net/sched: flower: add missing validation of TCA_FLOWER_FLAGS
[ Upstream commite2debf0852
] unlike other classifiers that can be offloaded (i.e. users can set flags like 'skip_hw' and 'skip_sw'), 'cls_flower' doesn't validate the size of netlink attribute 'TCA_FLOWER_FLAGS' provided by user: add a proper entry to fl_policy. Fixes:5b33f48842
("net/flower: Introduce hardware offload support") Signed-off-by: Davide Caratti <dcaratti@redhat.com> Acked-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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@ -689,6 +689,7 @@ static const struct nla_policy fl_policy[TCA_FLOWER_MAX + 1] = {
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.len = 128 / BITS_PER_BYTE },
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[TCA_FLOWER_KEY_CT_LABELS_MASK] = { .type = NLA_BINARY,
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.len = 128 / BITS_PER_BYTE },
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[TCA_FLOWER_FLAGS] = { .type = NLA_U32 },
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};
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static const struct nla_policy
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