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Issue #5387: Fixed mmap.move crash by integer overflow. (take2)

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Hirokazu Yamamoto 2009-03-31 20:14:04 +00:00
parent 65ff00559a
commit 1d7d5325be
2 changed files with 17 additions and 5 deletions
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2
Modules/mmapmodule.c
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@ -617,7 +617,7 @@ mmap_move_method(mmap_object *self, PyObject *args)
} else {
/* bounds check the values */
unsigned long pos = src > dest ? src : dest;
if (self->size >= pos && count > self->size - pos) {
if (self->size < pos || count > self->size - pos) {
PyErr_SetString(PyExc_ValueError,
"source or destination out of range");
return NULL;