================================================================== BUG: KCSAN: data-race in __hrtimer_run_queues / hrtimer_active read to 0xffff88812be1d818 of 8 bytes by interrupt on cpu 1: hrtimer_active+0x84/0x1a0 kernel/time/hrtimer.c:1321 entity_tick kernel/sched/fair.c:4301 [inline] task_tick_fair+0x4c/0x920 kernel/sched/fair.c:9977 scheduler_tick+0x5c/0xe0 kernel/sched/core.c:3471 update_process_times+0x5f/0x80 kernel/time/timer.c:1644 tick_sched_handle+0x75/0x100 kernel/time/tick-sched.c:167 tick_sched_timer+0x58/0xe0 kernel/time/tick-sched.c:1296 __run_hrtimer kernel/time/hrtimer.c:1389 [inline] __hrtimer_run_queues+0x288/0x600 kernel/time/hrtimer.c:1451 hrtimer_interrupt+0x22a/0x480 kernel/time/hrtimer.c:1509 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1110 [inline] smp_apic_timer_interrupt+0xdc/0x280 arch/x86/kernel/apic/apic.c:1135 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:830 __read_once_size include/linux/compiler.h:227 [inline] arch_atomic64_read arch/x86/include/asm/atomic64_64.h:22 [inline] atomic64_read include/asm-generic/atomic-instrumented.h:925 [inline] atomic_long_read include/asm-generic/atomic-long.h:28 [inline] find_watchpoint kernel/kcsan/core.c:84 [inline] __kcsan_check_watchpoint+0xbb/0x180 kernel/kcsan/core.c:322 __tsan_read8+0x15/0x30 kernel/kcsan/kcsan.c:31 get_next_corpse net/netfilter/nf_conntrack_core.c:2005 [inline] nf_ct_iterate_cleanup+0x1d0/0x2e0 net/netfilter/nf_conntrack_core.c:2037 nf_ct_iterate_cleanup_net net/netfilter/nf_conntrack_core.c:2122 [inline] nf_ct_iterate_cleanup_net+0xe2/0xf0 net/netfilter/nf_conntrack_core.c:2107 write to 0xffff88812be1d818 of 8 bytes by interrupt on cpu 0: __run_hrtimer kernel/time/hrtimer.c:1360 [inline] __hrtimer_run_queues+0x1f2/0x600 kernel/time/hrtimer.c:1451 hrtimer_interrupt+0x22a/0x480 kernel/time/hrtimer.c:1509 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1110 [inline] smp_apic_timer_interrupt+0xdc/0x280 arch/x86/kernel/apic/apic.c:1135 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:830 find_watchpoint kernel/kcsan/core.c:83 [inline] __kcsan_check_watchpoint+0xa9/0x180 kernel/kcsan/core.c:322 __tsan_read8+0x15/0x30 kernel/kcsan/kcsan.c:31 tomoyo_compare_name_union+0x26/0xa0 security/tomoyo/file.c:85 tomoyo_check_path2_acl+0x81/0xb0 security/tomoyo/file.c:303 tomoyo_check_acl+0xf6/0x270 security/tomoyo/domain.c:172 tomoyo_path2_perm+0x3d3/0x4c0 security/tomoyo/file.c:942 tomoyo_path_rename+0x95/0xd0 security/tomoyo/tomoyo.c:285 security_path_rename+0x17e/0x1e0 security/security.c:1039 do_renameat2+0x6ea/0xa50 fs/namei.c:4623 Reported by Kernel Concurrency Sanitizer on: CPU: 0 PID: 7227 Comm: udevd Not tainted 5.3.0+ #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ==================================================================