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| author | Tim Peters <tim.peters@gmail.com> | 2022-05-06 04:14:09 (GMT) |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2022-05-06 04:14:09 (GMT) |
| commit | 9652900969df77b1ac245595419431df19296af9 (patch) | |
| tree | b66e654506c7103b622c47012dd52412f8ff79a3 /Objects | |
| parent | 85354ed78c0edb6d81a2bd53cabc85e547b8b26e (diff) | |
| download | cpython-9652900969df77b1ac245595419431df19296af9.zip cpython-9652900969df77b1ac245595419431df19296af9.tar.gz cpython-9652900969df77b1ac245595419431df19296af9.tar.bz2 | |
Issues/88027: A potential double free in list_sort_impl (#92367)
merge_freemem(): set keys to NULL do it's harmless to call this again.
Diffstat (limited to 'Objects')
| -rw-r--r-- | Objects/listobject.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/Objects/listobject.c b/Objects/listobject.c index 972f995..b50623e 100644 --- a/Objects/listobject.c +++ b/Objects/listobject.c @@ -1573,8 +1573,10 @@ static void merge_freemem(MergeState *ms) { assert(ms != NULL); - if (ms->a.keys != ms->temparray) + if (ms->a.keys != ms->temparray) { PyMem_Free(ms->a.keys); + ms->a.keys = NULL; + } } /* Ensure enough temp memory for 'need' array slots is available. |