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SubjectRe: [PATCH] slab: warning if total alloc size overflow
On Tue, Feb 14, 2012 at 4:53 PM, Andrew Morton
<akpm@linux-foundation.org> wrote:
> On Tue, 14 Feb 2012 15:28:19 +0800 Yang Bai <hamo.by@gmail.com> wrote:
>
>
> One of the applications of kcalloc() is to prevent userspace from
> causing a multiplicative overflow (and then perhaps causing an
> overwrite beyond the end of the allocated memory).
>
> With this patch, we've just handed the user a way of spamming the logs
> at 1MHz.  This is bad.
>
>
> Also, please let's not randomly add debug stuff in places where we've
> never demonstrated a need for it.

Ok. Please just drop this patch.

Thanks.

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