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| author | Miss Islington (bot) <31488909+miss-islington@users.noreply.github.com> | 2022-08-11 09:19:20 (GMT) |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2022-08-11 09:19:20 (GMT) |
| commit | 1221e8c400933f24be69bd156f03cd1411746e6c (patch) | |
| tree | 82fe58c35f23faa0fd2ec10e608bf0db11daceee | |
| parent | 209f2a7b450648d6f24d84fd32f948f6a9f7c7ab (diff) | |
| download | cpython-1221e8c400933f24be69bd156f03cd1411746e6c.zip cpython-1221e8c400933f24be69bd156f03cd1411746e6c.tar.gz cpython-1221e8c400933f24be69bd156f03cd1411746e6c.tar.bz2 | |
gh-95876: Fix format string in pegen error location code (GH-95877)
(cherry picked from commit b4c857d0fd74abb1ede6fe083c4fa3ca728b2b83)
Co-authored-by: Christian Heimes <christian@python.org>
| -rw-r--r-- | Misc/NEWS.d/next/Core and Builtins/2022-08-11-09-19-55.gh-issue-95876.YpQfoV.rst | 4 | ||||
| -rw-r--r-- | Parser/pegen_errors.c | 2 |
2 files changed, 5 insertions, 1 deletions
diff --git a/Misc/NEWS.d/next/Core and Builtins/2022-08-11-09-19-55.gh-issue-95876.YpQfoV.rst b/Misc/NEWS.d/next/Core and Builtins/2022-08-11-09-19-55.gh-issue-95876.YpQfoV.rst new file mode 100644 index 0000000..96b6901 --- /dev/null +++ b/Misc/NEWS.d/next/Core and Builtins/2022-08-11-09-19-55.gh-issue-95876.YpQfoV.rst @@ -0,0 +1,4 @@ +Fix format string in ``_PyPegen_raise_error_known_location`` that can lead +to memory corruption on some 64bit systems. The function was building a +tuple with ``i`` (int) instead of ``n`` (Py_ssize_t) for Py_ssize_t +arguments. diff --git a/Parser/pegen_errors.c b/Parser/pegen_errors.c index 5703088..a0f4b98 100644 --- a/Parser/pegen_errors.c +++ b/Parser/pegen_errors.c @@ -371,7 +371,7 @@ _PyPegen_raise_error_known_location(Parser *p, PyObject *errtype, } } } - tmp = Py_BuildValue("(OiiNii)", p->tok->filename, lineno, col_number, error_line, end_lineno, end_col_number); + tmp = Py_BuildValue("(OnnNnn)", p->tok->filename, lineno, col_number, error_line, end_lineno, end_col_number); if (!tmp) { goto error; } |