[poppler] poppler/Stream.cc

[Albert Astals Cid]

 poppler/Stream.cc |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

New commits:
commit b2bbe5d5bc241c82575bf9987d295d91998ddebc
Author: Albert Astals Cid <aacid at kde.org>
Date:   Tue Jun 20 23:58:26 2017 +0200

    Fix crash in malformed document
    
    Bug #101526

diff --git a/poppler/Stream.cc b/poppler/Stream.cc
index 4ac91078..d93c560e 100644
--- a/poppler/Stream.cc
+++ b/poppler/Stream.cc
@@ -468,7 +468,7 @@ ImageStream::ImageStream(Stream *strA, int widthA, int nCompsA, int nBitsA) {
 
   nVals = width * nComps;
   inputLineSize = (nVals * nBits + 7) >> 3;
-  if (nBits <= 0 || nVals > INT_MAX / nBits - 7 || width > INT_MAX / nComps) {
+  if (nComps <= 0 || nBits <= 0 || nVals > INT_MAX / nBits - 7 || width > INT_MAX / nComps) {
     inputLineSize = -1;
   }
   inputLine = (Guchar *)gmallocn_checkoverflow(inputLineSize, sizeof(char));