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_struct.c: Fix UB from integer overflow inprepare_s#145158
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gpshead merged 2 commits intopython:mainfromFeb 24, 2026
Merged
_struct.c: Fix UB from integer overflow inprepare_s#145158gpshead merged 2 commits intopython:mainfrom
_struct.c: Fix UB from integer overflow inprepare_s#145158gpshead merged 2 commits intopython:mainfrom
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gpshead approved these changesFeb 23, 2026
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gpshead commentedFeb 23, 2026
I suggest adding a one line news entry. |
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StanFromIreland commentedFeb 23, 2026
Done, I used the PR number instead of creating an issue. |
gpshead approved these changesFeb 24, 2026
fd04005 intopython:main 49 checks passed
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Thanks@StanFromIreland for the PR, and@gpshead for merging it 🌮🎉.. I'm working now to backport this PR to: 3.13, 3.14. |
miss-islington pushed a commit to miss-islington/cpython that referenced this pull requestFeb 24, 2026
GH-145162 is a backport of this pull request to the3.14 branch. |
miss-islington pushed a commit to miss-islington/cpython that referenced this pull requestFeb 24, 2026
GH-145163 is a backport of this pull request to the3.13 branch. |
gpshead pushed a commit that referenced this pull requestFeb 24, 2026
…45158) (#145163)`_struct.c`: Fix UB from integer overflow in `prepare_s` (GH-145158)Avoid possible undefined behaviour from signed overflow in `struct` moduleAs discovered via oss-fuzz.(cherry picked from commitfd04005)Co-authored-by: Stan Ulbrych <89152624+StanFromIreland@users.noreply.github.com>
gpshead pushed a commit that referenced this pull requestFeb 24, 2026
…45158) (#145162)`_struct.c`: Fix UB from integer overflow in `prepare_s` (GH-145158)Avoid possible undefined behaviour from signed overflow in `struct` moduleAs discovered via oss-fuzz.(cherry picked from commitfd04005)Co-authored-by: Stan Ulbrych <89152624+StanFromIreland@users.noreply.github.com>
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Caught by OSS-Fuzz, seehttps://issues.oss-fuzz.com/issues/466669135.
Skipping news, since there shouldn't be any user-visible change, although I can add one if people prefer.