Python/coreconfig.c: Fix _Py_wstrlist_copy()

[izbyshev]

BPO	34492
Nosy	@vstinner, @berkerpeksag, @serhiy-storchaka, @izbyshev
PRs	bpo-34492: Python/coreconfig.c: Fix _Py_wstrlist_copy() #8910 [3.7] bpo-34492: Modules/main.c: Fix copy_wstrlist() (GH-8910) #8922

^{Note: these values reflect the state of the issue at the time it was migrated and might not reflect the current state.}

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GitHub fields:

assignee = None
closed_at = <Date 2018-08-25.16:47:27.087>
created_at = <Date 2018-08-24.22:37:17.803>
labels = ['interpreter-core', '3.8', 'type-bug', '3.7']
title = 'Python/coreconfig.c: Fix _Py_wstrlist_copy()'
updated_at = <Date 2018-08-25.16:47:27.086>
user = 'https://github.com/izbyshev'

bugs.python.org fields:

activity = <Date 2018-08-25.16:47:27.086>
actor = 'vstinner'
assignee = 'none'
closed = True
closed_date = <Date 2018-08-25.16:47:27.087>
closer = 'vstinner'
components = ['Interpreter Core']
creation = <Date 2018-08-24.22:37:17.803>
creator = 'izbyshev'
dependencies = []
files = []
hgrepos = []
issue_num = 34492
keywords = ['patch']
message_count = 4.0
messages = ['324021', '324023', '324078', '324079']
nosy_count = 4.0
nosy_names = ['vstinner', 'berker.peksag', 'serhiy.storchaka', 'izbyshev']
pr_nums = ['8910', '8922']
priority = 'normal'
resolution = 'fixed'
stage = 'resolved'
status = 'closed'
superseder = None
type = 'behavior'
url = 'https://bugs.python.org/issue34492'
versions = ['Python 3.7', 'Python 3.8']

[izbyshev]

The return value of PyMem_RawMalloc() is not checked for NULL at

cpython/Python/coreconfig.c

Line 71 in ef8861c

wchar_t **list_copy = PyMem_RawMalloc(size);

.

Reported by Svace static analyzer.

[vstinner]

New changeset eb746db by Victor Stinner (Alexey Izbyshev) in branch 'master':
bpo-34492: Python/coreconfig.c: Fix _Py_wstrlist_copy() (GH-8910)
eb746db

[vstinner]

New changeset 388bd4b by Victor Stinner (Alexey Izbyshev) in branch '3.7':
[3.7] bpo-34492: Modules/main.c: Fix copy_wstrlist() (GH-8910) (GH-8922)
388bd4b

[vstinner]

Thanks Alexey Izbyshev for the bug report and the fix for 3.7 and master branches!