diff options
| -rw-r--r-- | Misc/NEWS.d/next/Library/2021-10-01-13-09-53.bpo-45329.9iMYaO.rst | 2 | ||||
| -rw-r--r-- | Modules/pyexpat.c | 2 |
2 files changed, 3 insertions, 1 deletions
diff --git a/Misc/NEWS.d/next/Library/2021-10-01-13-09-53.bpo-45329.9iMYaO.rst b/Misc/NEWS.d/next/Library/2021-10-01-13-09-53.bpo-45329.9iMYaO.rst new file mode 100644 index 0000000000..b4bedbc278 --- /dev/null +++ b/Misc/NEWS.d/next/Library/2021-10-01-13-09-53.bpo-45329.9iMYaO.rst @@ -0,0 +1,2 @@ +Fix freed memory access in :class:`pyexpat.xmlparser` when building it with an +installed expat library <= 2.2.0. diff --git a/Modules/pyexpat.c b/Modules/pyexpat.c index ec684638ea..b3d9bdda7e 100644 --- a/Modules/pyexpat.c +++ b/Modules/pyexpat.c @@ -1204,10 +1204,10 @@ static void xmlparse_dealloc(xmlparseobject *self) { PyObject_GC_UnTrack(self); + (void)xmlparse_clear(self); if (self->itself != NULL) XML_ParserFree(self->itself); self->itself = NULL; - (void)xmlparse_clear(self); if (self->handlers != NULL) { PyMem_Free(self->handlers); |