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[gvar] Make sure TupleVarHeader has the needed size 

Fixes https://crbug.com/oss-fuzz/21026
This commit is contained in:
Ebrahim Byagowi 2020-03-04 11:15:46 +03:30
parent b398748d8b
commit 99b5b3f1b1
2 changed files with 1 additions and 1 deletions
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2
src/hb-ot-var-gvar-table.hh
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@ -229,7 +229,7 @@ struct GlyphVarData
{ {
return (index < var_data->tupleVarCount.get_count ()) && return (index < var_data->tupleVarCount.get_count ()) &&
var_data_bytes.check_range (current_tuple, TupleVarHeader::min_size) && var_data_bytes.check_range (current_tuple, TupleVarHeader::min_size) &&
var_data_bytes.check_range (current_tuple, current_tuple->get_data_size ()) && var_data_bytes.check_range (current_tuple, hb_max (current_tuple->get_data_size (), current_tuple->get_size (axis_count))) &&
current_tuple->get_size (axis_count); current_tuple->get_size (axis_count);
} }

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