From: Herbert Xu
> On Thu, Dec 04, 2014 at 04:43:31PM +0100, Daniel Borkmann wrote:
> >
> > Hm, I thought the kernel doc on arch_fast_hash() in include/linux/hash.h
> > would give enough of a hint ...
>
> I think something more explicit like "do not use this in a hash
> table unless you know what you're doing" might be needed.
That isn't really helpful. Maybe something more like:
"This CRC algorithm used by this hash is 'linear', ie hash(a xor b) ==
hash(a) xor hash(b). This means that it is relatively easy for a remote
attacker to generate multiple items with the same hash."
David
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majord...@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
