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Diffstat (limited to 'net/ipv6/route.c')
-rw-r--r--net/ipv6/route.c6
1 files changed, 4 insertions, 2 deletions
diff --git a/net/ipv6/route.c b/net/ipv6/route.c
index d0619632723a..2701cb3d88e9 100644
--- a/net/ipv6/route.c
+++ b/net/ipv6/route.c
@@ -1171,6 +1171,7 @@ struct dst_entry *ip6_route_output(struct net *net, const struct sock *sk,
{
struct dst_entry *dst;
int flags = 0;
+ bool any_src;
dst = l3mdev_rt6_dst_by_oif(net, fl6);
if (dst)
@@ -1178,11 +1179,12 @@ struct dst_entry *ip6_route_output(struct net *net, const struct sock *sk,
fl6->flowi6_iif = LOOPBACK_IFINDEX;
+ any_src = ipv6_addr_any(&fl6->saddr);
if ((sk && sk->sk_bound_dev_if) || rt6_need_strict(&fl6->daddr) ||
- fl6->flowi6_oif)
+ (fl6->flowi6_oif && any_src))
flags |= RT6_LOOKUP_F_IFACE;
- if (!ipv6_addr_any(&fl6->saddr))
+ if (!any_src)
flags |= RT6_LOOKUP_F_HAS_SADDR;
else if (sk)
flags |= rt6_srcprefs2flags(inet6_sk(sk)->srcprefs);