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Date: Fri, 30 Mar 2007 01:45:42 +0300 From: Sami Farin <safari-kernel@...ari.iki.fi> To: netdev@...r.kernel.org Subject: Re: [PATCH][IPv6]: Fix incorrect length check in rawv6_sendmsg() On Thu, Mar 29, 2007 at 14:26:44 -0700, David Miller wrote: > From: Sridhar Samudrala <sri@...ibm.com> > Date: Thu, 29 Mar 2007 14:17:28 -0700 > > > The check for length in rawv6_sendmsg() is incorrect. > > As len is an unsigned int, (len < 0) will never be TRUE. > > I think checking for IPV6_MAXPLEN(65535) is better. > > > > Is it possible to send ipv6 jumbo packets using raw > > sockets? If so, we can remove this check. > > I don't see why such a limitation against jumbo would exist, > does anyone else? > > Thanks for catching this Sridhar. A good compiler should simply > fail to compile "if (x < 0)" when 'x' is an unsigned type, don't > you think :-) gcc warns if you use -W or -Wextra (but not if only -Wall is used): * An unsigned value is compared against zero with '<' or '>='. -- Do what you love because life is too short for anything else. - To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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