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Message-ID: <4682386.1vFt617rtG@h2o.as.studentenwerk.mhn.de> Date: Fri, 15 May 2015 11:37:14 +0200 From: Wolfgang Walter <linux@...m.de> To: David Miller <davem@...emloft.net>, eric.dumazet@...il.com Cc: netdev@...r.kernel.org, vyasevic@...hat.com Subject: Re: [PATCH] ipv6: Fix udp checksums with raw sockets Am Donnerstag, 14. Mai 2015, 22:27:32 schrieben Sie: > From: Vladislav Yasevich <vyasevich@...il.com> > Date: Thu, 14 May 2015 20:34:08 -0400 > > > It was reported that trancerout6 would cause > > a kernel to crash when trying to compute checksums > > on raw UDP packets. The cause was the check in > > __ip6_append_data that would attempt to use > > partial checksums on the packet. However, > > raw sockets do not initialize partial checksum > > fields so partial checksums can't be used. > > > > Solve this the same way IPv4 does it. raw sockets > > pass transhdrlen value of 0 to ip_append_data which > > causes the checksum to be computed in software. Use > > the same check in ip6_append_data (check transhdrlen). > > > > Reported-by: Wolfgang Walter <linux@...m.de> > > CC: Wolfgang Walter <linux@...m.de> > > CC: Eric Dumazet <eric.dumazet@...il.com> > > Signed-off-by: Vladislav Yasevich <vyasevic@...hat.com> > > Applied.... This seems like -stable material? If so, how far > back? starting with 4.0 Regards, -- Wolfgang Walter Studentenwerk München Anstalt des öffentlichen Rechts -- 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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