[subset] fix memory leak.

Fixes fuzzer issue https://oss-fuzz.com/testcase-detail/6169920089227264
2023-03-30 22:11:43 +00:00 · 2023-03-30 22:11:43 +00:00 · 2cd81fdfb6
parent 453ded0539
commit 2cd81fdfb6
2 changed files with 2 additions and 1 deletions
--- a/src/hb-subset-plan.cc
+++ b/src/hb-subset-plan.cc
@ -386,6 +386,7 @@ _collect_layout_variation_indices (hb_subset_plan_t* plan)
  if (collect_delta)
  {
    if (unlikely (!plan->check_success (font = _get_hb_font_with_variations (plan)))) {
+      hb_font_destroy (font);
      gdef.destroy ();
      gpos.destroy ();
      return;
--- a/test/fuzzing/fonts/clusterfuzz-testcase-minimized-hb-subset-fuzzer-6169920089227264
+++ b/test/fuzzing/fonts/clusterfuzz-testcase-minimized-hb-subset-fuzzer-6169920089227264