Bug description:

After in if body we use Py_DECREF(indent), which can cause null pointer dereference

CPython versions tested on:

CPython main branch

Operating systems tested on:

Other

Additional information

Found by Linux Verification Center (linuxtesting.org) with SVACE.

Reporter: Burkov Egor (eburkov@rvision.ru).

Organization: R-Vision (support@rvision.ru).

Linked PRs

• gh-129345: null check for indent syslogmodule #129348
• [3.13] gh-129345: null check for indent syslogmodule (GH-129348) #129442
• [3.12] gh-129345: null check for indent syslogmodule (GH-129348) #129443