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Fix #72146: Integer overflow on substr_replace
Adding two `zend_long`s may overflow, and casting `size_t` to `zend_long` may truncate; we can avoid this here by enforcing unsigned arithmetic. Closes GH-7240.
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Original file line number | Diff line number | Diff line change |
---|---|---|
@@ -0,0 +1,11 @@ | ||
--TEST-- | ||
Bug #72146 (Integer overflow on substr_replace) | ||
--FILE-- | ||
<?php | ||
var_dump(substr_replace(["ABCDE"], "123", 3, PHP_INT_MAX)); | ||
?> | ||
--EXPECT-- | ||
array(1) { | ||
[0]=> | ||
string(6) "ABC123" | ||
} |