tree 6627b63b785df9175e04a0ce1b49d5eea8ea0777
parent e7d481a6f3c13041446b7bb8f98ab861460076a3
author Nicolas Dichtel <nicolas.dichtel@dev.6wind.com> 1269560735 +0000
committer David S. Miller <davem@davemloft.net> 1269704001 -0700

net: ipmr/ip6mr: prevent out-of-bounds vif_table access

When cache is unresolved, c->mf[6]c_parent is set to 65535 and
minvif, maxvif are not initialized, hence we must avoid to
parse IIF and OIF.
A second problem can happen when the user dumps a cache entry
where a VIF, that was referenced at creation time, has been
removed.

Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Signed-off-by: David S. Miller <davem@davemloft.net>