================================================================== BUG: KCSAN: data-race in tick_sched_timer / tick_sched_timer read to 0xffffffff85f16b40 of 4 bytes by interrupt on cpu 1: tick_sched_do_timer kernel/time/tick-sched.c:200 [inline] tick_sched_timer+0x3d/0x2c0 kernel/time/tick-sched.c:1485 __run_hrtimer kernel/time/hrtimer.c:1688 [inline] __hrtimer_run_queues+0x217/0x700 kernel/time/hrtimer.c:1752 hrtimer_interrupt+0x20d/0x7b0 kernel/time/hrtimer.c:1814 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1063 [inline] __sysvec_apic_timer_interrupt+0x52/0x190 arch/x86/kernel/apic/apic.c:1080 sysvec_apic_timer_interrupt+0x31/0x80 arch/x86/kernel/apic/apic.c:1074 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:645 write to 0xffffffff85f16b40 of 4 bytes by interrupt on cpu 0: tick_sched_do_timer kernel/time/tick-sched.c:204 [inline] tick_sched_timer+0x2ad/0x2c0 kernel/time/tick-sched.c:1485 __run_hrtimer kernel/time/hrtimer.c:1688 [inline] __hrtimer_run_queues+0x217/0x700 kernel/time/hrtimer.c:1752 hrtimer_interrupt+0x20d/0x7b0 kernel/time/hrtimer.c:1814 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1063 [inline] __sysvec_apic_timer_interrupt+0x52/0x190 arch/x86/kernel/apic/apic.c:1080 sysvec_apic_timer_interrupt+0x68/0x80 arch/x86/kernel/apic/apic.c:1074 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:645 finish_task_switch+0xb6/0x280 kernel/sched/core.c:5254 context_switch kernel/sched/core.c:5385 [inline] __schedule+0x63b/0x8c0 kernel/sched/core.c:6695 schedule+0x51/0x80 kernel/sched/core.c:6771 do_nanosleep+0xa2/0x2f0 kernel/time/hrtimer.c:2047 hrtimer_nanosleep kernel/time/hrtimer.c:2100 [inline] __do_sys_nanosleep kernel/time/hrtimer.c:2135 [inline] __se_sys_nanosleep+0x20b/0x2e0 kernel/time/hrtimer.c:2121 __x64_sys_nanosleep+0x31/0x40 kernel/time/hrtimer.c:2121 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd value changed: 0xffffffff -> 0x00000001 Reported by Kernel Concurrency Sanitizer on: CPU: 0 PID: 3067 Comm: syz-fuzzer Not tainted 6.6.0-rc7-syzkaller-00195-g2af9b20dbb39 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023 ==================================================================