1 files changed, 29 insertions, 0 deletions
diff --git a/external/harfbuzz/62e803b36173fd096d7ad460dd1d1db9be542593.patch.1 b/external/harfbuzz/62e803b36173fd096d7ad460dd1d1db9be542593.patch.1
new file mode 100644
index 000000000000..2aef204a26e1
--- /dev/null
+++ b/external/harfbuzz/62e803b36173fd096d7ad460dd1d1db9be542593.patch.1
@@ -0,0 +1,29 @@
+From 62e803b36173fd096d7ad460dd1d1db9be542593 Mon Sep 17 00:00:00 2001
+From: Behdad Esfahbod <behdad@behdad.org>
+Date: Wed, 1 Jun 2022 07:38:21 -0600
+Subject: [PATCH] [sbix] Limit glyph extents
+
+Fixes https://github.com/harfbuzz/harfbuzz/issues/3557
+---
+ src/hb-ot-color-sbix-table.hh       |   6 ++++++
+ test/fuzzing/fonts/sbix-extents.ttf | Bin 0 -> 582 bytes
+ 2 files changed, 6 insertions(+)
+ create mode 100644 test/fuzzing/fonts/sbix-extents.ttf
+
+diff --git a/src/hb-ot-color-sbix-table.hh b/src/hb-ot-color-sbix-table.hh
+index 9741ebd450..6efae43cda 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;