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reflection: check for valid union enum value during object verification (#5475)

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... to avoid assertion failure or invalid access due to invalid vector index
This commit is contained in:
Mark Nauwelaerts
2019-08-19 21:48:25 +02:00
committed by Wouter van Oortmerssen
parent a20e71ac96
commit a2485d4ecc
1 changed files with 1 additions and 0 deletions
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src/reflection.cpp
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@@ -656,6 +656,7 @@ bool VerifyObject(flatbuffers::Verifier &v, const reflection::Schema &schema,
if (utype != 0) {
// Means we have this union field present
auto fb_enum = schema.enums()->Get(field_def->type()->index());
if (utype >= fb_enum->values()->size()) return false;
auto child_obj = fb_enum->values()->Get(utype)->object();
if (!VerifyObject(v, schema, *child_obj,
flatbuffers::GetFieldT(*table, *field_def),