Re: Resend [PATCH] netfilter: Fix copy_to_user too small sizeparametre.

[Pablo Neira Ayuso]

On Sun, Mar 04, 2012 at 06:09:08PM +0530, santosh prasad nayak wrote:
> where is it broken ?
> Can you please explain ?

> >> +     strncpy(name, t->u.target->name, sizeof(name));
> >>       hlp = ubase + (((char *)e + e->target_offset) - base);
> >>       t = (struct ebt_entry_target *)(((char *)e) + e->target_offset);

In ebt_make_names, you dereference t but it is not initialized.

Note that strncpy refers to t->u.target->name which is initialized a
couple of lines after it.
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