1 files changed, 8 insertions, 0 deletions

diff --git a/security/selinux/hooks.c b/security/selinux/hooks.c
index d37a72316e9d..e67a526d1f30 100644
--- a/security/selinux/hooks.c
+++ b/security/selinux/hooks.c
@@ -4367,10 +4367,18 @@ static int selinux_socket_bind(struct socket *sock, struct sockaddr *address, in
                 u32 sid, node_perm;
 
                 if (family == PF_INET) {
+                        if (addrlen < sizeof(struct sockaddr_in)) {
+                                err = -EINVAL;
+                                goto out;
+                        }
                         addr4 = (struct sockaddr_in *)address;
                         snum = ntohs(addr4->sin_port);
                         addrp = (char *)&addr4->sin_addr.s_addr;
                 } else {
+                        if (addrlen < SIN6_LEN_RFC2133) {
+                                err = -EINVAL;
+                                goto out;
+                        }
                         addr6 = (struct sockaddr_in6 *)address;
                         snum = ntohs(addr6->sin6_port);
                         addrp = (char *)&addr6->sin6_addr.s6_addr;