* pthread_attr_setschedparam.c (__pthread_attr_setschedparam):

	Check policy and priority for validity.
	Patch mostly by Zhang Xiliang <zhangxiliang@cn.fujitsu.com>.

1 files changed, 7 insertions, 1 deletions

diff --git a/nptl/pthread_attr_setschedparam.c b/nptl/pthread_attr_setschedparam.c
index 976ad13873..b4d4bbe055 100644
--- a/nptl/pthread_attr_setschedparam.c
+++ b/nptl/pthread_attr_setschedparam.c
@@ -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));