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: 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+0x53d/0xc40 kernel/time/hrtimer.c:1749 hrtimer_run_softirq+0x176/0x240 kernel/time/hrtimer.c:1766 handle_softirqs+0x328/0x820 kernel/softirq.c:576 do_softirq+0x13b/0x200 kernel/softirq.c:477 __local_bh_enable_ip+0x174/0x1b0 kernel/softirq.c:401 rcu_read_unlock_bh include/linux/rcupdate.h:810 [inline] ip6_finish_output2+0x110b/0x1500 net/ipv6/ip6_output.c:131 dst_output include/net/dst.h:452 [inline] NF_HOOK+0x15f/0x430 include/linux/netfilter.h:302 mld_sendpack+0x713/0xc30 net/ipv6/mcast.c:1825 mld_send_cr net/ipv6/mcast.c:2126 [inline] mld_ifc_work+0x836/0xb40 net/ipv6/mcast.c:2658 process_one_work+0x863/0x1000 kernel/workqueue.c:2310 worker_thread+0xaa8/0x12a0 kernel/workqueue.c:2457 kthread+0x436/0x520 kernel/kthread.c:334 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:287