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Linux enforces CLONE_VM if CLONE_SIGHAND in clone(2) is specified, 

follow the suit - this is intended to be Linux-compatible call
This commit is contained in:
jdolecek 2004-08-08 11:02:10 +00:00
parent 142def6b36
commit 9aba366e0b
1 changed files with 9 additions and 2 deletions
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11
sys/kern/kern_fork.c
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@ -1,4 +1,4 @@
/* $NetBSD: kern_fork.c,v 1.117 2004/08/08 11:00:05 jdolecek Exp $ */
/* $NetBSD: kern_fork.c,v 1.118 2004/08/08 11:02:10 jdolecek Exp $ */
/*-
* Copyright (c) 1999, 2001 The NetBSD Foundation, Inc.
@ -74,7 +74,7 @@
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: kern_fork.c,v 1.117 2004/08/08 11:00:05 jdolecek Exp $");
__KERNEL_RCSID(0, "$NetBSD: kern_fork.c,v 1.118 2004/08/08 11:02:10 jdolecek Exp $");
#include "opt_ktrace.h"
#include "opt_systrace.h"
@ -165,6 +165,13 @@ sys___clone(struct lwp *l, void *v, register_t *retval)
if (SCARG(uap, flags) & (CLONE_PID|CLONE_PTRACE))
return (EINVAL);
/*
* Linux enforces CLONE_VM with CLONE_SIGHAND, do same.
*/
if (SCARG(uap, flags) & CLONE_SIGHAND
&& (SCARG(uap, flags) & CLONE_VM) == 0)
return (EINVAL);
flags = 0;
if (SCARG(uap, flags) & CLONE_VM)