1 files changed, 3 insertions, 1 deletions
diff --git a/input.c b/input.c
index b2d28386..dd22ac75 100644
--- a/input.c
+++ b/input.c
@@ -2842,9 +2842,11 @@ input_reply_clipboard(struct bufferevent *bev, const char *buf, size_t len,
     const char *end)
 {
 	char	*out = NULL;
-	size_t	 outlen = 0;
+	int	 outlen = 0;
 
 	if (buf != NULL && len != 0) {
+		if (len >= ((size_t)INT_MAX * 3 / 4) - 1)
+			return;
 		outlen = 4 * ((len + 2) / 3) + 1;
 		out = xmalloc(outlen);
 		if ((outlen = b64_ntop(buf, len, out, outlen)) == -1) {