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SubjectRe: [Patch 14/21] Create ELF header
On 12/14, Suzuki K. Poulose wrote:
>
> +static void get_elfhdr_size(struct core_proc *cp)
> +{
> + struct vm_area_struct *gate_vma;
> + int segs;
> +
> + segs = cp->task->mm->map_count;

But this is unsafe. What if cp->task was stopped when
open_gencore() was called? In this case it can be killed/dead.

cp->task->mm can be NULL. In fact, cp->task can point to nothing.

Any usage of cp->task is not safe, afaics.

Oleg.



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