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aa68c20ff3
Only search for IFLA_EXT_MASK if the message actually carries a ifinfomsg header and validate minimal length requirements for IFLA_EXT_MASK. Fixes: 6cbdceeb ("bridge: Dump vlan information from a bridge port") Cc: Vlad Yasevich <vyasevic@redhat.com> Signed-off-by: Thomas Graf <tgraf@suug.ch> Signed-off-by: David S. Miller <davem@davemloft.net>