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Merge pull request #6903 from ton31337/fix/prevent_null_pointer_dereference_for_aspath

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bgpd: Reuse bgp_adj_in for attr to avoid null dereference under aspath
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Rafael Zalamena 2020-08-26 10:07:53 -03:00 committed by GitHub
commit 0856cc337f
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1 changed files with 3 additions and 1 deletions
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bgpd/bgp_route.c
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@ -3063,12 +3063,14 @@ static uint32_t bgp_filtered_routes_count(struct peer *peer, afi_t afi,
bool filtered = false; bool filtered = false;
struct bgp_dest *dest; struct bgp_dest *dest;
struct bgp_adj_in *ain; struct bgp_adj_in *ain;
struct attr attr = {};
struct bgp_table *table = peer->bgp->rib[afi][safi]; struct bgp_table *table = peer->bgp->rib[afi][safi];
for (dest = bgp_table_top(table); dest; dest = bgp_route_next(dest)) { for (dest = bgp_table_top(table); dest; dest = bgp_route_next(dest)) {
for (ain = dest->adj_in; ain; ain = ain->next) { for (ain = dest->adj_in; ain; ain = ain->next) {
const struct prefix *rn_p = bgp_dest_get_prefix(dest); const struct prefix *rn_p = bgp_dest_get_prefix(dest);
struct attr attr = {};
attr = *ain->attr;
if (bgp_input_filter(peer, rn_p, &attr, afi, safi) if (bgp_input_filter(peer, rn_p, &attr, afi, safi)
== FILTER_DENY) == FILTER_DENY)