Index: usr.sbin/bhyve/pci_nvme.c
===================================================================
--- usr.sbin/bhyve/pci_nvme.c
+++ usr.sbin/bhyve/pci_nvme.c
@@ -254,6 +254,13 @@
 cpywithpad(char *dst, int dst_size, const char *src, char pad)
 {
 	int len = strnlen(src, dst_size);
+	int i;
+
+	for (i = 0; i < dst_size; i++) {
+		if (src[i] == '\0')
+			break;
+	}
+
 	memcpy(dst, src, len);
 	memset(dst + len, pad, dst_size - len);
 }