From: Cristy <urban-warrior@imagemagick.org>
Date: Mon, 9 Jul 2018 23:43:23 +0000 (-0400)
Subject: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=9314
X-Git-Tag: 7.0.8-7~17
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=205d397e64fda4ba328042237ed7ddcfcff85e5c;p=imagemagick

https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=9314
---

diff --git a/coders/dcm.c b/coders/dcm.c
index 817b922b9..9caf75e73 100644
--- a/coders/dcm.c
+++ b/coders/dcm.c
@@ -3973,6 +3973,9 @@ static Image *ReadDCMImage(const ImageInfo *image_info,ExceptionInfo *exception)
         stream_info->offset_count=length >> 2;
         if (stream_info->offset_count != 0)
           {
+            if (stream_info->offsets != (ssize_t *) NULL)
+              stream_info->offsets=(ssize_t *)
+                RelinquishMagickMemory(stream_info->offsets);
             stream_info->offsets=(ssize_t *) AcquireQuantumMemory(
               stream_info->offset_count,sizeof(*stream_info->offsets));
             if (stream_info->offsets == (ssize_t *) NULL)