[syslinux:master] comboot.inc: vk_append is a field in a struct, not an address

[syslinux-bot for H. Peter Anvin]

Commit-ID:  ff07f39d96d765d0ebec72fc02044707d217d90c
Gitweb:     http://syslinux.zytor.com/commit/ff07f39d96d765d0ebec72fc02044707d217d90c
Author:     H. Peter Anvin <hpa at linux.intel.com>
AuthorDate: Thu, 1 Jul 2010 17:59:30 -0700
Committer:  H. Peter Anvin <hpa at linux.intel.com>
CommitDate: Thu, 1 Jul 2010 18:01:58 -0700

comboot.inc: vk_append is a field in a struct, not an address

We want to use VKernelBuf as temporary storage, not vk_append.
vk_append is an offset into a larger buffer, and we ended up
corrupting low BIOS memory.

Reported-by: Joseph Cihula <joseph.cihula at intel.com>
Signed-off-by: H. Peter Anvin <hpa at linux.intel.com>


---
 core/comboot.inc |    8 ++++----
 1 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/core/comboot.inc b/core/comboot.inc
index 65b20be..59db7ec 100644
--- a/core/comboot.inc
+++ b/core/comboot.inc
@@ -1,7 +1,7 @@
 ;; -----------------------------------------------------------------------
 ;;
 ;;   Copyright 1994-2009 H. Peter Anvin - All Rights Reserved
-;;   Copyright 2009 Intel Corporation; author: H. Peter Anvin
+;;   Copyright 2009-2010 Intel Corporation; author: H. Peter Anvin
 ;;
 ;;   This program is free software; you can redistribute it and/or modify
 ;;   it under the terms of the GNU General Public License as published by
@@ -753,11 +753,11 @@ comapi_runkernel:
 		; It's not just possible, but quite likely, that ES:BX
 		; points into real_mode_seg or xfer_buf_seg, so we
 		; need to exercise some special care here... use
-		; vk_append for temporary storage.
+		; VKernelBuf for temporary storage.
 		push ds
 		mov ds,P_ES
 		mov si,P_BX
-		mov di,vk_append
+		mov di,VKernelBuf
 		call strcpy
 		pop ds
 
@@ -786,7 +786,7 @@ comapi_runkernel:
 		push es
 		mov dx,real_mode_seg
 		mov es,dx
-		mov si,vk_append
+		mov si,VKernelBuf
 		mov di,cmd_line_here
 		call strcpy
 		mov word [es:di-1],' '	; Simulate APPEND: space plus null