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Sanitize (Headless)ArrayOf()::len to ensure it doesn't use offsets

This commit is contained in:
Behdad Esfahbod 2017-10-31 18:11:10 -06:00
parent 5f04711314
commit aca378f51e
1 changed files with 2 additions and 2 deletions
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4
src/hb-open-type-private.hh
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@ -946,7 +946,7 @@ struct ArrayOf
inline bool sanitize_shallow (hb_sanitize_context_t *c) const inline bool sanitize_shallow (hb_sanitize_context_t *c) const
{ {
TRACE_SANITIZE (this); TRACE_SANITIZE (this);
return_trace (c->check_struct (this) && c->check_array (array, Type::static_size, len)); return_trace (len.sanitize (c) && c->check_array (array, Type::static_size, len));
} }
public: public:
@ -1033,7 +1033,7 @@ struct HeadlessArrayOf
inline bool sanitize_shallow (hb_sanitize_context_t *c) const inline bool sanitize_shallow (hb_sanitize_context_t *c) const
{ {
TRACE_SANITIZE (this); TRACE_SANITIZE (this);
return_trace (c->check_struct (this) && return_trace (len.sanitize (c) &&
(!len || c->check_array (array, Type::static_size, len - 1))); (!len || c->check_array (array, Type::static_size, len - 1)));
} }