diff options
| -rw-r--r-- | net/ipv6/af_inet6.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/net/ipv6/af_inet6.c b/net/ipv6/af_inet6.c index fbf533cc9dce..7f092fa912bd 100644 --- a/net/ipv6/af_inet6.c +++ b/net/ipv6/af_inet6.c @@ -276,6 +276,13 @@ int inet6_bind(struct socket *sock, struct sockaddr *uaddr, int addr_len) /* Check if the address belongs to the host. */ if (addr_type == IPV6_ADDR_MAPPED) { + /* Binding to v4-mapped address on a v6-only socket + * makes no sense + */ + if (np->ipv6only) { + err = -EINVAL; + goto out; + } v4addr = addr->sin6_addr.s6_addr32[3]; if (inet_addr_type(net, v4addr) != RTN_LOCAL) { err = -EADDRNOTAVAIL; |