Fix OSS-Fuzz #371445205: Heap-use-after-free in attr_free #16349
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zend_hash_get_current_key() does not return a string with incremented refcount, so it shouldn't get released. This release caused a UAF later when the attribute was destroyed. This wasn't noticed earlier because object_init_with_constructor() was only ever tested with interned strings.
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zend_hash_get_current_key() does not return a string with incremented refcount, so it shouldn't get released. This release caused a UAF later when the attribute was destroyed. This wasn't noticed earlier because object_init_with_constructor() was only ever tested with interned strings.
Link: https://issues.oss-fuzz.com/issues/371721670