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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2021-11-28 09:15:34 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2021-11-28 09:15:34 -0800 |
| commit | 97891bbf38f71ec97199d2459368b5b4b700706e (patch) | |
| tree | e0b924ce28227bde449517fc7dfe1afa83b0424c /kernel/sched/core.c | |
| parent | 1ed1d3a3da224d8d2d82ad4a1f769a472a603e62 (diff) | |
| parent | dce1ca0525bfdc8a69a9343bc714fbc19a2f04b3 (diff) | |
Merge tag 'sched-urgent-2021-11-28' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull scheduler fix from Thomas Gleixner:
"A single scheduler fix to ensure that there is no stale KASAN shadow
state left on the idle task's stack when a CPU is brought up after it
was brought down before"
* tag 'sched-urgent-2021-11-28' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
sched/scs: Reset task stack state in bringup_cpu()
Diffstat (limited to 'kernel/sched/core.c')
| -rw-r--r-- | kernel/sched/core.c | 4 |
1 files changed, 0 insertions, 4 deletions
diff --git a/kernel/sched/core.c b/kernel/sched/core.c index 3c9b0fda64ac..76f9deeaa942 100644 --- a/kernel/sched/core.c +++ b/kernel/sched/core.c @@ -8619,9 +8619,6 @@ void __init init_idle(struct task_struct *idle, int cpu) idle->flags |= PF_IDLE | PF_KTHREAD | PF_NO_SETAFFINITY; kthread_set_per_cpu(idle, cpu); - scs_task_reset(idle); - kasan_unpoison_task_stack(idle); - #ifdef CONFIG_SMP /* * It's possible that init_idle() gets called multiple times on a task, @@ -8777,7 +8774,6 @@ void idle_task_exit(void) finish_arch_post_lock_switch(); } - scs_task_reset(current); /* finish_cpu(), as ran on the BP, will clean up the active_mm state */ } |