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[subset] fixes https://oss-fuzz.com/testcase-detail/6173520787800064. 

Caused by incorrect bounds check in glyph closure for context lookups.
This commit is contained in:
Garret Rieger 2021-03-30 13:20:50 -07:00 committed by Behdad Esfahbod
parent 9f77a0c1ff
commit adca4ce071
2 changed files with 1 additions and 1 deletions
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2
src/hb-ot-layout-gsubgpos.hh
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@ -1248,7 +1248,7 @@ static void context_closure_recurse_lookups (hb_closure_context_t *c,
for (unsigned int i = 0; i < lookupCount; i++) for (unsigned int i = 0; i < lookupCount; i++)
{ {
unsigned seqIndex = lookupRecord[i].sequenceIndex; unsigned seqIndex = lookupRecord[i].sequenceIndex;
if (seqIndex > inputCount) continue; if (seqIndex >= inputCount) continue;
hb_set_t *pos_glyphs = hb_set_create (); hb_set_t *pos_glyphs = hb_set_create ();

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test/fuzzing/fonts/clusterfuzz-testcase-minimized-hb-subset-fuzzer-6173520787800064 Normal file
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