------------[ cut here ]------------ WARNING: CPU: 1 PID: 4664 at net/mac80211/tx.c:4851 __ieee80211_beacon_update_cntdwn net/mac80211/tx.c:4851 [inline] WARNING: CPU: 1 PID: 4664 at net/mac80211/tx.c:4851 __ieee80211_beacon_get+0x12ec/0x19dc net/mac80211/tx.c:5075 Modules linked in: CPU: 1 PID: 4664 Comm: syz.2.123 Not tainted 5.15.185-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 pstate: 40400005 (nZcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : __ieee80211_beacon_update_cntdwn net/mac80211/tx.c:4851 [inline] pc : __ieee80211_beacon_get+0x12ec/0x19dc net/mac80211/tx.c:5075 lr : __ieee80211_beacon_update_cntdwn net/mac80211/tx.c:4851 [inline] lr : __ieee80211_beacon_get+0x12ec/0x19dc net/mac80211/tx.c:5075 sp : ffff800008017800 x29: ffff800008017a10 x28: dfff800000000000 x27: ffff800008017880 x26: ffff0000eb738dc0 x25: ffff700001002f10 x24: ffff0000d4f20c80 x23: ffff800008017970 x22: ffff800008017a70 x21: 0000000000000000 x20: ffff0000dc4f1a00 x19: ffff0000d4f22298 x18: 0000000000000101 x17: 0000000000000000 x16: ffff8000082bdf08 x15: 0000000000000007 x14: 0000000000ff0100 x13: ffffffffffffffff x12: 0000000000ff0100 x11: 0000000000000101 x10: 0000000000000000 x9 : ffff800010b6cfb0 x8 : ffff0000c1550000 x7 : ffff800010b75f2c x6 : 0000000000000000 x5 : 0000000000000000 x4 : 0000000000000000 x3 : 0000000000000002 x2 : 0000000000000008 x1 : 0000000000000000 x0 : 0000000000000000 Call trace: __ieee80211_beacon_update_cntdwn net/mac80211/tx.c:4851 [inline] __ieee80211_beacon_get+0x12ec/0x19dc net/mac80211/tx.c:5075 ieee80211_beacon_get_tim+0x5c/0x790 net/mac80211/tx.c:5194 ieee80211_beacon_get include/net/mac80211.h:4981 [inline] mac80211_hwsim_beacon_tx+0x10c/0x7ac drivers/net/wireless/mac80211_hwsim.c:1812 __iterate_interfaces+0x204/0x484 net/mac80211/util.c:793 ieee80211_iterate_active_interfaces_atomic+0xd4/0x180 net/mac80211/util.c:829 mac80211_hwsim_beacon+0x90/0x174 drivers/net/wireless/mac80211_hwsim.c:1865 __run_hrtimer kernel/time/hrtimer.c:1690 [inline] __hrtimer_run_queues+0x428/0xb6c kernel/time/hrtimer.c:1754 hrtimer_run_softirq+0x160/0x400 kernel/time/hrtimer.c:1771 handle_softirqs+0x344/0xbf0 kernel/softirq.c:576 __do_softirq kernel/softirq.c:610 [inline] do_softirq_own_stack include/asm-generic/softirq_stack.h:10 [inline] invoke_softirq kernel/softirq.c:457 [inline] __irq_exit_rcu+0x240/0x440 kernel/softirq.c:659 irq_exit+0x14/0x88 kernel/softirq.c:683 handle_domain_irq+0x14c/0x1fc kernel/irq/irqdesc.c:711 gic_handle_irq+0x78/0x1c8 drivers/irqchip/irq-gic-v3.c:765 call_on_irq_stack+0x24/0x4c arch/arm64/kernel/entry.S:899 do_interrupt_handler+0x6c/0x88 arch/arm64/kernel/entry-common.c:267 el1_interrupt+0x30/0x58 arch/arm64/kernel/entry-common.c:454 el1h_64_irq_handler+0x18/0x24 arch/arm64/kernel/entry-common.c:470 el1h_64_irq+0x78/0x7c arch/arm64/kernel/entry.S:522 check_kcov_mode kernel/kcov.c:172 [inline] write_comp_data kernel/kcov.c:227 [inline] __sanitizer_cov_trace_const_cmp4+0x74/0xc8 kernel/kcov.c:293 walk_stackframe+0x5c/0xa8 arch/arm64/kernel/stacktrace.c:146 return_address+0xd0/0x144 arch/arm64/kernel/return_address.c:46 get_lock_parent_ip include/linux/ftrace.h:859 [inline] preempt_latency_start kernel/sched/core.c:5471 [inline] preempt_count_add+0x13c/0x3bc kernel/sched/core.c:5496 __raw_spin_lock include/linux/spinlock_api_smp.h:141 [inline] _raw_spin_lock+0x24/0x10c kernel/locking/spinlock.c:154 spin_lock include/linux/spinlock.h:363 [inline] unix_dgram_sendmsg+0x77c/0x1188 net/unix/af_unix.c:1836 sock_sendmsg_nosec net/socket.c:704 [inline] __sock_sendmsg net/socket.c:716 [inline] ____sys_sendmsg+0x61c/0x920 net/socket.c:2436 ___sys_sendmsg+0x1d0/0x240 net/socket.c:2490 __sys_sendmmsg+0x218/0x5f0 net/socket.c:2576 __do_sys_sendmmsg net/socket.c:2605 [inline] __se_sys_sendmmsg net/socket.c:2602 [inline] __arm64_sys_sendmmsg+0xa0/0xbc net/socket.c:2602 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x58/0x14c arch/arm64/kernel/syscall.c:181 el0_svc+0x78/0x1e0 arch/arm64/kernel/entry-common.c:608 el0t_64_sync_handler+0xcc/0xe4 arch/arm64/kernel/entry-common.c:626 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584 irq event stamp: 66639 hardirqs last enabled at (66638): [] __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:160 [inline] hardirqs last enabled at (66638): [] _raw_spin_unlock_irqrestore+0xa8/0x14c kernel/locking/spinlock.c:194 hardirqs last disabled at (66639): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:396 softirqs last enabled at (59790): [] softirq_handle_end kernel/softirq.c:419 [inline] softirqs last enabled at (59790): [] handle_softirqs+0xa4c/0xbf0 kernel/softirq.c:604 softirqs last disabled at (66469): [] __do_softirq kernel/softirq.c:610 [inline] softirqs last disabled at (66469): [] do_softirq_own_stack include/asm-generic/softirq_stack.h:10 [inline] softirqs last disabled at (66469): [] invoke_softirq kernel/softirq.c:457 [inline] softirqs last disabled at (66469): [] __irq_exit_rcu+0x240/0x440 kernel/softirq.c:659 ---[ end trace 5825ae628c5a66e3 ]---