1 files changed, 5 insertions, 1 deletions
diff --git a/vendor/golang.org/x/net/internal/socket/msghdr_openbsd.go b/vendor/golang.org/x/net/internal/socket/msghdr_openbsd.go
index be354ff84..71a69e251 100644
--- a/vendor/golang.org/x/net/internal/socket/msghdr_openbsd.go
+++ b/vendor/golang.org/x/net/internal/socket/msghdr_openbsd.go
@@ -5,6 +5,10 @@
 package socket
 
 func (h *msghdr) setIov(vs []iovec) {
+	l := len(vs)
+	if l == 0 {
+		return
+	}
 	h.Iov = &vs[0]
-	h.Iovlen = uint32(len(vs))
+	h.Iovlen = uint32(l)
 }