diff -upr libcgroup-0.40.rc1.orig/src/api.c libcgroup-0.40.rc1/src/api.c

--- libcgroup-0.40.rc1.orig/src/api.c	2013-09-16 10:34:32.542272000 +0200

+++ libcgroup-0.40.rc1/src/api.c	2013-09-13 16:07:10.000000000 +0200

@@ -2237,29 +2237,29 @@ static int cg_rd_ctrl_file(const char *s

 					const char *file, char **value)

 {

 	char path[FILENAME_MAX];

-	FILE *ctrl_file = NULL;

-	int ret;

+	int ctrl_file = -1;

+	ssize_t ret;

 	if (!cg_build_path_locked(cgroup, path, subsys))

 		return ECGFAIL;

 	strncat(path, file, sizeof(path) - strlen(path));

-	ctrl_file = fopen(path, "re");

-	if (!ctrl_file)

+	ctrl_file = open(path, O_RDONLY | O_CLOEXEC);

+	if (ctrl_file < 0)

 		return ECGROUPVALUENOTEXIST;

 	*value = calloc(CG_VALUE_MAX, 1);

 	if (!*value) {

-		fclose(ctrl_file);

+		close(ctrl_file);

 		last_errno = errno;

 		return ECGOTHER;

 	}

 	/*

-	 * using %as crashes when we try to read from files like

+	 * using %as or fread crashes when we try to read from files like

 	 * memory.stat

 	 */

-	ret = fread(*value, 1, CG_VALUE_MAX-1, ctrl_file);

+	ret = read(ctrl_file, *value, CG_VALUE_MAX-1);

 	if (ret < 0) {

 		free(*value);

 		*value = NULL;

@@ -2269,7 +2269,7 @@ static int cg_rd_ctrl_file(const char *s

 			(*value)[ret-1] = '\0';

 	}

-	fclose(ctrl_file);

+	close(ctrl_file);

 	return 0;

 }