diff --git a/usr.sbin/bhyve/amd64/e820.c b/usr.sbin/bhyve/amd64/e820.c
--- a/usr.sbin/bhyve/amd64/e820.c
+++ b/usr.sbin/bhyve/amd64/e820.c
@@ -483,6 +483,8 @@
 	    e820_fwcfg_item->size, e820_fwcfg_item->data);
 	if (error != 0) {
 		warnx("could not add qemu fwcfg etc/e820");
+		free(e820_fwcfg_item->data);
+		free(e820_fwcfg_item);
 		return (error);
 	}
 	free(e820_fwcfg_item);