gh-150372: add missing null check on completer_word_break_characters in readline.c#150251
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serhiy-storchaka merged 7 commits intoMay 30, 2026
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KowalskiThomas
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strdup
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Please create both an issue and a NEWS entry and update the PR title. It does not indicate what the change is about and is a poor commit message. |
KowalskiThomas
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strdupstrdup
KowalskiThomas
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strdupcompleter_word_break_characters
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completer_word_break_characterscompleter_word_break_characters in readline.c
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vstinner
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May 28, 2026
| @@ -0,0 +1,3 @@ | |||
| Fix missing null check on the result of :func:`!strdup` in | |||
| :mod:`readline` module initialization, preventing a potential null pointer | |||
| dereference on memory allocation failure. | |||
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Suggested change
| dereference on memory allocation failure. | |
| :mod:`readline`: Fix missing null check on the result of :func:`!strdup` | |
| in module initialization, preventing a potential null pointer |
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I applied the suggestion but I think it resulted in a borked news entry so I fixed it up myself.
Should be good I believe, I'll let you double check.
vstinner
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needs backport to 3.13
…150372.9hLqhe.rst Co-authored-by: Victor Stinner <vstinner@python.org>
sergey-miryanov
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May 30, 2026
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Thanks @KowalskiThomas for the PR, and @serhiy-storchaka for merging it 🌮🎉.. I'm working now to backport this PR to: 3.13, 3.14, 3.15. |
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GH-150628 is a backport of this pull request to the 3.15 branch. |
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GH-150629 is a backport of this pull request to the 3.14 branch. |
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GH-150630 is a backport of this pull request to the 3.13 branch. |
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What is this PR?
This adds a missing null pointer check on the result of an
strdupcall used to populatecompleter_word_break_characters. This matches what the remainder of the files does (so I assume this wasn't on purpose / being optimistic aboutstrdup).readlineis missing a null pointer check onstrdupreturn value #150372