From: Cristy <urban-warrior@imagemagick.org>
Date: Mon, 22 Jan 2018 13:05:42 +0000 (-0500)
Subject: Eliminate undefined-shift
X-Git-Tag: 7.0.7-22~2
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=fe43306c43cd28fcab948f67c7bb89af3a011cbe;p=imagemagick

Eliminate undefined-shift
Credit OSS Fuzz
---

diff --git a/coders/dpx.c b/coders/dpx.c
index 6c73c3d4a..6bb57222a 100644
--- a/coders/dpx.c
+++ b/coders/dpx.c
@@ -1158,7 +1158,7 @@ static Image *ReadDPXImage(const ImageInfo *image_info,ExceptionInfo *exception)
     SetPrimaryChromaticity((DPXColorimetric)
       dpx.image.image_element[n].colorimetric,&image->chromaticity);
     image->depth=dpx.image.image_element[n].bit_size;
-    if (image->depth > 32)
+    if ((image->depth == 0) || (image->depth > 32))
       ThrowReaderException(CorruptImageError,"ImproperImageHeader");
     samples_per_pixel=1;
     quantum_type=GrayQuantum;