Mercurial > cpython-lru_cache-weakref

diff Objects/unicodeobject.c @ 81625:f4d30d1a529e 2.7

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Issue #16335: Fix integer overflow in unicode-escape decoder.
author Serhiy Storchaka <storchaka@gmail.com>
date Mon, 21 Jan 2013 11:48:24 +0200
parents d544873d62e9
children 7c8ad0d02664
line wrap: on
line diff
--- a/Objects/unicodeobject.c	Sun Jan 20 23:29:28 2013 +0100
+++ b/Objects/unicodeobject.c	Mon Jan 21 11:48:24 2013 +0200
@@ -2899,7 +2899,8 @@
                     /* found a name.  look it up in the unicode database */
                     message = "unknown Unicode character name";
                     s++;
-                    if (ucnhash_CAPI->getcode(NULL, start, (int)(s-start-1), &chr))
+                    if (s - start - 1 <= INT_MAX &&
+                        ucnhash_CAPI->getcode(NULL, start, (int)(s-start-1), &chr))
                         goto store;
                 }
             }