[Python-checkins] cpython (3.2): Fix out of bound read in UTF-32 decoder on "narrow Unicode" builds.
serhiy.storchaka
python-checkins at python.org
Tue Jan 8 21:47:19 CET 2013
http://hg.python.org/cpython/rev/bf347198fbaf
changeset: 81327:bf347198fbaf
branch: 3.2
parent: 81323:d5df9ed118c5
user: Serhiy Storchaka <storchaka at gmail.com>
date: Tue Jan 08 22:45:42 2013 +0200
summary:
Fix out of bound read in UTF-32 decoder on "narrow Unicode" builds.
files:
Objects/unicodeobject.c | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/Objects/unicodeobject.c b/Objects/unicodeobject.c
--- a/Objects/unicodeobject.c
+++ b/Objects/unicodeobject.c
@@ -3182,7 +3182,7 @@
/* On narrow builds we split characters outside the BMP into two
codepoints => count how much extra space we need. */
#ifndef Py_UNICODE_WIDE
- for (qq = q; qq < e; qq += 4)
+ for (qq = q; e - qq >= 4; qq += 4)
if (qq[iorder[2]] != 0 || qq[iorder[3]] != 0)
pairs++;
#endif
--
Repository URL: http://hg.python.org/cpython
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