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| author | Tony Solomonik <tony.solomonik@gmail.com> | 2020-08-30 04:53:08 (GMT) |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2020-08-30 04:53:08 (GMT) |
| commit | 75c80b0bda89debf312f075716b8c467d411f90e (patch) | |
| tree | 3b013c3da2528cb7a3760a40746685f898d367ea /Python | |
| parent | c68c5af2dc5ada8875a662f2beaac6234eae2a5a (diff) | |
| download | cpython-75c80b0bda89debf312f075716b8c467d411f90e.zip cpython-75c80b0bda89debf312f075716b8c467d411f90e.tar.gz cpython-75c80b0bda89debf312f075716b8c467d411f90e.tar.bz2 | |
closes bpo-41533: Fix a potential memory leak when allocating a stack (GH-21847)
Free the stack allocated in va_build_stack if do_mkstack fails
and the stack is not a small_stack
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 2637039..2dabcf3 100644 --- a/Python/modsupport.c +++ b/Python/modsupport.c @@ -622,6 +622,9 @@ 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; } |