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| author | Miss Islington (bot) <31488909+miss-islington@users.noreply.github.com> | 2022-09-28 22:28:38 (GMT) |
|---|---|---|
| committer | Pablo Galindo <pablogsal@gmail.com> | 2022-10-24 15:45:40 (GMT) |
| commit | 38ade0d2aca25748207189b17323874cad183f78 (patch) | |
| tree | cea8d0e8ed67326a7b859990326b910454cba752 /Misc | |
| parent | 9c80b55ad69f67e3507c0185e07b98af35dc7239 (diff) | |
| download | cpython-38ade0d2aca25748207189b17323874cad183f78.zip cpython-38ade0d2aca25748207189b17323874cad183f78.tar.gz cpython-38ade0d2aca25748207189b17323874cad183f78.tar.bz2 | |
gh-97616: list_resize() checks for integer overflow (GH-97617)
Fix multiplying a list by an integer (list *= int): detect the
integer overflow when the new allocated length is close to the
maximum size. Issue reported by Jordan Limor.
list_resize() now checks for integer overflow before multiplying the
new allocated length by the list item size (sizeof(PyObject*)).
(cherry picked from commit a5f092f3c469b674b8d9ccbd4e4377230c9ac7cf)
Co-authored-by: Victor Stinner <vstinner@python.org>
Diffstat (limited to 'Misc')
| -rw-r--r-- | Misc/NEWS.d/next/Security/2022-09-28-17-09-37.gh-issue-97616.K1e3Xs.rst | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/Misc/NEWS.d/next/Security/2022-09-28-17-09-37.gh-issue-97616.K1e3Xs.rst b/Misc/NEWS.d/next/Security/2022-09-28-17-09-37.gh-issue-97616.K1e3Xs.rst new file mode 100644 index 0000000..721427f --- /dev/null +++ b/Misc/NEWS.d/next/Security/2022-09-28-17-09-37.gh-issue-97616.K1e3Xs.rst @@ -0,0 +1,3 @@ +Fix multiplying a list by an integer (``list *= int``): detect the integer +overflow when the new allocated length is close to the maximum size. Issue +reported by Jordan Limor. Patch by Victor Stinner. |