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-rw-r--r--net/tipc/udp_media.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/net/tipc/udp_media.c b/net/tipc/udp_media.c
index 6fe8740a226f..fb2f7ec68eef 100644
--- a/net/tipc/udp_media.c
+++ b/net/tipc/udp_media.c
@@ -310,9 +310,14 @@ err:
#if IS_ENABLED(CONFIG_IPV6)
} else if ((sa_local.ss_family & sa_remote.ss_family) == AF_INET6) {
+ int atype;
struct sockaddr_in6 *ip6;
ip6 = (struct sockaddr_in6 *)&sa_local;
+ atype = ipv6_addr_type(&ip6->sin6_addr);
+ if (__ipv6_addr_needs_scope_id(atype) && !ip6->sin6_scope_id)
+ return -EINVAL;
+
local->proto = htons(ETH_P_IPV6);
local->udp_port = ip6->sin6_port;
memcpy(&local->ipv6, &ip6->sin6_addr, sizeof(struct in6_addr));