diff options
Diffstat (limited to 'net/sched/act_mpls.c')
| -rw-r--r-- | net/sched/act_mpls.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/net/sched/act_mpls.c b/net/sched/act_mpls.c index 0fccae356dc1..197915332b42 100644 --- a/net/sched/act_mpls.c +++ b/net/sched/act_mpls.c @@ -116,6 +116,11 @@ static int valid_label(const struct nlattr *attr, { const u32 *label = nla_data(attr); + if (nla_len(attr) != sizeof(*label)) { + NL_SET_ERR_MSG_MOD(extack, "Invalid MPLS label length"); + return -EINVAL; + } + if (*label & ~MPLS_LABEL_MASK || *label == MPLS_LABEL_IMPLNULL) { NL_SET_ERR_MSG_MOD(extack, "MPLS label out of range"); return -EINVAL; @@ -128,7 +133,8 @@ static const struct nla_policy mpls_policy[TCA_MPLS_MAX + 1] = { [TCA_MPLS_UNSPEC] = { .strict_start_type = TCA_MPLS_UNSPEC + 1 }, [TCA_MPLS_PARMS] = NLA_POLICY_EXACT_LEN(sizeof(struct tc_mpls)), [TCA_MPLS_PROTO] = { .type = NLA_U16 }, - [TCA_MPLS_LABEL] = NLA_POLICY_VALIDATE_FN(NLA_U32, valid_label), + [TCA_MPLS_LABEL] = NLA_POLICY_VALIDATE_FN(NLA_BINARY, + valid_label), [TCA_MPLS_TC] = NLA_POLICY_RANGE(NLA_U8, 0, 7), [TCA_MPLS_TTL] = NLA_POLICY_MIN(NLA_U8, 1), [TCA_MPLS_BOS] = NLA_POLICY_RANGE(NLA_U8, 0, 1), |