SSLContext.load_verify_locations leaks memory on Linux

GitHub fields:

assignee = None
closed_at = None
created_at = <Date 2020-05-22.09:29:10.619>
labels = ['expert-SSL', '3.8', '3.9', 'performance', '3.7', 'library', 'expert-asyncio']
title = 'SSLContext.load_verify_locations leaks memory on Linux in async code'
updated_at = <Date 2020-05-22.10:32:24.242>
user = 'https://github.com/Recursing'

bugs.python.org fields:

activity = <Date 2020-05-22.10:32:24.242>
actor = 'Recursing'
assignee = 'none'
closed = False
closed_date = None
closer = None
components = ['Library (Lib)', 'asyncio', 'SSL']
creation = <Date 2020-05-22.09:29:10.619>
creator = 'Recursing'
dependencies = []
files = []
hgrepos = []
issue_num = 40727
keywords = []
message_count = 6.0
messages = ['369573', '369578', '369582', '369583', '369584', '369586']
nosy_count = 4.0
nosy_names = ['christian.heimes', 'asvetlov', 'yselivanov', 'Recursing']
pr_nums = []
priority = 'normal'
resolution = None
stage = None
status = 'open'
superseder = None
type = 'resource usage'
url = 'https://bugs.python.org/issue40727'
versions = ['Python 3.6', 'Python 3.7', 'Python 3.8', 'Python 3.9']