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copyinargs: Redo previous; if given fakearg is longer than arg buf (which is

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very unlikely to happen), there's no point to continue with truncated arg.
Just give up and return E2BIG.
This commit is contained in:
uebayasi 2014-04-14 13:14:38 +00:00
parent 3645dc518b
commit 3d725db397
1 changed files with 3 additions and 3 deletions
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6
sys/kern/kern_exec.c
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@ -1,4 +1,4 @@
/* $NetBSD: kern_exec.c,v 1.394 2014/04/14 05:39:19 uebayasi Exp $ */
/* $NetBSD: kern_exec.c,v 1.395 2014/04/14 13:14:38 uebayasi Exp $ */
/*-
* Copyright (c) 2008 The NetBSD Foundation, Inc.
@ -59,7 +59,7 @@
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: kern_exec.c,v 1.394 2014/04/14 05:39:19 uebayasi Exp $");
__KERNEL_RCSID(0, "$NetBSD: kern_exec.c,v 1.395 2014/04/14 13:14:38 uebayasi Exp $");
#include "opt_exec.h"
#include "opt_execfmt.h"
@ -1423,7 +1423,7 @@ copyinargs(struct execve_data * restrict data, char * const *args,
if (len < maxlen)
len++;
else
len = maxlen;
return E2BIG;
ktrexecarg(tmpfap->fa_arg, len - 1);
dp += len;