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Diffstat (limited to 'net/sctp/protocol.c')
-rw-r--r--net/sctp/protocol.c7
1 files changed, 7 insertions, 0 deletions
diff --git a/net/sctp/protocol.c b/net/sctp/protocol.c
index dd811a8456a..cdd881142f2 100644
--- a/net/sctp/protocol.c
+++ b/net/sctp/protocol.c
@@ -381,6 +381,10 @@ static int sctp_v4_addr_valid(union sctp_addr *addr,
struct sctp_sock *sp,
const struct sk_buff *skb)
{
+ /* IPv4 addresses not allowed */
+ if (sp && ipv6_only_sock(sctp_opt2sk(sp)))
+ return 0;
+
/* Is this a non-unicast address or a unusable SCTP address? */
if (IS_IPV4_UNUSABLE_ADDRESS(addr->v4.sin_addr.s_addr))
return 0;
@@ -404,6 +408,9 @@ static int sctp_v4_available(union sctp_addr *addr, struct sctp_sock *sp)
!sysctl_ip_nonlocal_bind)
return 0;
+ if (ipv6_only_sock(sctp_opt2sk(sp)))
+ return 0;
+
return 1;
}