Commit fdbf39ba9 for imagemagick.org

commit fdbf39ba9a681e53e6025d40501ae5a2bfec3000
Author: Cristy <urban-warrior@imagemagick.org>
Date:   Fri Jun 5 09:48:05 2026 -0400

    https://github.com/ImageMagick/ImageMagick/security/advisories/GHSA-m596-67p7-69wh

diff --git a/coders/viff.c b/coders/viff.c
index f0df5d275..1261cfe15 100644
--- a/coders/viff.c
+++ b/coders/viff.c
@@ -1148,7 +1148,10 @@ static MagickBooleanType WriteVIFFImage(const ImageInfo *image_info,
           viff_colormap=(unsigned char *) AcquireQuantumMemory(image->colors,
             3*sizeof(*viff_colormap));
           if (viff_colormap == (unsigned char *) NULL)
-            ThrowWriterException(ResourceLimitError,"MemoryAllocationFailed");
+            {
+              pixel_info=RelinquishVirtualMemory(pixel_info);
+              ThrowWriterException(ResourceLimitError,"MemoryAllocationFailed");
+            }
           q=viff_colormap;
           for (i=0; i < (ssize_t) image->colors; i++)
             *q++=ScaleQuantumToChar(ClampToQuantum(image->colormap[i].red));