from encode_int removed assert hit by fuzzer

clamp the value instead
6 years ago · b64ef69b9e
parent fc0153a1d4
commit b64ef69b9e
1 changed files with 4 additions and 1 deletions
--- a/src/hb-subset-cff-common.hh
+++ b/src/hb-subset-cff-common.hh
@ -59,7 +59,10 @@ struct ByteStrBuff : hb_vector_t<char, 1>
        return encode_byte ((v >> 8) + OpCode_TwoByteNegInt0) && encode_byte (v & 0xFF);
      }
    }
-    assert ((-32768 <= v) && (v <= 32767));
+    if (unlikely (v < -32768))
+      v = -32768;
+    else if (unlikely (v > 32767))
+      v = 32767;
    return encode_byte (OpCode_shortint) &&
           encode_byte ((v >> 8) & 0xFF) &&
           encode_byte (v & 0xFF);