From: Mark Shannon Date: Mon, 20 Mar 2023 14:42:15 +0000 (+0000) Subject: [3.11] gh-101975: Fixed a potential SegFault on garbage collection (GH-102803) (GH... X-Git-Tag: v3.11.3~46 X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=d149f15d637a323ac818a7fa719cad945828a04b;p=thirdparty%2FPython%2Fcpython.git [3.11] gh-101975: Fixed a potential SegFault on garbage collection (GH-102803) (GH-102807) Authored-by: gaogaotiantian --- diff --git a/Misc/NEWS.d/next/Core and Builtins/2023-03-18-02-36-39.gh-issue-101975.HwMR1d.rst b/Misc/NEWS.d/next/Core and Builtins/2023-03-18-02-36-39.gh-issue-101975.HwMR1d.rst new file mode 100644 index 000000000000..28c9a8465180 --- /dev/null +++ b/Misc/NEWS.d/next/Core and Builtins/2023-03-18-02-36-39.gh-issue-101975.HwMR1d.rst @@ -0,0 +1 @@ +Fixed ``stacktop`` value on tracing entries to avoid corruption on garbage collection. diff --git a/Python/ceval.c b/Python/ceval.c index 96d215aba800..72f9c8375d07 100644 --- a/Python/ceval.c +++ b/Python/ceval.c @@ -1536,6 +1536,7 @@ eval_frame_handle_pending(PyThreadState *tstate) _PyFrame_SetStackPointer(frame, stack_pointer); \ int err = trace_function_entry(tstate, frame); \ stack_pointer = _PyFrame_GetStackPointer(frame); \ + frame->stacktop = -1; \ if (err) { \ goto error; \ } \