[poppler] poppler/Linearization.cc

[GitLab Mirror]

 poppler/Linearization.cc |    2 ++
 1 file changed, 2 insertions(+)

New commits:
commit 1e3b202760aad7737afe9a57d5f1acd66f6be2ee
Author: Even Rouault <even.rouault at spatialys.com>
Date:   Tue Nov 26 16:53:01 2019 +0100

    Do not recognized as linearized documents that lack a valid Linearized dict
    
    Documents such as the one at https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=19098
    (under embargo at the time of writing) have the structure of the Linearized dict
    but lack valid integer object numbers. Poppler still manages to make some sense
    of that, but not recognizing such corrupted files as linearized would help the
    consumer (GDAL) that does admitedly nasty things around Poppler...

diff --git a/poppler/Linearization.cc b/poppler/Linearization.cc
index 0fea7539..cce78d76 100644
--- a/poppler/Linearization.cc
+++ b/poppler/Linearization.cc
@@ -36,6 +36,8 @@ Linearization::Linearization (BaseStream *str)
     if (!(obj5.isNum() && obj5.getNum() > 0)) {
        linDict.setToNull();
     }
+  } else {
+    linDict.setToNull();
   }
   delete parser;
 }