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gh-94518: [_posixsubprocess] Replace variable validity flags with reserved values #94687

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Merged
gpshead merged 14 commits into from
Jan 14, 2023
Merged

gh-94518: [_posixsubprocess] Replace variable validity flags with reserved values #94687

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1b3250e
Replace call_setgid/call_setuid in _posixsubprocess with gid/uid==-1
arhadthedev Jul 8, 2022
c292331
Merge branch 'main' into posixsubprocess-no-callsetxid
arhadthedev Jul 22, 2022
7d431a3
Add a NEWS entry
arhadthedev Jul 22, 2022
06f2a01
Address Gregory's review in gh-94519
arhadthedev Jul 26, 2022
aaec16e
Use negative groups_size for "don't call setgroups"
arhadthedev Jul 27, 2022
c9bf4f6
Check num_groups for emptiness, not groups_list
arhadthedev Jul 27, 2022
069d769
Restore assertions in do_fork_exec()
arhadthedev Jul 27, 2022
6a236e5
Tighten scope of relevant short lived variables
arhadthedev Jul 27, 2022
8c06be1
Fix `PermissionError: [Errno 1] Operation not permitted` exception
arhadthedev Jul 27, 2022
3ccdb78
Merge branch 'main' into posixsubprocess-no-callsetxid
arhadthedev Oct 6, 2022
d3c0e6c
Merge branch 'main' into posixsubprocess-no-callsetxid
arhadthedev Oct 29, 2022
cfdf639
Merge branch 'main' into posixsubprocess-no-callsetxid
arhadthedev Nov 14, 2022
0e997c0
Merge branch 'main' into posixsubprocess-no-callsetxid
arhadthedev Nov 29, 2022
66c836b
Merge branch 'main' into posixsubprocess-no-callsetxid
arhadthedev Jan 14, 2023
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Tighten scope of relevant short lived variables
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@arhadthedev
arhadthedev committed Jul 27, 2022
commit 6a236e52fdbecb011d00131210743c617262d5c4
6 changes: 2 additions & 4 deletions Modules/_posixsubprocess.c
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Original file line number Diff line number Diff line change
Expand Up @@ -905,9 +905,6 @@ subprocess_fork_exec(PyObject *module, PyObject *args)

if (groups_list != Py_None) {
#ifdef HAVE_SETGROUPS
Py_ssize_t i;
gid_t gid;

if (!PyList_Check(groups_list)) {
PyErr_SetString(PyExc_TypeError,
"setgroups argument must be a list");
Expand All @@ -933,7 +930,7 @@ subprocess_fork_exec(PyObject *module, PyObject *args)
}
}

for (i = 0; i < num_groups; i++) {
for (Py_ssize_t i = 0; i < num_groups; i++) {
PyObject *elem;
elem = PySequence_GetItem(groups_list, i);
if (!elem)
Expand All @@ -944,6 +941,7 @@ subprocess_fork_exec(PyObject *module, PyObject *args)
Py_DECREF(elem);
goto cleanup;
} else {
gid_t gid;
if (!_Py_Gid_Converter(elem, &gid)) {
Py_DECREF(elem);
PyErr_SetString(PyExc_ValueError, "invalid group id");
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