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authorLarry Hastings <larry@hastings.org>2010-02-24 22:49:58 (GMT)
committerLarry Hastings <larry@hastings.org>2010-02-24 22:49:58 (GMT)
commit1373a0781e28a6aaa595ca3ae145ccd586004ac7 (patch)
treebc89bcbdc3611b3f837c8bdf82c8907eb1a76fcb
parent6d726c3a2f105b19b44cba0fdd10646a69cafaaa (diff)
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Issue #5939: Add additional runtime checking to ensure a valid capsule
in Modules/_ctypes/callproc.c. Reviewed by Benjamin P. My first commit!
-rw-r--r--Misc/NEWS3
-rw-r--r--Modules/_ctypes/callproc.c8
2 files changed, 10 insertions, 1 deletions
diff --git a/Misc/NEWS b/Misc/NEWS
index 8015894..e384a92 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -12,6 +12,9 @@ What's New in Python 3.2 Alpha 1?
Core and Builtins
-----------------
+- Issue #5939: Add additional runtime checking to ensure a valid capsule
+ in Modules/_ctypes/callproc.c.
+
- Issue #7309: Fix unchecked attribute access when converting
UnicodeEncodeError, UnicodeDecodeError, and UnicodeTranslateError to
strings.
diff --git a/Modules/_ctypes/callproc.c b/Modules/_ctypes/callproc.c
index f5eaa0d..2a75fb1 100644
--- a/Modules/_ctypes/callproc.c
+++ b/Modules/_ctypes/callproc.c
@@ -139,8 +139,14 @@ _ctypes_get_errobj(int **pspace)
return NULL;
}
errobj = PyDict_GetItem(dict, error_object_name);
- if (errobj)
+ if (errobj) {
+ if (!PyCapsule_IsValid(errobj, CTYPES_CAPSULE_NAME_PYMEM)) {
+ PyErr_SetString(PyExc_RuntimeError,
+ "ctypes.error_object is an invalid capsule");
+ return NULL;
+ }
Py_INCREF(errobj);
+ }
else {
void *space = PyMem_Malloc(sizeof(int) * 2);
if (space == NULL)