Index: head/stand/efi/libefi/efihttp.c
===================================================================
--- head/stand/efi/libefi/efihttp.c
+++ head/stand/efi/libefi/efihttp.c
@@ -576,6 +576,14 @@
 	 */
 	err = _efihttp_fs_open(path, f);
 	if (err != 0) {
+		/*
+		 * Work around a bug in the EFI HTTP implementation which
+		 * causes a crash if the http instance isn't torn down
+		 * between requests.
+		 * See https://bugzilla.tianocore.org/show_bug.cgi?id=1917
+		 */
+		efihttp_dev_close(f);
+		efihttp_dev_open(f);
 		path_slash = malloc(strlen(path) + 2);
 		if (path_slash == NULL)
 			return (ENOMEM);
@@ -719,6 +727,14 @@
 		path = fh->path;
 		fh->path = NULL;
 		efihttp_fs_close(f);
+		/*
+		 * Work around a bug in the EFI HTTP implementation which
+		 * causes a crash if the http instance isn't torn down
+		 * between requests.
+		 * See https://bugzilla.tianocore.org/show_bug.cgi?id=1917
+		 */
+		efihttp_dev_close(f);
+		efihttp_dev_open(f);
 		err = efihttp_fs_open(path, f);
 		free(path);
 		if (err != 0)