From ab02c3fec499e89e09b0f024ef263821e4b5d918 Mon Sep 17 00:00:00 2001
From: Heinrich Schuchardt <xypron.glpk@gmx.de>
Date: Mon, 2 Nov 2020 19:32:24 +0100
Subject: [PATCH] efi_loader: non-volatile variable not deleted from file
When deleting a non-volatile variable it was deleted from memory but the
deletion was not persisted to the file system.
SetVariable() may be called with attributes == 0 to delete a variable. To
determine if the deletion shall be persisted we have to consider the
non-volatile flag in the attributes of the deleted variable and not the
value passed in the call parameter.
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
---
lib/efi_loader/efi_variable.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/lib/efi_loader/efi_variable.c b/lib/efi_loader/efi_variable.c
index a10b9caa8b..0c689cfb47 100644
--- a/lib/efi_loader/efi_variable.c
+++ b/lib/efi_loader/efi_variable.c
@@ -393,6 +393,7 @@ efi_status_t efi_set_variable_int(u16 *variable_name, const efi_guid_t *vendor,
if (delete) {
/* EFI_NOT_FOUND has been handled before */
+ attributes = var->attr;
ret = EFI_SUCCESS;
} else if (append) {
u16 *old_data = var->name;
--
2.39.5