Fixed #24544 -- Fixed get_image_dimensions() on image buffers that Pillow fails to parse.

Thanks Steve Kossouho for the report and original patch.

django/core/files/images.py

@@ -3,6 +3,7 @@ Utility functions for handling images.
 
 Requires Pillow as you might imagine.
 """
+import struct
 import zlib
 
 from django.core.files import File
@@ -63,6 +64,11 @@ def get_image_dimensions(file_or_path, close=False):
                     pass
                 else:
                     raise
+            except struct.error as e:
+                # Ignore PIL failing on a too short buffer when reads return
+                # less bytes than expected. Skip and feed more data to the
+                # parser (ticket #24544).
+                pass
             if p.image:
                 return p.image.size
             chunk_size *= 2