https://github.com/ImageMagick/ImageMagick/issues/1045

diff --git a/coders/fits.c b/coders/fits.c
index 51a01469bc699d68b4d82feb56180073880a0ccd..fd2e31c632db881384a8f1f80006d9320ac53fe7 100644 (file)
--- a/coders/fits.c
+++ b/coders/fits.c
@@ -669,7 +669,10 @@ static MagickBooleanType WriteFITSImage(const ImageInfo *image_info,
   image->endian=MSBEndian;
   quantum_info=AcquireQuantumInfo(image_info,image);
   if (quantum_info == (QuantumInfo *) NULL)
-    ThrowWriterException(ResourceLimitError,"MemoryAllocationFailed");
+    {
+      fits_info=DestroyString(fits_info);
+      ThrowWriterException(ResourceLimitError,"MemoryAllocationFailed");
+    }
   offset=0;
   (void) FormatLocaleString(header,FITSBlocksize,
     "SIMPLE  =                    T");