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Fix off-by-one in kobj_read range checking for case KT_MEMORY

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This commit is contained in:
jmcneill 2008-01-06 15:13:07 +00:00
parent b9e6d93835
commit bf49138bfc
1 changed files with 3 additions and 3 deletions
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6
sys/kern/subr_kobj.c
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@ -1,4 +1,4 @@
/* $NetBSD: subr_kobj.c,v 1.3 2008/01/06 14:47:26 ad Exp $ */
/* $NetBSD: subr_kobj.c,v 1.4 2008/01/06 15:13:07 jmcneill Exp $ */
/*-
* Copyright (c) 2008 The NetBSD Foundation, Inc.
@ -67,7 +67,7 @@
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: subr_kobj.c,v 1.3 2008/01/06 14:47:26 ad Exp $");
__KERNEL_RCSID(0, "$NetBSD: subr_kobj.c,v 1.4 2008/01/06 15:13:07 jmcneill Exp $");
#define ELFSIZE ARCH_ELFSIZE
@ -961,7 +961,7 @@ kobj_read(kobj_t ko, void *base, size_t size, off_t off)
}
break;
case KT_MEMORY:
if (ko->ko_memsize != -1 && off + size >= ko->ko_memsize) {
if (ko->ko_memsize != -1 && off + size > ko->ko_memsize) {
kobj_error("kobj_read: preloaded object short");
error = EINVAL;
} else {