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gh-101952: Fix possible segfault in BUILD_SET opcode (#101958)

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Eclips4 2023-02-16 20:46:43 +03:00 • committed by GitHub
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commit 68bd8c5e2e
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1
Misc/NEWS.d/next/Core and Builtins/2023-02-16-16-57-23.gh-issue-101952.Zo1dlq.rst Normal file
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@ -0,0 +1 @@
Fix possible segfault in ``BUILD_SET`` opcode, when new set created.

2
Python/bytecodes.c
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@ -1302,6 +1302,8 @@ dummy_func(
inst(BUILD_SET, (values[oparg] -- set)) { inst(BUILD_SET, (values[oparg] -- set)) {
set = PySet_New(NULL); set = PySet_New(NULL);
if (set == NULL)
goto error;
int err = 0; int err = 0;
for (int i = 0; i < oparg; i++) { for (int i = 0; i < oparg; i++) {
PyObject *item = values[i]; PyObject *item = values[i];

2
Python/generated_cases.c.h generated
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@ -1649,6 +1649,8 @@
PyObject **values = &PEEK(oparg); PyObject **values = &PEEK(oparg);
PyObject *set; PyObject *set;
set = PySet_New(NULL); set = PySet_New(NULL);
if (set == NULL)
goto error;
int err = 0; int err = 0;
for (int i = 0; i < oparg; i++) { for (int i = 0; i < oparg; i++) {
PyObject *item = values[i]; PyObject *item = values[i];