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Title: bpo-29854: Fix segfault in call_readline() by nirs · Pull Request #728 · python/cpython · GitHub

Open Graph Title: bpo-29854: Fix segfault in call_readline() by nirs · Pull Request #728 · python/cpython

X Title: bpo-29854: Fix segfault in call_readline() by nirs · Pull Request #728 · python/cpython

Description: If history-length is set in .inputrc, and the history file is double the history size (or more), history_get(N) returns NULL, and python segfaults. Fix that by checking for NULL return value. It seems that the root cause is incorrect handling of bigger history in readline, but python should not segfault even if readline returns unexpected value.

Open Graph Description: If history-length is set in .inputrc, and the history file is double the history size (or more), history_get(N) returns NULL, and python segfaults. Fix that by checking for NULL return value. It se...

X Description: If history-length is set in .inputrc, and the history file is double the history size (or more), history_get(N) returns NULL, and python segfaults. Fix that by checking for NULL return value. It se...

Opengraph URL: https://github.com/python/cpython/pull/728

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61cd9a1 Allow setting environment for readline tests nirs May 19, 2017 https://github.com/python/cpython/pull/728/commits/61cd9a12522a51afc47c67e44468cbe66394cbb3
e6ea330 bpo-29854: Add failing test that crash readline nirs May 19, 2017 https://github.com/python/cpython/pull/728/commits/e6ea33038ba3ab2f5ba568393fa38315513372fa
9fcda61 bpo-29854: Fix segfault in call_readline() nirs Mar 19, 2017 https://github.com/python/cpython/pull/728/commits/9fcda6152b42f0969ad13555e554a4daa5896aea
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