================================================================== BUG: KCSAN: data-race in __hrtimer_run_queues / hrtimer_active read to 0xffff88812c01fbd8 of 8 bytes by task 8069 on cpu 1: hrtimer_active+0x84/0x1a0 kernel/time/hrtimer.c:1449 hrtimer_try_to_cancel+0x3c/0x260 kernel/time/hrtimer.c:1163 hrtimer_cancel kernel/time/hrtimer.c:1278 [inline] do_nanosleep+0x1a4/0x320 kernel/time/hrtimer.c:1876 hrtimer_nanosleep+0x191/0x320 kernel/time/hrtimer.c:1927 __do_sys_nanosleep kernel/time/hrtimer.c:1961 [inline] __se_sys_nanosleep kernel/time/hrtimer.c:1948 [inline] __x64_sys_nanosleep+0x106/0x150 kernel/time/hrtimer.c:1948 do_syscall_64+0xcc/0x3a0 arch/x86/entry/common.c:294 entry_SYSCALL_64_after_hwframe+0x44/0xa9 write to 0xffff88812c01fbd8 of 8 bytes by interrupt on cpu 0: __run_hrtimer kernel/time/hrtimer.c:1488 [inline] __hrtimer_run_queues+0x1e8/0x5f0 kernel/time/hrtimer.c:1579 hrtimer_interrupt+0x22a/0x480 kernel/time/hrtimer.c:1641 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:829 dup_mmap kernel/fork.c:550 [inline] dup_mm+0x373/0xba0 kernel/fork.c:1360 copy_mm kernel/fork.c:1416 [inline] copy_process+0x3138/0x3c40 kernel/fork.c:2072 _do_fork+0xfe/0x7a0 kernel/fork.c:2421 __do_sys_clone kernel/fork.c:2576 [inline] __se_sys_clone kernel/fork.c:2557 [inline] __x64_sys_clone+0x130/0x170 kernel/fork.c:2557 do_syscall_64+0xcc/0x3a0 arch/x86/entry/common.c:294 entry_SYSCALL_64_after_hwframe+0x44/0xa9 Reported by Kernel Concurrency Sanitizer on: CPU: 0 PID: 8776 Comm: syz-executor.5 Not tainted 5.5.0-rc1-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ==================================================================