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| author | TAGAMI Yukihiro <tagami.yukihiro@gmail.com> | 2021-10-02 09:57:13 (GMT) |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2021-10-02 09:57:13 (GMT) |
| commit | 0742abdc48886b74ed3b66985a54bb1c32802670 (patch) | |
| tree | 8fc3d4429595c75b74de5d5dbaa1b0a1787e1864 | |
| parent | 417faa69bd48dfc22e4eff9bb2c610f53d59d02f (diff) | |
| download | cpython-0742abdc48886b74ed3b66985a54bb1c32802670.zip cpython-0742abdc48886b74ed3b66985a54bb1c32802670.tar.gz cpython-0742abdc48886b74ed3b66985a54bb1c32802670.tar.bz2 | |
bpo-45329: Fix freed memory access in pyexpat.c (GH-28649)
| -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 0000000..b4bedbc --- /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 ec68463..b3d9bdd 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); |