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[3.14] gh-145187: Fix crash on invalid type parameter bound expression in conditional block (GH-145188) (#145196)

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gh-145187: Fix crash on invalid type parameter bound expression in conditional block (GH-145188)

Fix parsing crash found by oss-fuzz
(cherry picked from commit 5e61a16c10)

Co-authored-by: Stan Ulbrych <89152624+StanFromIreland@users.noreply.github.com>
This commit is contained in:
Miss Islington (bot) 2026-02-24 22:13:08 +01:00 • committed by GitHub
parent bbce6ba08c
commit 12092af02e
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3 changed files with 12 additions and 3 deletions
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6
Python/codegen.c
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@ -1200,11 +1200,11 @@ codegen_type_param_bound_or_default(compiler *c, expr_ty e,
ADDOP_LOAD_CONST_NEW(c, LOC(e), defaults);
RETURN_IF_ERROR(codegen_setup_annotations_scope(c, LOC(e), key, name));
if (allow_starred && e->kind == Starred_kind) {
VISIT(c, expr, e->v.Starred.value);
ADDOP_I(c, LOC(e), UNPACK_SEQUENCE, (Py_ssize_t)1);
VISIT_IN_SCOPE(c, expr, e->v.Starred.value);
ADDOP_I_IN_SCOPE(c, LOC(e), UNPACK_SEQUENCE, (Py_ssize_t)1);
}
else {
VISIT(c, expr, e);
VISIT_IN_SCOPE(c, expr, e);
}
ADDOP_IN_SCOPE(c, LOC(e), RETURN_VALUE);
PyCodeObject *co = _PyCompile_OptimizeAndAssemble(c, 1);