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bpo-31675: Fix memory leaks in Tkinter's methods splitlist() and split() (#3866)

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when pass a string larger than 2 GiB.

Decrease memory requirements for Tcl's bigmem tests.
This commit is contained in:
Serhiy Storchaka 2017-10-03 22:39:55 +03:00 • committed by GitHub
parent 929b40a601
commit 27c623c845
3 changed files with 45 additions and 23 deletions
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12
Modules/_tkinter.c
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@ -2257,7 +2257,11 @@ _tkinter_tkapp_splitlist(TkappObject *self, PyObject *arg)
if (!PyArg_Parse(arg, "et:splitlist", "utf-8", &list))
return NULL;
CHECK_STRING_LENGTH(list);
if (strlen(list) >= INT_MAX) {
PyErr_SetString(PyExc_OverflowError, "string is too long");
PyMem_Free(list);
return NULL;
}
if (Tcl_SplitList(Tkapp_Interp(self), list,
&argc, &argv) == TCL_ERROR) {
PyMem_Free(list);
@ -2328,7 +2332,11 @@ _tkinter_tkapp_split(TkappObject *self, PyObject *arg)
if (!PyArg_Parse(arg, "et:split", "utf-8", &list))
return NULL;
CHECK_STRING_LENGTH(list);
if (strlen(list) >= INT_MAX) {
PyErr_SetString(PyExc_OverflowError, "string is too long");
PyMem_Free(list);
return NULL;
}
v = Split(list);
PyMem_Free(list);
return v;