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[3.13] gh-143309: fix UAF in os.execve when the environment is concurrently mutated (GH-143314) #143399

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miss-islington wants to merge 4 commits into from
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[3.13] gh-143309: fix UAF in os.execve when the environment is concurrently mutated (GH-143314) #143399

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gh-143309: fix UAF in `os.execve` when the environment is concurrentl…
picnixz Jan 3, 2026
b6f9b52
Update Lib/test/test_os.py
picnixz Jan 3, 2026
9f9c4a4
Update Lib/test/test_os.py
picnixz Jan 3, 2026
f0964df
Update Lib/test/test_os.py
picnixz Jan 3, 2026
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Update Lib/test/test_os.py
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@picnixz
picnixz authored Jan 3, 2026
commit f0964dffe8b5bac98cbbd95c45197e50798c546a
2 changes: 1 addition & 1 deletion Lib/test/test_os.py
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Expand Up @@ -2282,7 +2282,7 @@ def values(self): return VALUES
args = [sys.executable, '-c', "print({message!r})"]
os.execve(args[0], args, MyEnv())
""".format(message=message)

code = textwrap.dedent(code)
# Use '__cleanenv' to signal to assert_python_ok() not
# to do a copy of os.environ on its own.
rc, out, _ = assert_python_ok('-c', code, __cleanenv=True)
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