From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Werner Lemberg <wl@gnu.org>
Date: Sat, 19 Mar 2022 06:40:17 +0100
Subject: [PATCH] DO NOT MERGE - Cherry-pick two upstream changes

This cherry picks following two changes:

0c2bdb01a2e1d24a3e592377a6d0822856e10df2
22a0cccb4d9d002f33c1ba7a4b36812c7d4f46b5

Bug: 271680254
Test: N/A
(cherry picked from https://googleplex-android-review.googlesource.com/q/commit:4ffa271ab538f57b65a65d434a2df9d3f8cd2f4a)
(cherry picked from https://googleplex-android-review.googlesource.com/q/commit:b0f8930701bf19229075cc930ad15813ff5fb07b)
Merged-In: I42469df8e8b07221d64e3f8574c4f30110dbda7e
Change-Id: I42469df8e8b07221d64e3f8574c4f30110dbda7e
---
 src/base/ftobjs.c | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/src/base/ftobjs.c b/src/base/ftobjs.c
index 2b444056c..7fdf15372 100644
--- a/src/base/ftobjs.c
+++ b/src/base/ftobjs.c
@@ -2358,6 +2358,15 @@
 #endif
 
 
+    /* only use lower 31 bits together with sign bit */
+    if ( face_index > 0 )
+      face_index &= 0x7FFFFFFFL;
+    else
+    {
+      face_index &= 0x7FFFFFFFL;
+      face_index  = -face_index;
+    }
+
 #ifdef FT_DEBUG_LEVEL_TRACE
     FT_TRACE3(( "FT_Open_Face: " ));
     if ( face_index < 0 )
@@ -3213,6 +3222,9 @@
     if ( !face )
       return FT_THROW( Invalid_Face_Handle );
 
+    if ( !face->size )
+      return FT_THROW( Invalid_Size_Handle );
+
     if ( !req || req->width < 0 || req->height < 0 ||
          req->type >= FT_SIZE_REQUEST_TYPE_MAX )
       return FT_THROW( Invalid_Argument );