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Title: gh-151773: NULL-check token_new() in PyContextVar_Set by bhuvi27 · Pull Request #151836 · python/cpython · GitHub

Open Graph Title: gh-151773: NULL-check token_new() in PyContextVar_Set by bhuvi27 · Pull Request #151836 · python/cpython

X Title: gh-151773: NULL-check token_new() in PyContextVar_Set by bhuvi27 · Pull Request #151836 · python/cpython

Description: Fixes #151773. token_new() can return NULL on OOM, but PyContextVar_Set went straight into contextvar_set() and then Py_DECREF(tok) on the error path. Added an early return when tok is NULL. Issue: gh-151773

Open Graph Description: Fixes #151773. token_new() can return NULL on OOM, but PyContextVar_Set went straight into contextvar_set() and then Py_DECREF(tok) on the error path. Added an early return when tok is NULL. Issu...

X Description: Fixes #151773. token_new() can return NULL on OOM, but PyContextVar_Set went straight into contextvar_set() and then Py_DECREF(tok) on the error path. Added an early return when tok is NULL. Issu...

Opengraph URL: https://github.com/python/cpython/pull/151836

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aa34046 gh-151773: NULL-check token_new() in PyContextVar_Set bhuvi27 Jun 21, 2026 https://github.com/python/cpython/pull/151836/commits/aa34046ed5206eb47984d6218c64fd35f504a887
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