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PyObject_GetBuffer() can execute user code (e.g. via __buffer__), which may close or otherwise mutate a BytesIO object while write() or writelines() is in progress. This could invalidate the internal buffer and lead to a use-after-free. Ensure that PyObject_GetBuffer() is called before validation checks. |
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| .. | ||
| clinic | ||
| _iomodule.c | ||
| _iomodule.h | ||
| bufferedio.c | ||
| bytesio.c | ||
| fileio.c | ||
| iobase.c | ||
| stringio.c | ||
| textio.c | ||
| winconsoleio.c | ||