Check PyLong_AsVoidPtr result (#9548)

radarhere · web-flow · commit a0cd878beda6 · 2026-04-24T21:04:00.000+10:00
diff --git a/src/_imagingtk.c b/src/_imagingtk.c
@@ -33,8 +33,10 @@ _tkinit(PyObject *self, PyObject *args) {
     }
 
     interp = (Tcl_Interp *)PyLong_AsVoidPtr(arg);
+    if (interp == NULL && PyErr_Occurred()) {
+        return NULL;
+    }
 
-    /* This will bomb if interp is invalid... */
     TkImaging_Init(interp);
 
     Py_RETURN_NONE;

Original file line number	Diff line number	Diff line change
`@@ -33,8 +33,10 @@ _tkinit(PyObject self, PyObject args) {`
`33`	`33`	`}`
`34`	`34`
`35`	`35`	`interp = (Tcl_Interp *)PyLong_AsVoidPtr(arg);`
	`36`	`+ if (interp == NULL && PyErr_Occurred()) {`
	`37`	`+ return NULL;`
	`38`	`+ }`
`36`	`39`
`37`		`- /* This will bomb if interp is invalid... */`
`38`	`40`	`TkImaging_Init(interp);`
`39`	`41`
`40`	`42`	`Py_RETURN_NONE;`