================================================================== BUG: KCSAN: data-race in next_expiry_recalc / update_process_times write to 0xffff888237c1ded8 of 8 bytes by interrupt on cpu 1: next_expiry_recalc+0x187/0x1e0 kernel/time/timer.c:1967 __run_timers kernel/time/timer.c:2405 [inline] __run_timer_base+0x2ee/0x640 kernel/time/timer.c:2419 timer_expire_remote+0x2f/0x40 kernel/time/timer.c:2180 tmigr_handle_remote_cpu kernel/time/timer_migration.c:908 [inline] tmigr_handle_remote_up kernel/time/timer_migration.c:1000 [inline] __walk_groups kernel/time/timer_migration.c:488 [inline] tmigr_handle_remote+0x4be/0x8e0 kernel/time/timer_migration.c:1054 run_timer_softirq+0x5f/0x70 kernel/time/timer.c:2442 __do_softirq+0xc8/0x285 kernel/softirq.c:554 invoke_softirq kernel/softirq.c:428 [inline] __irq_exit_rcu kernel/softirq.c:633 [inline] irq_exit_rcu+0x3c/0x90 kernel/softirq.c:645 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1043 [inline] sysvec_apic_timer_interrupt+0x73/0x80 arch/x86/kernel/apic/apic.c:1043 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702 io_cqring_do_overflow_flush io_uring/io_uring.c:723 [inline] io_cqring_wait io_uring/io_uring.c:2669 [inline] __do_sys_io_uring_enter io_uring/io_uring.c:3701 [inline] __se_sys_io_uring_enter+0x14f3/0x18e0 io_uring/io_uring.c:3591 __x64_sys_io_uring_enter+0x78/0x90 io_uring/io_uring.c:3591 do_syscall_64+0xd3/0x1d0 entry_SYSCALL_64_after_hwframe+0x6d/0x75 read to 0xffff888237c1ded8 of 8 bytes by interrupt on cpu 0: run_local_timers kernel/time/timer.c:2457 [inline] update_process_times+0x8a/0x180 kernel/time/timer.c:2475 tick_sched_handle kernel/time/tick-sched.c:273 [inline] tick_nohz_handler+0x250/0x2d0 kernel/time/tick-sched.c:294 __run_hrtimer kernel/time/hrtimer.c:1692 [inline] __hrtimer_run_queues+0x214/0x5e0 kernel/time/hrtimer.c:1756 hrtimer_interrupt+0x210/0x7b0 kernel/time/hrtimer.c:1818 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1032 [inline] __sysvec_apic_timer_interrupt+0x5c/0x1a0 arch/x86/kernel/apic/apic.c:1049 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1043 [inline] sysvec_apic_timer_interrupt+0x6e/0x80 arch/x86/kernel/apic/apic.c:1043 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702 native_safe_halt arch/x86/include/asm/irqflags.h:48 [inline] arch_safe_halt arch/x86/include/asm/irqflags.h:86 [inline] acpi_safe_halt+0x21/0x30 drivers/acpi/processor_idle.c:112 acpi_idle_do_entry+0x1d/0x30 drivers/acpi/processor_idle.c:573 acpi_idle_enter+0x96/0xb0 drivers/acpi/processor_idle.c:707 cpuidle_enter_state+0xcf/0x270 drivers/cpuidle/cpuidle.c:267 cpuidle_enter+0x40/0x70 drivers/cpuidle/cpuidle.c:388 call_cpuidle kernel/sched/idle.c:155 [inline] cpuidle_idle_call kernel/sched/idle.c:236 [inline] do_idle+0x195/0x230 kernel/sched/idle.c:332 cpu_startup_entry+0x25/0x30 kernel/sched/idle.c:430 rest_init+0xef/0xf0 init/main.c:732 start_kernel+0x57c/0x5e0 init/main.c:1074 x86_64_start_reservations+0x2a/0x30 arch/x86/kernel/head64.c:509 x86_64_start_kernel+0x94/0xa0 arch/x86/kernel/head64.c:490 common_startup_64+0x12c/0x137 value changed: 0x000000010000a93a -> 0x000000010000a93c Reported by Kernel Concurrency Sanitizer on: CPU: 0 PID: 0 Comm: swapper/0 Tainted: G W 6.8.0-syzkaller-11409-gf6cef5f8c37f #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/29/2024 ==================================================================