Stowage/cpython
2
0
Fork 0
mirror of https://github.com/python/cpython.git synced 2025-12-31 04:23:37 +00:00
Code Issues Projects Releases Packages Wiki Activity

bpo-40263: Fixes an off-by-one error in _winapi_WaitForMultipleObjects_impl (GH-19501)

Browse source
This commit is contained in:
Ray Donnelly 2021-07-28 20:58:05 +01:00 • committed by GitHub
parent 31bec6f1b1
commit 92b5dc780d
No known key found for this signature in database
GPG key ID: 4AEE18F83AFDEB23
2 changed files with 4 additions and 1 deletions
Download patch file Download diff file Expand all files Collapse all files

3
Misc/NEWS.d/next/Windows/2020-04-13-15-20-28.bpo-40263.1KKEbu.rst Normal file
View file

@ -0,0 +1,3 @@
This is a follow-on bug from https://bugs.python.org/issue26903. Once that
is applied we run into an off-by-one assertion problem. The assert was not
correct.

2
Modules/_winapi.c
View file

@ -1722,7 +1722,7 @@ _winapi_WaitForMultipleObjects_impl(PyObject *module, PyObject *handle_seq,
nhandles = PySequence_Length(handle_seq);
if (nhandles == -1)
return NULL;
if (nhandles < 0 || nhandles >= MAXIMUM_WAIT_OBJECTS - 1) {
if (nhandles < 0 || nhandles > MAXIMUM_WAIT_OBJECTS - 1) {
PyErr_Format(PyExc_ValueError,
"need at most %zd handles, got a sequence of length %zd",
MAXIMUM_WAIT_OBJECTS - 1, nhandles);