[poppler] poppler/Function.cc

[Albert Astals Cid]

 poppler/Function.cc |    4 ++++
 1 file changed, 4 insertions(+)

New commits:
commit b3425dd3261679958cd56c0f71995c15d2124433
Author: Albert Astals Cid <aacid at kde.org>
Date:   Tue Dec 22 22:50:33 2015 +0100

    Do not crash on invalid files
    
    Bug #93476

diff --git a/poppler/Function.cc b/poppler/Function.cc
index 67283df..ee5afc1 100644
--- a/poppler/Function.cc
+++ b/poppler/Function.cc
@@ -577,6 +577,10 @@ ExponentialFunction::ExponentialFunction(Object *funcObj, Dict *dict) {
       goto err2;
     }
     n = obj1.arrayGetLength();
+    if (unlikely(n > funcMaxOutputs)) {
+      error(errSyntaxError, -1, "Function's C0 array is wrong length");
+      n = funcMaxOutputs;
+    }
     for (i = 0; i < n; ++i) {
       obj1.arrayGet(i, &obj2);
       if (!obj2.isNum()) {