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Date: Tue, 10 Nov 2015 16:03:52 -0800 From: Greg Kroah-Hartman <gregkh@...uxfoundation.org> To: Josh Hunt <joshhunt00@...il.com> Cc: Sabrina Dubroca <sd@...asysnail.net>, netdev@...r.kernel.org, herbert@...dor.apana.org.au, stable <stable@...r.kernel.org>, hannes@...essinduktion.org Subject: Re: [PATCH stable <= 3.18] net: add length argument to skb_copy_and_csum_datagram_iovec On Tue, Nov 10, 2015 at 05:59:26PM -0600, Josh Hunt wrote: > On Thu, Oct 29, 2015 at 5:00 AM, Sabrina Dubroca <sd@...asysnail.net> wrote: > > 2015-10-15, 14:25:03 +0200, Sabrina Dubroca wrote: > >> Without this length argument, we can read past the end of the iovec in > >> memcpy_toiovec because we have no way of knowing the total length of the > >> iovec's buffers. > >> > >> This is needed for stable kernels where 89c22d8c3b27 ("net: Fix skb > >> csum races when peeking") has been backported but that don't have the > >> ioviter conversion, which is almost all the stable trees <= 3.18. > >> > >> This also fixes a kernel crash for NFS servers when the client uses > >> -onfsvers=3,proto=udp to mount the export. > >> > >> Signed-off-by: Sabrina Dubroca <sd@...asysnail.net> > >> Reviewed-by: Hannes Frederic Sowa <hannes@...essinduktion.org> > > > > Fixes CVE-2015-8019. > > http://www.openwall.com/lists/oss-security/2015/10/29/1 > > > > -- > > Sabrina > > -- > > 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 > > Greg > > Do you have this in your queue? I saw a few other stables pick this > up, but haven't seen it in 3.14 or 3.18 yet. It wasn't clear to me if > this had been fully reviewed yet. I rely on Dave to package up networking stable patches and forward them on to me, that's why you haven't seen it be picked up yet. thanks, greg k-h -- 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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