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Subject[PATCH 5.5 006/399] net/sched: flower: add missing validation of TCA_FLOWER_FLAGS
Date
From: Davide Caratti <dcaratti@redhat.com>

[ Upstream commit e2debf0852c4d66ba1a8bde12869b196094c70a7 ]

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: 5b33f48842fa ("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>
---
net/sched/cls_flower.c | 1 +
1 file changed, 1 insertion(+)

--- a/net/sched/cls_flower.c
+++ b/net/sched/cls_flower.c
@@ -691,6 +691,7 @@ static const struct nla_policy fl_policy
.len = 128 / BITS_PER_BYTE },
[TCA_FLOWER_KEY_CT_LABELS_MASK] = { .type = NLA_BINARY,
.len = 128 / BITS_PER_BYTE },
+ [TCA_FLOWER_FLAGS] = { .type = NLA_U32 },
};

static const struct nla_policy

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