Module Name: src
Committed By: maxv
Date: Sat Oct 21 08:27:19 UTC 2017
Modified Files:
src/sys/arch/x86/x86: sys_machdep.c
Log Message:
Forbid 64bit entries. That's it, now we support USER_LDT on amd64.
To generate a diff of this commit:
cvs rdiff -u -r1.42 -r1.43 src/sys/arch/x86/x86/sys_machdep.c
Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.
Modified files:
Index: src/sys/arch/x86/x86/sys_machdep.c
diff -u src/sys/arch/x86/x86/sys_machdep.c:1.42 src/sys/arch/x86/x86/sys_machdep.c:1.43
--- src/sys/arch/x86/x86/sys_machdep.c:1.42 Sat Oct 21 06:55:54 2017
+++ src/sys/arch/x86/x86/sys_machdep.c Sat Oct 21 08:27:19 2017
@@ -1,4 +1,4 @@
-/* $NetBSD: sys_machdep.c,v 1.42 2017/10/21 06:55:54 maxv Exp $ */
+/* $NetBSD: sys_machdep.c,v 1.43 2017/10/21 08:27:19 maxv Exp $ */
/*
* Copyright (c) 1998, 2007, 2009, 2017 The NetBSD Foundation, Inc.
@@ -30,7 +30,7 @@
*/
#include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: sys_machdep.c,v 1.42 2017/10/21 06:55:54 maxv Exp $");
+__KERNEL_RCSID(0, "$NetBSD: sys_machdep.c,v 1.43 2017/10/21 08:27:19 maxv Exp $");
#include "opt_mtrr.h"
#include "opt_pmc.h"
@@ -249,6 +249,11 @@ x86_set_ldt1(struct lwp *l, struct x86_s
for (i = 0; i < ua->num; i++) {
union descriptor *desc = &descv[i];
+#ifdef __x86_64__
+ if (desc->sd.sd_long != 0)
+ return EACCES;
+#endif
+
switch (desc->sd.sd_type) {
case SDT_SYSNULL:
desc->sd.sd_p = 0;
