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authorMantas M <grawity@gmail.com>2016-12-16 09:30:59 +0100
committerDavid S. Miller <davem@davemloft.net>2016-12-18 03:37:06 +0100
commitc2ed1880fd61a998e3ce40254a99a2ad000f1a7d (patch)
tree3e1a87a186ce183388ea45659938170d8fafb161 /net
parentr6040: move spinlock in r6040_close as SOFTIRQ-unsafe lock order detected (diff)
downloadlinux-c2ed1880fd61a998e3ce40254a99a2ad000f1a7d.tar.xz
linux-c2ed1880fd61a998e3ce40254a99a2ad000f1a7d.zip
net: ipv6: check route protocol when deleting routes
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: Mantas Mikulėnas <grawity@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to '')
-rw-r--r--net/ipv6/route.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/net/ipv6/route.c b/net/ipv6/route.c
index 2413a0637d99..890acace01d0 100644
--- a/net/ipv6/route.c
+++ b/net/ipv6/route.c
@@ -2174,6 +2174,8 @@ static int ip6_route_del(struct fib6_config *cfg)
continue;
if (cfg->fc_metric && cfg->fc_metric != rt->rt6i_metric)
continue;
+ if (cfg->fc_protocol && cfg->fc_protocol != rt->rt6i_protocol)
+ continue;
dst_hold(&rt->dst);
read_unlock_bh(&table->tb6_lock);