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[3.15] gh-151842: Fix crash upon OOM in _interpreters.capture_exception (GH-151843) (GH-152031)

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(cherry picked from commit 5e0747db2f)

Co-authored-by: Amrutha <amruthamodela06@gmail.com>
This commit is contained in:
Miss Islington (bot) 2026-06-23 22:58:10 +02:00 • committed by GitHub
parent bd39eea0db
commit 415e218ed5
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3 changed files with 7 additions and 1 deletions
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2
Misc/NEWS.d/next/Library/2026-06-30-13-00-00.gh-issue-151842.OOM31g.rst Normal file
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@ -0,0 +1,2 @@
Fix a crash in :func:`!_interpreters.capture_exception` when
:exc:`MemoryError` happens. Patch by Amrutha Modela.

4
Modules/_interpretersmodule.c
View file

@ -1541,7 +1541,9 @@ _interpreters_capture_exception_impl(PyObject *module, PyObject *exc_arg)
}
finally:
_PyXI_FreeExcInfo(info);
if (info != NULL) {
_PyXI_FreeExcInfo(info);
}
if (exc != exc_arg) {
if (PyErr_Occurred()) {
PyErr_SetRaisedException(exc);

2
Python/crossinterp.c
View file

@ -1689,6 +1689,7 @@ _PyXI_NewExcInfo(PyObject *exc)
}
_PyXI_excinfo *info = PyMem_RawCalloc(1, sizeof(_PyXI_excinfo));
if (info == NULL) {
PyErr_NoMemory();
return NULL;
}
const char *failure;
@ -1709,6 +1710,7 @@ _PyXI_NewExcInfo(PyObject *exc)
void
_PyXI_FreeExcInfo(_PyXI_excinfo *info)
{
assert(info != NULL);
_PyXI_excinfo_clear(info);
PyMem_RawFree(info);
}