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-rw-r--r--net/socket.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/net/socket.c b/net/socket.c
index 31105f9048a8..1310a82cbba7 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;