mirrors/cpython
1
0
Fork 0
mirror of https://github.com/python/cpython.git synced 2025-11-03 03:22:27 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions 8

Issue #18294: Fix uint_converter() in zlibmodule.c, fix the "> UINT_MAX" check

Browse source
This commit is contained in:
Victor Stinner 2014-01-03 12:26:12 +01:00
parent fbc785188d
commit 5c86733c8a
1 changed files with 6 additions and 5 deletions
Download patch file Download diff file Expand all files Collapse all files

11
Modules/zlibmodule.c
View file

@ -329,11 +329,6 @@ uint_converter(PyObject *obj, void *ptr)
uval = PyLong_AsUnsignedLong(obj); uval = PyLong_AsUnsignedLong(obj);
if (uval == (unsigned long)-1 && PyErr_Occurred()) if (uval == (unsigned long)-1 && PyErr_Occurred())
return 0; return 0;
if (uval > UINT_MAX) {
PyErr_SetString(PyExc_OverflowError,
"Python int too large for C unsigned int");
return 0;
}
} }
else { else {
if (val < 0) { if (val < 0) {
@ -344,6 +339,12 @@ uint_converter(PyObject *obj, void *ptr)
uval = (unsigned long)val; uval = (unsigned long)val;
} }
if (uval > UINT_MAX) {
PyErr_SetString(PyExc_OverflowError,
"Python int too large for C unsigned int");
return 0;
}
*(unsigned int *)ptr = Py_SAFE_DOWNCAST(uval, unsigned long, unsigned int); *(unsigned int *)ptr = Py_SAFE_DOWNCAST(uval, unsigned long, unsigned int);
return 1; return 1;
} }