Re: [PATCH] kernel: use kcalloc instead kmalloc/memset

[Roman Zippel <zippel@linux-m68k.org>]

Hi,

On Fri, 5 Aug 2005, Arjan van de Ven wrote:

> > This would imply a similiar kmalloc() would be useful as well.
> > Second, how relevant is it for the kernel? 
> 
> we've had a non-negliable amount of security holes because of this

So why don't we have a similiar kmalloc()?

> > Is that really the best place 
> > to check for rogue user parameters?
> 
> it makes it easy and safe. Of course you can and should check it in all
> users. Just that using a safer API is generally better than forcing
> everyone to do it themselves.

How exactly does this make it a "safe API"? Even if it checks for this one 
case, it still makes the user suspectible for allocating big amounts of 
unswappable memory.

bye, Roman
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