================================================================== BUG: KCSAN: assert: race in __block_task kernel/sched/sched.h:2773 [inline] BUG: KCSAN: assert: race in dequeue_entities+0x6df/0x760 kernel/sched/fair.c:7180 race at unknown origin, with assert no writes to 0xffff888140d5c268 of 4 bytes by task 3315 on cpu 0: __block_task kernel/sched/sched.h:2773 [inline] dequeue_entities+0x6df/0x760 kernel/sched/fair.c:7180 pick_next_entity kernel/sched/fair.c:5627 [inline] pick_task_fair kernel/sched/fair.c:8859 [inline] pick_next_task_fair+0x7d/0x410 kernel/sched/fair.c:8879 __pick_next_task kernel/sched/core.c:5968 [inline] pick_next_task kernel/sched/core.c:6490 [inline] __schedule+0x284/0x940 kernel/sched/core.c:6644 __schedule_loop kernel/sched/core.c:6767 [inline] schedule+0x55/0xc0 kernel/sched/core.c:6782 do_nanosleep+0xa3/0x300 kernel/time/hrtimer.c:2032 hrtimer_nanosleep+0xc4/0x1c0 kernel/time/hrtimer.c:2080 common_nsleep+0x68/0x90 kernel/time/posix-timers.c:1365 __do_sys_clock_nanosleep kernel/time/posix-timers.c:1411 [inline] __se_sys_clock_nanosleep+0x20a/0x240 kernel/time/posix-timers.c:1388 __x64_sys_clock_nanosleep+0x55/0x70 kernel/time/posix-timers.c:1388 x64_sys_call+0x253f/0x2d60 arch/x86/include/generated/asm/syscalls_64.h:231 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xc9/0x1c0 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f value changed: 0x00000000 -> 0x00000001 Reported by Kernel Concurrency Sanitizer on: CPU: 0 UID: 0 PID: 3315 Comm: syz-executor Tainted: G W 6.12.0-rc5-syzkaller-00176-g5635f189425e #0 Tainted: [W]=WARN Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 ==================================================================