Fix uaf of MBSTRG(all_encodings_list) #11822
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Thanks very much, @iluuu1994! |
alexdowad
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Jul 29, 2023
iluuu1994
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Jul 31, 2023
We need to remove the value from the GC buffer before freeing it. Otherwise shutdown will uaf when running the gc. Do that by switching from zend_hash_destroy to zend_array_destroy, which should also be faster for freeing members due to inlining of i_zval_ptr_dtor.
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Aug 16, 2023
We need to remove the value from the GC buffer before freeing it. Otherwise shutdown will uaf when running the gc. Do that by switching from zend_hash_destroy to zend_array_destroy, which should also be faster for freeing members due to inlining of i_zval_ptr_dtor. Closes phpGH-11822
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We need to remove the value from the GC buffer before freeing it. Otherwise shutdown will uaf when running the gc.