Commit a5268469a for imagemagick.org

commit a5268469a02666d118085b182565436554d8ce54
Author: Dirk Lemstra <dirk@lemstra.org>
Date:   Sun May 24 18:29:42 2026 +0200

    Close the blob before the dimensions are checked.

diff --git a/coders/dcm.c b/coders/dcm.c
index 8b027f8a0..ec6855795 100644
--- a/coders/dcm.c
+++ b/coders/dcm.c
@@ -4376,10 +4376,10 @@ static Image *ReadDCMImage(const ImageInfo *image_info,ExceptionInfo *exception)
   RelinquishDCMMemory(&info,&map,stream_info,stack,data);
   if (image == (Image *) NULL)
     return(image);
-  if ((image->rows == 0) || (image->columns == 0))
-    ThrowReaderException(CorruptImageError,"ImproperImageHeader")
   if (CloseBlob(image) == MagickFalse)
     status=MagickFalse;
+  if ((image->rows == 0) || (image->columns == 0))
+    ThrowReaderException(CorruptImageError,"ImproperImageHeader")
   if (status == MagickFalse)
     return(DestroyImageList(image));
   return(GetFirstImageInList(image));