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-rw-r--r--net/compat.c6
1 files changed, 5 insertions, 1 deletions
diff --git a/net/compat.c b/net/compat.c
index 959d1c51826d..3d348198004f 100644
--- a/net/compat.c
+++ b/net/compat.c
@@ -388,8 +388,12 @@ static int __compat_sys_setsockopt(int fd, int level, int optname,
char __user *optval, unsigned int optlen)
{
int err;
- struct socket *sock = sockfd_lookup(fd, &err);
+ struct socket *sock;
+
+ if (optlen > INT_MAX)
+ return -EINVAL;
+ sock = sockfd_lookup(fd, &err);
if (sock) {
err = security_socket_setsockopt(sock, level, optname);
if (err) {