Stowage/cpython
2
0
Fork 0
mirror of https://github.com/python/cpython.git synced 2025-12-08 06:10:17 +00:00
Code Issues Projects Releases Packages Wiki Activity

gh-140939: Fix memory leak in _PyBytes_FormatEx error path (#140957)

Browse source
This commit is contained in:
Stan Ulbrych 2025-11-06 05:50:57 +00:00 • committed by GitHub
parent 9037a386c6
commit d6c89a2df2
No known key found for this signature in database
GPG key ID: B5690EEEBB952194
3 changed files with 10 additions and 0 deletions
Download patch file Download diff file Expand all files Collapse all files

7
Lib/test/test_bytes.py
View file

@ -802,6 +802,13 @@ def __int__(self):
with self.assertRaisesRegex(TypeError, msg):
operator.mod(format_bytes, value)
def test_memory_leak_gh_140939(self):
# gh-140939: MemoryError is raised without leaking
_testcapi = import_helper.import_module('_testcapi')
with self.assertRaises(MemoryError):
b = self.type2test(b'%*b')
b % (_testcapi.PY_SSIZE_T_MAX, b'abc')
def test_imod(self):
b = self.type2test(b'hello, %b!')
orig = b