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Title: Wrapping a Pointer where auto_dealloc is True with another Pointer will cause double free. · Issue #492 · Source-Python-Dev-Team/Source.Python · GitHub

Open Graph Title: Wrapping a Pointer where auto_dealloc is True with another Pointer will cause double free. · Issue #492 · Source-Python-Dev-Team/Source.Python

X Title: Wrapping a Pointer where auto_dealloc is True with another Pointer will cause double free. · Issue #492 · Source-Python-Dev-Team/Source.Python

Description: Code: from memory import Pointer from memory import alloc def test_pointer(): ptr = alloc(4) Pointer(ptr) test_pointer() Output: free(): double free detected in tcache 2 This also applies to CustomType. Code: from memory import alloc fro...

Open Graph Description: Code: from memory import Pointer from memory import alloc def test_pointer(): ptr = alloc(4) Pointer(ptr) test_pointer() Output: free(): double free detected in tcache 2 This also applies to Custom...

X Description: Code: from memory import Pointer from memory import alloc def test_pointer(): ptr = alloc(4) Pointer(ptr) test_pointer() Output: free(): double free detected in tcache 2 This also applies to Custom...

Opengraph URL: https://github.com/Source-Python-Dev-Team/Source.Python/issues/492

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{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"Wrapping a Pointer where auto_dealloc is True with another Pointer will cause double free.","articleBody":"Code:\r\n```python\r\nfrom memory import Pointer\r\nfrom memory import alloc\r\n\r\ndef test_pointer():\r\n    ptr = alloc(4)\r\n    Pointer(ptr)\r\n\r\ntest_pointer()\r\n```\r\nOutput:\r\n```\r\nfree(): double free detected in tcache 2\r\n```\r\n\r\nThis also applies to `CustomType`.\r\n\r\nCode:\r\n```python\r\nfrom memory import alloc\r\nfrom memory import make_object\r\nfrom memory.manager import CustomType\r\nfrom memory.manager import TypeManager\r\n\r\nmanager = TypeManager()\r\n\r\nclass Test(CustomType, metaclass=manager):\r\n    _size = 4\r\n\r\ndef test_customtype():\r\n    ptr = alloc(4)\r\n    make_object(Test, ptr)\r\n\r\ntest_customtype()\r\n```\r\nOutput:\r\n```\r\nfree(): double free detected in tcache 2\r\n```","author":{"url":"https://github.com/CookStar","@type":"Person","name":"CookStar"},"datePublished":"2023-08-23T06:14:58.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":0},"url":"https://github.com/492/Source.Python/issues/492"}

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