From: Cristy <urban-warrior@imagemagick.org>
Date: Mon, 22 Jan 2018 00:01:01 +0000 (-0500)
Subject: Eliminate small FITS memory leak
X-Git-Tag: 7.0.7-22~8
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=7ccbeeb368f2eb21d107901a9dbe6e551cb80536;p=imagemagick

Eliminate small FITS memory leak
Credit OSS Fuzz
---

diff --git a/coders/fits.c b/coders/fits.c
index 4e74c980b..ad6ae88ca 100644
--- a/coders/fits.c
+++ b/coders/fits.c
@@ -394,7 +394,11 @@ static Image *ReadFITSImage(const ImageInfo *image_info,
     if ((fits_info.bits_per_pixel != 8) && (fits_info.bits_per_pixel != 16) &&
         (fits_info.bits_per_pixel != 32) && (fits_info.bits_per_pixel != 64) &&
         (fits_info.bits_per_pixel != -32) && (fits_info.bits_per_pixel != -64))
-      ThrowReaderException(CorruptImageError,"ImproperImageHeader");
+      {
+        if (comment != (char *) NULL)
+          comment=DestroyString(comment);
+        ThrowReaderException(CorruptImageError,"ImproperImageHeader");
+      }
     number_pixels=(MagickSizeType) fits_info.columns*fits_info.rows;
     if ((fits_info.simple != MagickFalse) && (fits_info.number_axes >= 1) &&
         (fits_info.number_axes <= 4) && (number_pixels != 0))