From: Heinrich Schuchardt <xypron.glpk@gmx.de>
Date: Wed, 9 Jan 2019 20:41:13 +0000 (+0100)
Subject: efi_loader: fix CopyMem()
X-Git-Tag: v2019.04-rc2~13^2~26
X-Git-Url: https://git.librecmc.org/?a=commitdiff_plain;h=0bc81a717d1ce90008f9f8ae8b3c086d4405a295;p=oweals%2Fu-boot.git

efi_loader: fix CopyMem()

CopyMem() must support overlapping buffers. So replace memcpy() by
memmove().

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 88386ff676..dbf0d56c1d 100644
--- a/lib/efi_loader/efi_boottime.c
+++ b/lib/efi_loader/efi_boottime.c
@@ -2483,7 +2483,7 @@ static void EFIAPI efi_copy_mem(void *destination, const void *source,
 				size_t length)
 {
 	EFI_ENTRY("%p, %p, %ld", destination, source, (unsigned long)length);
-	memcpy(destination, source, length);
+	memmove(destination, source, length);
 	EFI_EXIT(EFI_SUCCESS);
 }