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Fatal Python error: none_dealloc: deallocating None Python runtime state: finalizing (tstate=0x000055c9bac70920) Current thread 0x00007fbe34e47740 (most recent call first): <no Python frame> Aborted (core dumped) This is caused by a missing Py_INCREF on the returned Py_None, as demonstrated e.g. in https://github.com/mythosil/swig-python-incref or described at https://edcjones.tripod.com/refcount.html ("Remember to INCREF Py_None!") A PoC for triggering this crash is uploaded to https://github.com/z3ntu/pylibfdt-crash . With this patch applied to pylibfdt the crash does not happen. Signed-off-by: Luca Weiss <luca@z3ntu.xyz> Message-Id: <20211224102811.70695-1-luca@z3ntu.xyz> Reviewed-by: Simon Glass <sjg@chromium.org> Signed-off-by: David Gibson <david@gibson.dropbear.id.au> |
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