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Message-ID: <4D861298.1040700@trash.net> Date: Sun, 20 Mar 2011 15:43:36 +0100 From: Patrick McHardy <kaber@...sh.net> To: Changli Gao <xiaosuo@...il.com> CC: Vasiliy Kulikov <segoon@...nwall.com>, linux-kernel@...r.kernel.org, security@...nel.org, "David S. Miller" <davem@...emloft.net>, Alexey Kuznetsov <kuznet@....inr.ac.ru>, James Morris <jmorris@...ei.org>, Hideaki YOSHIFUJI <yoshfuji@...ux-ipv6.org>, netfilter-devel@...r.kernel.org, netfilter@...r.kernel.org, coreteam@...filter.org, netdev@...r.kernel.org Subject: Re: [PATCH v2] ipv4: netfilter: ipt_CLUSTERIP: fix buffer overflow Am 17.03.2011 13:15, schrieb Changli Gao: > On Thu, Mar 17, 2011 at 7:32 PM, Vasiliy Kulikov <segoon@...nwall.com> 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@...nwall.com> > Acked-by: Changli Gao <xiaosuo@...il.com> > > Applied, thanks everyone. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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