From 865a303517b023cf0d81a49c4614fa01b592510e Mon Sep 17 00:00:00 2001
From: wanghao-free <wanghao453@h-partners.com>
Date: Mon, 13 Mar 2023 01:21:59 -0700
Subject: [PATCH] fix CVE-2022-33068 Description: Limit glyph extents IssueNo:
 https://gitee.com/openharmony/third_party_harfbuzz/issues/I63NCG Feature or
 Bugfix: Bugfix Binary Source:No

Signed-off-by: wanghao-free <wanghao453@h-partners.com>
---
 src/hb-ot-color-sbix-table.hh | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/src/hb-ot-color-sbix-table.hh b/src/hb-ot-color-sbix-table.hh
index af1e4a5d..e085ee0d 100644
--- a/src/hb-ot-color-sbix-table.hh
+++ b/src/hb-ot-color-sbix-table.hh
@@ -298,6 +298,12 @@ struct sbix
 
       const PNGHeader &png = *blob->as<PNGHeader>();
 
+      if ((png.IHDR.height >= 65536) | (png.IHDR.width >= 65536))
+      {
+        hb_blob_destroy (blob);
+        return false;
+      }
+
       extents->x_bearing = x_offset;
       extents->y_bearing = png.IHDR.height + y_offset;
       extents->width     = png.IHDR.width;
-- 
Gitee