------------[ cut here ]------------ WARNING: CPU: 1 PID: 19300 at net/mac80211/tx.c:4944 __ieee80211_beacon_update_cntdwn net/mac80211/tx.c:4944 [inline] WARNING: CPU: 1 PID: 19300 at net/mac80211/tx.c:4944 __ieee80211_beacon_get+0xf60/0x12bc net/mac80211/tx.c:5345 Modules linked in: CPU: 1 PID: 19300 Comm: syz.3.4215 Not tainted syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 pstate: 42400005 (nZcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) pc : __ieee80211_beacon_update_cntdwn net/mac80211/tx.c:4944 [inline] pc : __ieee80211_beacon_get+0xf60/0x12bc net/mac80211/tx.c:5345 lr : __ieee80211_beacon_update_cntdwn net/mac80211/tx.c:4944 [inline] lr : __ieee80211_beacon_get+0xf60/0x12bc net/mac80211/tx.c:5345 sp : ffff800008017a90 x29: ffff800008017ad0 x28: ffffffffffffe520 x27: 0000000000000001 x26: 0000000000000041 x25: ffff0000d5d5bc00 x24: 0000000000000000 x23: ffff0000f6200e80 x22: ffff800008017b3c x21: ffff0000f27ca228 x20: dfff800000000000 x19: ffff0000f27ca760 x18: 0000000000000000 x17: ffff80018a3dd000 x16: ffff8000082d7db8 x15: 0000000000000000 x14: 0000000000000007 x13: 0000000000ff0100 x12: 0000000000ff0100 x11: ff0080001131b664 x10: 0000000000000000 x9 : ffff80001131b664 x8 : ffff0000da87b780 x7 : 0000000000000000 x6 : 0000000000000000 x5 : 0000000000000000 x4 : 0000000000000000 x3 : ffff80001131a95c x2 : 000000000000000a x1 : 0000000000000000 x0 : 0000000000000000 Call trace: __ieee80211_beacon_update_cntdwn net/mac80211/tx.c:4944 [inline] __ieee80211_beacon_get+0xf60/0x12bc net/mac80211/tx.c:5345 ieee80211_beacon_get_tim+0x70/0x44c net/mac80211/tx.c:5472 ieee80211_beacon_get include/net/mac80211.h:5335 [inline] mac80211_hwsim_beacon_tx+0x1e8/0x914 drivers/net/wireless/mac80211_hwsim.c:2091 __iterate_interfaces+0x204/0x484 net/mac80211/util.c:788 ieee80211_iterate_active_interfaces_atomic+0xd4/0x180 net/mac80211/util.c:824 mac80211_hwsim_beacon+0xc8/0x1b8 drivers/net/wireless/mac80211_hwsim.c:2147 __run_hrtimer kernel/time/hrtimer.c:1747 [inline] __hrtimer_run_queues+0x438/0xc3c kernel/time/hrtimer.c:1811 hrtimer_run_softirq+0x160/0x400 kernel/time/hrtimer.c:1828 handle_softirqs+0x318/0xc60 kernel/softirq.c:596 __do_softirq+0x14/0x20 kernel/softirq.c:630 ____do_softirq+0x14/0x20 arch/arm64/kernel/irq.c:80 call_on_irq_stack+0x30/0x48 arch/arm64/kernel/entry.S:897 do_softirq_own_stack+0x20/0x2c arch/arm64/kernel/irq.c:85 invoke_softirq kernel/softirq.c:477 [inline] __irq_exit_rcu+0x23c/0x438 kernel/softirq.c:679 irq_exit_rcu+0x14/0x84 kernel/softirq.c:691 el0_interrupt+0x80/0x1b8 arch/arm64/kernel/entry-common.c:717 __el0_irq_handler_common+0x18/0x24 arch/arm64/kernel/entry-common.c:724 el0t_64_irq_handler+0x10/0x1c arch/arm64/kernel/entry-common.c:729 el0t_64_irq+0x18c/0x190 arch/arm64/kernel/entry.S:586 irq event stamp: 3709 hardirqs last enabled at (3708): [] __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:151 [inline] hardirqs last enabled at (3708): [] _raw_spin_unlock_irqrestore+0x48/0xac kernel/locking/spinlock.c:194 hardirqs last disabled at (3709): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (3700): [] local_bh_enable+0x10/0x34 include/linux/bottom_half.h:32 softirqs last disabled at (3705): [] __do_softirq+0x14/0x20 kernel/softirq.c:630 ---[ end trace 0000000000000000 ]---