[Python-checkins] r77352 - in python/trunk: Lib/test/pickletester.py Misc/NEWS Modules/cPickle.c
antoine.pitrou
python-checkins at python.org
Thu Jan 7 18:46:49 CET 2010
Author: antoine.pitrou
Date: Thu Jan 7 18:46:49 2010
New Revision: 77352
Log:
Issue #7455: Fix possible crash in cPickle on invalid input. Patch by
Florent Xicluna.
Modified:
python/trunk/Lib/test/pickletester.py
python/trunk/Misc/NEWS
python/trunk/Modules/cPickle.c
Modified: python/trunk/Lib/test/pickletester.py
==============================================================================
--- python/trunk/Lib/test/pickletester.py (original)
+++ python/trunk/Lib/test/pickletester.py Thu Jan 7 18:46:49 2010
@@ -1100,6 +1100,15 @@
exec teststr in {'__builtins__': builtins}, d
d['f']()
+ def test_bad_input(self):
+ # Test issue4298
+ s = '\x58\0\0\0\x54'
+ self.assertRaises(EOFError, self.module.loads, s)
+ # Test issue7455
+ s = '0'
+ # XXX Why doesn't pickle raise UnpicklingError?
+ self.assertRaises((IndexError, cPickle.UnpicklingError),
+ self.module.loads, s)
class AbstractPersistentPicklerTests(unittest.TestCase):
Modified: python/trunk/Misc/NEWS
==============================================================================
--- python/trunk/Misc/NEWS (original)
+++ python/trunk/Misc/NEWS Thu Jan 7 18:46:49 2010
@@ -65,6 +65,9 @@
Library
-------
+- Issue #7455: Fix possible crash in cPickle on invalid input. Patch by
+ Florent Xicluna.
+
- Issue #7092: Fix the DeprecationWarnings emitted by the standard library
when using the -3 flag. Patch by Florent Xicluna.
Modified: python/trunk/Modules/cPickle.c
==============================================================================
--- python/trunk/Modules/cPickle.c (original)
+++ python/trunk/Modules/cPickle.c Thu Jan 7 18:46:49 2010
@@ -4117,7 +4117,7 @@
*/
if (self->num_marks > 0 && self->marks[self->num_marks - 1] == len) {
self->num_marks--;
- } else if (len >= 0) {
+ } else if (len > 0) {
len--;
Py_DECREF(self->stack->data[len]);
self->stack->length = len;
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