From: Heinrich Schuchardt <xypron.glpk@gmx.de>
Date: Fri, 11 May 2018 10:09:21 +0000 (+0200)
Subject: efi_loader: check interface when uninstalling protocol
X-Git-Tag: v2018.07-rc1~10^2~18
X-Git-Url: https://git.librecmc.org/?a=commitdiff_plain;h=1f470e1790e7303d0fcd6592f79f6e9888be3f12;p=oweals%2Fu-boot.git

efi_loader: check interface when uninstalling protocol

The interface has to be checked in UninstallProtocolInterface.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Signed-off-by: Alexander Graf <agraf@suse.de>
---

diff --git a/lib/efi_loader/efi_boottime.c b/lib/efi_loader/efi_boottime.c
index 862ba11728..91c923f560 100644
--- a/lib/efi_loader/efi_boottime.c
+++ b/lib/efi_loader/efi_boottime.c
@@ -493,6 +493,8 @@ efi_status_t efi_remove_protocol(const efi_handle_t handle,
 		return ret;
 	if (guidcmp(handler->guid, protocol))
 		return EFI_INVALID_PARAMETER;
+	if (handler->protocol_interface != protocol_interface)
+		return EFI_INVALID_PARAMETER;
 	list_del(&handler->link);
 	free(handler);
 	return EFI_SUCCESS;