================================================================== BUG: KCSAN: data-race in wg_packet_purge_staged_packets / wg_packet_purge_staged_packets read-write to 0xffff88811b478168 of 8 bytes by interrupt on cpu 1: wg_packet_purge_staged_packets+0x5e/0x140 drivers/net/wireguard/send.c:336 wg_expired_retransmit_handshake+0x4f/0x150 drivers/net/wireguard/timers.c:55 call_timer_fn+0x2e/0x240 kernel/time/timer.c:1474 expire_timers+0x116/0x240 kernel/time/timer.c:1519 __run_timers+0x350/0x400 kernel/time/timer.c:1790 run_timer_softirq+0x2e/0x60 kernel/time/timer.c:1803 __do_softirq+0x158/0x2e3 kernel/softirq.c:571 __irq_exit_rcu kernel/softirq.c:650 [inline] irq_exit_rcu+0x41/0x70 kernel/softirq.c:662 sysvec_apic_timer_interrupt+0x8d/0xb0 arch/x86/kernel/apic/apic.c:1106 asm_sysvec_apic_timer_interrupt+0x16/0x20 native_safe_halt arch/x86/include/asm/irqflags.h:51 [inline] arch_safe_halt arch/x86/include/asm/irqflags.h:89 [inline] acpi_safe_halt drivers/acpi/processor_idle.c:111 [inline] acpi_idle_do_entry drivers/acpi/processor_idle.c:554 [inline] acpi_idle_enter+0x283/0x310 drivers/acpi/processor_idle.c:691 cpuidle_enter_state+0x2ee/0x7a0 drivers/cpuidle/cpuidle.c:237 cpuidle_enter+0x3c/0x60 drivers/cpuidle/cpuidle.c:351 call_cpuidle kernel/sched/idle.c:155 [inline] cpuidle_idle_call kernel/sched/idle.c:236 [inline] do_idle+0x1b2/0x250 kernel/sched/idle.c:303 cpu_startup_entry+0x15/0x20 kernel/sched/idle.c:400 start_secondary+0x78/0x80 arch/x86/kernel/smpboot.c:266 secondary_startup_64_no_verify+0xcf/0xdb read-write to 0xffff88811b478168 of 8 bytes by interrupt on cpu 0: wg_packet_purge_staged_packets+0x5e/0x140 drivers/net/wireguard/send.c:336 wg_expired_retransmit_handshake+0x4f/0x150 drivers/net/wireguard/timers.c:55 call_timer_fn+0x2e/0x240 kernel/time/timer.c:1474 expire_timers+0x116/0x240 kernel/time/timer.c:1519 __run_timers+0x350/0x400 kernel/time/timer.c:1790 run_timer_softirq+0x2e/0x60 kernel/time/timer.c:1803 __do_softirq+0x158/0x2e3 kernel/softirq.c:571 __irq_exit_rcu kernel/softirq.c:650 [inline] irq_exit_rcu+0x41/0x70 kernel/softirq.c:662 sysvec_apic_timer_interrupt+0x8d/0xb0 arch/x86/kernel/apic/apic.c:1106 asm_sysvec_apic_timer_interrupt+0x16/0x20 native_safe_halt arch/x86/include/asm/irqflags.h:51 [inline] arch_safe_halt arch/x86/include/asm/irqflags.h:89 [inline] acpi_safe_halt drivers/acpi/processor_idle.c:111 [inline] acpi_idle_do_entry drivers/acpi/processor_idle.c:554 [inline] acpi_idle_enter+0x283/0x310 drivers/acpi/processor_idle.c:691 cpuidle_enter_state+0x2ee/0x7a0 drivers/cpuidle/cpuidle.c:237 cpuidle_enter+0x3c/0x60 drivers/cpuidle/cpuidle.c:351 call_cpuidle kernel/sched/idle.c:155 [inline] cpuidle_idle_call kernel/sched/idle.c:236 [inline] do_idle+0x1b2/0x250 kernel/sched/idle.c:303 cpu_startup_entry+0x15/0x20 kernel/sched/idle.c:400 rest_init+0xe8/0xf0 init/main.c:726 start_kernel+0x0/0x656 init/main.c:882 start_kernel+0x5d1/0x656 init/main.c:1137 secondary_startup_64_no_verify+0xcf/0xdb value changed: 0x0000000000000400 -> 0x0000000000000401 Reported by Kernel Concurrency Sanitizer on: CPU: 0 PID: 0 Comm: swapper/0 Not tainted 5.19.0-rc8-syzkaller-00152-g620725263f42-dirty #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 ==================================================================