1 files changed, 6 insertions, 0 deletions

diff --git a/net/socket.c b/net/socket.c
index 31105f9048a..1310a82cbba 100644
--- a/net/socket.c
+++ b/net/socket.c
@@ -1222,6 +1222,12 @@ asmlinkage long sys_socket(int family, int type, int protocol)
         struct socket *sock;
         int flags;
 
+        /* Check the SOCK_* constants for consistency.  */
+        BUILD_BUG_ON(SOCK_CLOEXEC != O_CLOEXEC);
+        BUILD_BUG_ON((SOCK_MAX | SOCK_TYPE_MASK) != SOCK_TYPE_MASK);
+        BUILD_BUG_ON(SOCK_CLOEXEC & SOCK_TYPE_MASK);
+        BUILD_BUG_ON(SOCK_NONBLOCK & SOCK_TYPE_MASK);
+
         flags = type & ~SOCK_TYPE_MASK;
         if (flags & ~(SOCK_CLOEXEC | SOCK_NONBLOCK))
                 return -EINVAL;