Merge pull request #5108 from cgohlke/patch-1

Fix dereferencing potential null pointer
python-pillow · Dec 21, 2020 · 0eddc82 · 0eddc82
2 parents 9443997 + d1e706d
commit 0eddc82
Showing 1 changed file with 4 additions and 0 deletions.
diff --git a/src/_imaging.c b/src/_imaging.c
@@ -3179,6 +3179,10 @@ _draw_polygon(ImagingDrawObject* self, PyObject* args)
 
     /* Copy list of vertices to array */
     ixy = (int*) calloc(n, 2 * sizeof(int));
+    if (ixy == NULL) {
+        free(xy);
+        return ImagingError_MemoryError();
+    }
 
     for (i = 0; i < n; i++) {
         ixy[i+i] = (int) xy[i+i];