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[3.13] gh-126461: Fix _Unpickler_ReadFromFile() error handling (GH-126485) (#126495) 

gh-126461: Fix _Unpickler_ReadFromFile() error handling (GH-126485)

Handle _Unpickler_SetStringInput() failure.
(cherry picked from commit a1c57bcfd2)

Co-authored-by: Victor Stinner <vstinner@python.org>
This commit is contained in:
Miss Islington (bot) 2024-11-06 14:51:39 +01:00 committed by GitHub
parent 6e9da38866
commit 83827ad819
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1 changed files with 4 additions and 0 deletions
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4
Modules/_pickle.c
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@ -1287,6 +1287,10 @@ _Unpickler_ReadFromFile(UnpicklerObject *self, Py_ssize_t n)
else {
read_size = _Unpickler_SetStringInput(self, data);
Py_DECREF(data);
if (read_size < 0) {
return -1;
}
self->prefetched_idx = 0;
if (n <= read_size)
return n;