Commit a0ac982c9 for imagemagick.org

commit a0ac982c90383089ee41d126d0800df5e71781f6
Author: Cristy <urban-warrior@imagemagick.org>
Date:   Thu Oct 22 13:28:27 2026 -0400

    https://github.com/ImageMagick/ImageMagick/issues/9053

diff --git a/coders/mtv.c b/coders/mtv.c
index 11e8e0402..cc5776362 100644
--- a/coders/mtv.c
+++ b/coders/mtv.c
@@ -217,6 +217,8 @@ static Image *ReadMTVImage(const ImageInfo *image_info,ExceptionInfo *exception)
     if (ReadBlobString(image,buffer) == (char *) NULL)
       break;
     count=(ssize_t) MagickSscanf(buffer,"%lu %lu\n",&columns,&rows);
+    if (count == 1)
+      ThrowReaderException(CorruptImageError,"ImproperImageHeader");
     if (count > 0)
       {
         /*