Re: [PATCH] trace: Avoid memory leak in predicate_parse()

[Steven Rostedt]

On Tue, 28 May 2019 17:18:59 +0200
Tomas Bortoli <tomasbortoli@xxxxxxxxx> wrote:

> >> +	memset(prog_stack, 0, nr_preds * sizeof(*prog_stack));
> >> +  
> > 
> > Can you instead just switch the allocation of prog_stack to use
> > kcalloc()?  
> 
> kmalloc_array() is safe against arithmetic overflow of the arguments.
> Using kcalloc() directly we wouldn't check for that. Not really ideal in
> my opinion. And there's no kcalloc_array() apparently!

But doesn't kcalloc() simply call kmalloc_array() with the GFP_ZERO
flag?

-- Steve