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authorEric Dumazet <edumazet@google.com>2013-06-26 04:15:07 -0700
committerDavid S. Miller <davem@davemloft.net>2013-06-26 15:13:47 -0700
commita963a37d384d71ad43b3e9e79d68d42fbe0901f3 (patch)
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parent5dbe7c178d3f0a4634f088d9e729f1909b9ddcd1 (diff)
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ipv6: ip6_sk_dst_check() must not assume ipv6 dst
It's possible to use AF_INET6 sockets and to connect to an IPv4 destination. After this, socket dst cache is a pointer to a rtable, not rt6_info. ip6_sk_dst_check() should check the socket dst cache is IPv6, or else various corruptions/crashes can happen. Dave Jones can reproduce immediate crash with trinity -q -l off -n -c sendmsg -c connect With help from Hannes Frederic Sowa Reported-by: Dave Jones <davej@redhat.com> Reported-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: Eric Dumazet <edumazet@google.com> Acked-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
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