[PATCH v2 1/3] init/main.c: Give init_task a canary

Chuck Ebbert cebbert.lkml at gmail.com
Wed Sep 10 17:26:54 EST 2014


On Tue,  9 Sep 2014 10:42:27 +0100
Aaron Tomlin <atomlin at redhat.com> wrote:

> +void task_stack_end_magic(struct task_struct *tsk)
> +{
> +	unsigned long *stackend;
> +
> +	stackend = end_of_stack(tsk);
> +	*stackend = STACK_END_MAGIC;	/* for overflow detection */
> +}
> +

For clarity this should probably be called set_task_stack_end_magic().

And has this been tested on parisc and metag, which use STACK_GROWSUP ?
I can't see how end_of_stack() as it's defined now could work on those archs.




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