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linux_sys_mremap: validate flags.

This commit is contained in:
yamt 2006-01-31 14:02:55 +00:00
parent d9b9d1ddc8
commit cab41a8b8a
1 changed files with 10 additions and 2 deletions
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12
sys/compat/linux/common/linux_misc.c
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@ -1,4 +1,4 @@
/* $NetBSD: linux_misc.c,v 1.148 2006/01/21 13:34:15 yamt Exp $ */
/* $NetBSD: linux_misc.c,v 1.149 2006/01/31 14:02:55 yamt Exp $ */
/*-
* Copyright (c) 1995, 1998, 1999 The NetBSD Foundation, Inc.
@ -64,7 +64,7 @@
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: linux_misc.c,v 1.148 2006/01/21 13:34:15 yamt Exp $");
__KERNEL_RCSID(0, "$NetBSD: linux_misc.c,v 1.149 2006/01/31 14:02:55 yamt Exp $");
#include <sys/param.h>
#include <sys/systm.h>
@ -624,7 +624,15 @@ linux_sys_mremap(l, v, retval)
oldva = (vaddr_t)SCARG(uap, old_address);
oldsize = round_page(SCARG(uap, old_size));
newsize = round_page(SCARG(uap, new_size));
if ((flags & ~(LINUX_MREMAP_FIXED|LINUX_MREMAP_MAYMOVE)) != 0) {
error = EINVAL;
goto done;
}
if ((flags & LINUX_MREMAP_FIXED) != 0) {
if ((flags & LINUX_MREMAP_MAYMOVE) == 0) {
error = EINVAL;
goto done;
}
#if 0 /* notyet */
newva = SCARG(uap, new_address);
uvmflags = UVM_MREMAP_FIXED;