[Python-checkins] cpython (3.4): reject negative data_size

[benjamin.peterson]

https://hg.python.org/cpython/rev/8b58c9328f5c
changeset:   100035:8b58c9328f5c
branch:      3.4
parent:      100028:c75802aaa4de
user:        Benjamin Peterson <benjamin at python.org>
date:        Thu Jan 21 22:02:46 2016 -0800
summary:
  reject negative data_size

files:
  Modules/zipimport.c |  4 ++++
  1 files changed, 4 insertions(+), 0 deletions(-)


diff --git a/Modules/zipimport.c b/Modules/zipimport.c
--- a/Modules/zipimport.c
+++ b/Modules/zipimport.c
@@ -1071,6 +1071,10 @@
                           &date, &crc)) {
         return NULL;
     }
+    if (data_size < 0) {
+        PyErr_Format(ZipImportError, "negative data size");
+        return NULL;
+    }
 
     fp = _Py_fopen_obj(archive, "rb");
     if (!fp) {

-- 
Repository URL: https://hg.python.org/cpython