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Use copyout to copy data from kernel out to userland!

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Fixes PR kern/47217.
This commit is contained in:
martin 2012-11-19 15:01:17 +00:00
parent f854d6154e
commit daab85cca7
1 changed files with 9 additions and 4 deletions
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13
sys/kern/vfs_syscalls.c
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@ -1,4 +1,4 @@
/* $NetBSD: vfs_syscalls.c,v 1.460 2012/11/18 17:41:53 manu Exp $ */
/* $NetBSD: vfs_syscalls.c,v 1.461 2012/11/19 15:01:17 martin Exp $ */
/*-
* Copyright (c) 2008, 2009 The NetBSD Foundation, Inc.
@ -70,7 +70,7 @@
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: vfs_syscalls.c,v 1.460 2012/11/18 17:41:53 manu Exp $");
__KERNEL_RCSID(0, "$NetBSD: vfs_syscalls.c,v 1.461 2012/11/19 15:01:17 martin Exp $");
#ifdef _KERNEL_OPT
#include "opt_fileassoc.h"
@ -3115,14 +3115,19 @@ sys_fstatat(struct lwp *l, const struct sys_fstatat_args *uap,
syscallarg(int) flag;
} */
unsigned int nd_flag;
struct stat sb;
int error;
if (SCARG(uap, flag) & AT_SYMLINK_NOFOLLOW)
nd_flag = NOFOLLOW;
else
nd_flag = FOLLOW;
return do_sys_statat(l, SCARG(uap, fd), SCARG(uap, path), nd_flag,
SCARG(uap, buf));
error = do_sys_statat(l, SCARG(uap, fd), SCARG(uap, path), nd_flag,
&sb);
if (error)
return error;
return copyout(&sb, SCARG(uap, buf), sizeof(sb));
}
/*