Keep compiled RuleBasedBreakIterator rules alive for the iterator - #233
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iliaal wants to merge 1 commit into
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Keep compiled RuleBasedBreakIterator rules alive for the iterator#233iliaal wants to merge 1 commit into
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The ICU compiled-rules constructor aliases the caller's buffer (kDontAdopt). PHP passed ZSTR_VAL of a temporary and did not retain it, so a later setText/next can use freed memory. Hold a zend_string copy on the object and release it in free_obj; clone addrefs it.
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Promoted: php#23322 |
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ICU's compiled-rules constructor aliases the caller buffer. PHP passed a temporary string and did not keep it, so setText/next after that string is released can use freed memory. The object now holds a zend_string copy, released in free_obj and addref'd on clone.