Commit 24593927 authored by Mantas M's avatar Mantas M Committed by Greg Kroah-Hartman

net: ipv6: check route protocol when deleting routes

commit c2ed1880 upstream.

The protocol field is checked when deleting IPv4 routes, but ignored for
IPv6, which causes problems with routing daemons accidentally deleting
externally set routes (observed by multiple bird6 users).

This can be verified using `ip -6 route del <prefix> proto something`.
Signed-off-by: default avatarMantas Mikulėnas <grawity@gmail.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
Cc: Ben Hutchings <ben@decadent.org.uk>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 02197940
...@@ -1731,6 +1731,8 @@ static int ip6_route_del(struct fib6_config *cfg) ...@@ -1731,6 +1731,8 @@ static int ip6_route_del(struct fib6_config *cfg)
continue; continue;
if (cfg->fc_metric && cfg->fc_metric != rt->rt6i_metric) if (cfg->fc_metric && cfg->fc_metric != rt->rt6i_metric)
continue; continue;
if (cfg->fc_protocol && cfg->fc_protocol != rt->rt6i_protocol)
continue;
dst_hold(&rt->dst); dst_hold(&rt->dst);
read_unlock_bh(&table->tb6_lock); read_unlock_bh(&table->tb6_lock);
......
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