commit 19ebd40547186a8ea6da08c8d8e2a6d6b7e84f5d
author Albert Astals Cid <aacid@kde.org> Fri Oct 13 00:55:49 2017 +0200
committer Albert Astals Cid <aacid@kde.org> Fri Oct 13 00:55:49 2017 +0200
tree 4d8eeb58b1321cbe48a0f284de73e16bfa84dc09
parent 7ee9dadef37b20bca707a6b1e858e17d191e368b

CairoOutputDev: Fix crash in broken files

Bug #103016

poppler/CairoOutputDev.cc

diff --git a/poppler/CairoOutputDev.cc b/poppler/CairoOutputDev.cc
index ffd39ef..80f7a99 100644
--- a/poppler/CairoOutputDev.cc
+++ b/poppler/CairoOutputDev.cc
@@ -2714,7 +2714,9 @@
   for (y = 0; y < maskHeight; y++) {
     maskDest = (unsigned char *) (maskBuffer + y * row_stride);
     pix = maskImgStr->getLine();
-    maskColorMap->getGrayLine (pix, maskDest, maskWidth);
+    if (likely(pix != nullptr)) {
+        maskColorMap->getGrayLine (pix, maskDest, maskWidth);
+    }
   }
 
   maskImgStr->close();