devdanzin/typeobject_bf_getbuffer.md

Created March 18, 2026 10:07

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typeobject.c: Buffer leak in slot_bf_getbuffer error path

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typeobject_bf_getbuffer.md

typeobject.c: Buffer leak in slot_bf_getbuffer error path

Summary

After PyObject_GetBuffer succeeds but PyObject_GC_New fails at line 11131, the acquired buffer is never released. buffer->obj left pointing at DECREF'd object. Requires OOM.

Fix

Add PyBuffer_Release(buffer); before goto fail; at line 11131.

devdanzin/typeobject_bf_getbuffer.md

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typeobject.c: Buffer leak in slot_bf_getbuffer error path

Summary

Fix