[3.6] bpo-25862: Fix several bugs in the _io module. (GH-8026) #8029
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They can be exposed when some C API calls fail due to lack of memory. * Failed Py_BuildValue() could cause an assertion error in the following TextIOWrapper.tell(). * input_chunk could be decrefed twice in TextIOWrapper.seek() after failed Py_BuildValue(). * initvalue could leak in StringIO.__getstate__() after failed PyDict_Copy(). (cherry picked from commit fdb5a50) Co-authored-by: Serhiy Storchaka <[email protected]>
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@serhiy-storchaka: Backport status check is done, and it's a success ✅ . |
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@serhiy-storchaka: Backport status check is done, and it's a success ✅ . |
serhiy-storchaka
approved these changes
Jun 30, 2018
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They can be exposed when some C API calls fail due to lack of
memory.
following TextIOWrapper.tell().
after failed Py_BuildValue().
PyDict_Copy().
(cherry picked from commit fdb5a50)
Co-authored-by: Serhiy Storchaka [email protected]
https://bugs.python.org/issue25862