Use _cairo_malloc instead of malloc

_cairo_malloc(0) always returns NULL, but has not been used
consistently.  This patch replaces many calls to malloc() with
_cairo_malloc().

Fixes:  fdo# 101547
CVE: CVE-2017-9814 Heap buffer overflow at cairo-truetype-subset.c:1299
Reviewed-by: Bryce Harrington <bryce@osg.samsung.com>

1 files changed, 2 insertions, 2 deletions

diff --git a/src/cairo-font-face-twin.c b/src/cairo-font-face-twin.c
index 2ad263028..a0855c9f6 100644
--- a/src/cairo-font-face-twin.c
+++ b/src/cairo-font-face-twin.c
@@ -288,7 +288,7 @@ twin_font_face_create_properties (cairo_font_face_t *twin_face)
 {
     twin_face_properties_t *props;
 
-    props = malloc (sizeof (twin_face_properties_t));
+    props = _cairo_malloc (sizeof (twin_face_properties_t));
     if (unlikely (props == NULL))
 	return NULL;
 
@@ -412,7 +412,7 @@ twin_scaled_font_compute_properties (cairo_scaled_font_t *scaled_font,
     cairo_status_t status;
     twin_scaled_properties_t *props;
 
-    props = malloc (sizeof (twin_scaled_properties_t));
+    props = _cairo_malloc (sizeof (twin_scaled_properties_t));
     if (unlikely (props == NULL))
 	return _cairo_error (CAIRO_STATUS_NO_MEMORY);