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| author | Miss Islington (bot) <31488909+miss-islington@users.noreply.github.com> | 2020-09-04 22:26:05 (GMT) |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2020-09-04 22:26:05 (GMT) |
| commit | 66e9c2aee4af846ab1b77faa8a46fe3a9373d943 (patch) | |
| tree | 112e1473d54c26b8e14e2e8a9676cef6197657c2 /Python | |
| parent | e52f5bc898c9a11fb1d57a42a1f9ec60b424d576 (diff) | |
| download | cpython-66e9c2aee4af846ab1b77faa8a46fe3a9373d943.zip cpython-66e9c2aee4af846ab1b77faa8a46fe3a9373d943.tar.gz cpython-66e9c2aee4af846ab1b77faa8a46fe3a9373d943.tar.bz2 | |
[3.8] closes bpo-41533: Fix a potential memory leak when allocating a stack (GH-21847) (GH-22015)
Free the stack allocated in va_build_stack if do_mkstack fails
and the stack is not a small_stack
(cherry picked from commit 75c80b0bda89debf312f075716b8c467d411f90e)
Co-authored-by: Tony Solomonik <tony.solomonik@gmail.com>
Diffstat (limited to 'Python')
| -rw-r--r-- | Python/modsupport.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/Python/modsupport.c b/Python/modsupport.c index 7271af3..5062811 100644 --- a/Python/modsupport.c +++ b/Python/modsupport.c @@ -618,6 +618,9 @@ va_build_stack(PyObject **small_stack, Py_ssize_t small_stack_len, va_end(lva); if (res < 0) { + if (stack != small_stack) { + PyMem_Free(stack); + } return NULL; } |