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* pthread_attr_setschedparam.c (__pthread_attr_setschedparam):

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Check policy and priority for validity.
	Patch mostly by Zhang Xiliang <zhangxiliang@cn.fujitsu.com>.
This commit is contained in:
Ulrich Drepper
2009-04-23 02:29:18 +00:00
parent debafa10bc
commit d301a6e167
2 changed files with 13 additions and 1 deletions
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8
nptl/pthread_attr_setschedparam.c
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@ -1,4 +1,4 @@
/* Copyright (C) 2002, 2004 Free Software Foundation, Inc.
/* Copyright (C) 2002, 2004, 2009 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Ulrich Drepper <drepper@redhat.com>, 2002.
@ -31,6 +31,12 @@ __pthread_attr_setschedparam (attr, param)
assert (sizeof (*attr) >= sizeof (struct pthread_attr));
struct pthread_attr *iattr = (struct pthread_attr *) attr;
int min = sched_get_priority_min (iattr->schedpolicy);
int max = sched_get_priority_max (iattr->schedpolicy);
if (min == -1 || max == -1
|| param->sched_priority > max || param->sched_priority < min)
return EINVAL;
/* Copy the new values. */
memcpy (&iattr->schedparam, param, sizeof (struct sched_param));