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-rw-r--r--Build/source/libs/harfbuzz/harfbuzz-src/src/hb-ot-color-sbix-table.hh6
1 files changed, 6 insertions, 0 deletions
diff --git a/Build/source/libs/harfbuzz/harfbuzz-src/src/hb-ot-color-sbix-table.hh b/Build/source/libs/harfbuzz/harfbuzz-src/src/hb-ot-color-sbix-table.hh
index 9741ebd4503..d0e2235fb2f 100644
--- a/Build/source/libs/harfbuzz/harfbuzz-src/src/hb-ot-color-sbix-table.hh
+++ b/Build/source/libs/harfbuzz/harfbuzz-src/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;