50 lines
1.7 KiB
Diff
50 lines
1.7 KiB
Diff
diff --git a/ospfd/ospf_te.c b/ospfd/ospf_te.c
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index 3cf39e5..1c94a2c 100644
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--- a/ospfd/ospf_te.c
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+++ b/ospfd/ospf_te.c
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@@ -1669,6 +1669,11 @@ static struct ls_edge *get_edge(struct ls_ted *ted, struct ls_node_id adv,
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struct ls_edge *edge;
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struct ls_attributes *attr;
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+ /* Check that Link ID and Node ID are valid */
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+ if (IPV4_NET0(link_id.s_addr) || IPV4_NET0(adv.id.ip.addr.s_addr) ||
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+ adv.origin != OSPFv2)
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+ return NULL;
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+
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/* Search Edge that corresponds to the Link ID */
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key.family = AF_INET;
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IPV4_ADDR_COPY(&key.k.addr, &link_id);
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@@ -1742,6 +1747,10 @@ static void ospf_te_update_link(struct ls_ted *ted, struct ls_vertex *vertex,
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/* Get Corresponding Edge from Link State Data Base */
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edge = get_edge(ted, vertex->node->adv, link_data);
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+ if (!edge) {
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+ ote_debug(" |- Found no edge from Link Data. Abort!");
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+ return;
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+ }
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attr = edge->attributes;
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/* re-attached edge to vertex if needed */
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@@ -2261,6 +2270,10 @@ static int ospf_te_parse_te(struct ls_ted *ted, struct ospf_lsa *lsa)
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/* Get corresponding Edge from Link State Data Base */
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edge = get_edge(ted, attr.adv, attr.standard.local);
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+ if (!edge) {
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+ ote_debug(" |- Found no edge from Link local add./ID. Abort!");
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+ return -1;
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+ }
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old = edge->attributes;
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ote_debug(" |- Process Traffic Engineering LSA %pI4 for Edge %pI4",
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@@ -2745,6 +2758,10 @@ static int ospf_te_parse_ext_link(struct ls_ted *ted, struct ospf_lsa *lsa)
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lnid.id.ip.area_id = lsa->area->area_id;
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ext = (struct ext_tlv_link *)TLV_HDR_TOP(lsa->data);
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edge = get_edge(ted, lnid, ext->link_data);
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+ if (!edge) {
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+ ote_debug(" |- Found no edge from Extended Link Data. Abort!");
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+ return -1;
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+ }
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atr = edge->attributes;
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ote_debug(" |- Process Extended Link LSA %pI4 for edge %pI4",
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