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| author | Mark Shannon <mark@hotpy.org> | 2022-07-01 10:08:20 (GMT) |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2022-07-01 10:08:20 (GMT) |
| commit | 544531de23d69f5b23883794fc7bb23a958a0fcb (patch) | |
| tree | ad88c0a6543127cd89027843ab441aa29dbdbc75 /Python/frame.c | |
| parent | 1df9449db24f16c9c96bdd7dc283a5062bca68e6 (diff) | |
| download | cpython-544531de23d69f5b23883794fc7bb23a958a0fcb.zip cpython-544531de23d69f5b23883794fc7bb23a958a0fcb.tar.gz cpython-544531de23d69f5b23883794fc7bb23a958a0fcb.tar.bz2 | |
GH-94262: Don't create frame objects for frames that aren't yet complete. (GH-94371)
Diffstat (limited to 'Python/frame.c')
| -rw-r--r-- | Python/frame.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/Python/frame.c b/Python/frame.c index 206ecab..7c6705e 100644 --- a/Python/frame.c +++ b/Python/frame.c @@ -68,9 +68,13 @@ take_ownership(PyFrameObject *f, _PyInterpreterFrame *frame) f->f_frame = frame; frame->owner = FRAME_OWNED_BY_FRAME_OBJECT; assert(f->f_back == NULL); - if (frame->previous != NULL) { + _PyInterpreterFrame *prev = frame->previous; + while (prev && _PyFrame_IsIncomplete(prev)) { + prev = prev->previous; + } + if (prev) { /* Link PyFrameObjects.f_back and remove link through _PyInterpreterFrame.previous */ - PyFrameObject *back = _PyFrame_GetFrameObject(frame->previous); + PyFrameObject *back = _PyFrame_GetFrameObject(prev); if (back == NULL) { /* Memory error here. */ assert(PyErr_ExceptionMatches(PyExc_MemoryError)); |