net/sched: matchall: add missing validation of TCA_MATCHALL_FLAGS
[ Upstream commit1afa3cc90f
] unlike other classifiers that can be offloaded (i.e. users can set flags like 'skip_hw' and 'skip_sw'), 'cls_matchall' doesn't validate the size of netlink attribute 'TCA_MATCHALL_FLAGS' provided by user: add a proper entry to mall_policy. Fixes:b87f7936a9
("net/sched: Add match-all classifier hw offloading.") 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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@ -157,6 +157,7 @@ static void *mall_get(struct tcf_proto *tp, u32 handle)
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static const struct nla_policy mall_policy[TCA_MATCHALL_MAX + 1] = {
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[TCA_MATCHALL_UNSPEC] = { .type = NLA_UNSPEC },
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[TCA_MATCHALL_CLASSID] = { .type = NLA_U32 },
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[TCA_MATCHALL_FLAGS] = { .type = NLA_U32 },
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};
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static int mall_set_parms(struct net *net, struct tcf_proto *tp,
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