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Fix collect lookups logic of FeatureTableSubstitution (#2097) 

https://crbug.com/oss-fuzz/20036
This commit is contained in:
Ebrahim Byagowi 2020-01-12 14:21:29 +03:30 committed by GitHub
parent a32ecc15ae
commit dc03a993d0
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2 changed files with 3 additions and 3 deletions
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6
src/hb-ot-layout-common.hh
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@ -2299,9 +2299,9 @@ struct FeatureTableSubstitutionRecord
{ {
friend struct FeatureTableSubstitution; friend struct FeatureTableSubstitution;
void collect_lookups (hb_set_t *lookup_indexes /* OUT */) const void collect_lookups (const void *base, hb_set_t *lookup_indexes /* OUT */) const
{ {
return (this+feature).add_lookup_indexes_to (lookup_indexes); return (base+feature).add_lookup_indexes_to (lookup_indexes);
} }
bool sanitize (hb_sanitize_context_t *c, const void *base) const bool sanitize (hb_sanitize_context_t *c, const void *base) const
@ -2338,7 +2338,7 @@ struct FeatureTableSubstitution
| hb_filter (feature_indexes, &FeatureTableSubstitutionRecord::featureIndex) | hb_filter (feature_indexes, &FeatureTableSubstitutionRecord::featureIndex)
| hb_apply ([=] (const FeatureTableSubstitutionRecord& r) | hb_apply ([=] (const FeatureTableSubstitutionRecord& r)
{ {
r.collect_lookups (lookup_indexes); r.collect_lookups (this, lookup_indexes);
}) })
; ;
} }

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test/fuzzing/fonts/clusterfuzz-testcase-minimized-hb-subset-fuzzer-5715299773186048 Normal file
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