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Don't allow to use too big or too small shift operators

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Rafał Mikrut
2019-12-12 20:00:26 +01:00
parent 8eb183aebb
commit 162a64efcd
1 changed files with 4 additions and 0 deletions
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4
core/variant_op.cpp
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@@ -1118,6 +1118,8 @@ void Variant::evaluate(const Operator &p_op, const Variant &p_a,
CASE_TYPE(math, OP_SHIFT_LEFT, INT) { CASE_TYPE(math, OP_SHIFT_LEFT, INT) {
if (p_b.type != INT) if (p_b.type != INT)
_RETURN_FAIL; _RETURN_FAIL;
if (p_b._data._int < 0 || p_b._data._int >= 64)
_RETURN_FAIL;
_RETURN(p_a._data._int << p_b._data._int); _RETURN(p_a._data._int << p_b._data._int);
} }
@@ -1129,6 +1131,8 @@ void Variant::evaluate(const Operator &p_op, const Variant &p_a,
CASE_TYPE(math, OP_SHIFT_RIGHT, INT) { CASE_TYPE(math, OP_SHIFT_RIGHT, INT) {
if (p_b.type != INT) if (p_b.type != INT)
_RETURN_FAIL; _RETURN_FAIL;
if (p_b._data._int < 0 || p_b._data._int >= 64)
_RETURN_FAIL;
_RETURN(p_a._data._int >> p_b._data._int); _RETURN(p_a._data._int >> p_b._data._int);
} }