Re: [PATCH v2] ipv4: netfilter: ipt_CLUSTERIP: fix buffer overflow

[Changli Gao]

On Thu, Mar 17, 2011 at 7:32 PM, Vasiliy Kulikov <segoon@xxxxxxxxxxxx> wrote:
> 'buffer' string is copied from userspace.  It is not checked whether it is
> zero terminated.  This may lead to overflow inside of simple_strtoul().
> Changli Gao suggested to copy not more than user supplied 'size' bytes.
>
> It was introduced before the git epoch.  Files "ipt_CLUSTERIP/*" are
> root writable only by default, however, on some setups permissions might be
> relaxed to e.g. network admin user.
>
> Signed-off-by: Vasiliy Kulikov <segoon@xxxxxxxxxxxx>
Acked-by: Changli Gao <xiaosuo@xxxxxxxxx>


-- 
Regards,
Changli Gao(xiaosuo@xxxxxxxxx)
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