Fix sanitize or Context Rule

Fixes https://github.com/harfbuzz/harfbuzz/issues/1110
2018-09-10 15:45:32 +02:00 · 2018-09-10 15:45:32 +02:00 · 5dfd6e0762
commit 5dfd6e0762
parent 20a11a824d
1 changed files with 1 additions and 1 deletions
--- a/src/hb-ot-layout-gsubgpos.hh
+++ b/src/hb-ot-layout-gsubgpos.hh
@ -1267,7 +1267,7 @@ struct Rule
    return_trace (inputCount.sanitize (c) &&
 		  lookupCount.sanitize (c) &&
 		  c->check_range (inputZ,
-				  inputZ[0].static_size * inputCount +
+				  inputZ[0].static_size * (inputCount ? inputCount - 1 : 0) +
 				  LookupRecord::static_size * lookupCount));
  }