diff options
| -rw-r--r-- | Lib/test/pickletester.py | 3 | ||||
| -rw-r--r-- | Misc/NEWS | 3 | ||||
| -rw-r--r-- | Modules/_pickle.c | 2 |
3 files changed, 7 insertions, 1 deletions
diff --git a/Lib/test/pickletester.py b/Lib/test/pickletester.py index 19704ae7ce..7ecc1053d7 100644 --- a/Lib/test/pickletester.py +++ b/Lib/test/pickletester.py @@ -1142,6 +1142,9 @@ class AbstractPickleModuleTests(unittest.TestCase): # Test issue4298 s = bytes([0x58, 0, 0, 0, 0x54]) self.assertRaises(EOFError, pickle.loads, s) + # Test issue7455 + s = b'0' + self.assertRaises(pickle.UnpicklingError, pickle.loads, s) class AbstractPersistentPicklerTests(unittest.TestCase): @@ -61,6 +61,9 @@ Core and Builtins Library ------- +- Issue #7455: Fix possible crash in cPickle on invalid input. Patch by + Victor Stinner. + - Issue #6511: ZipFile now raises BadZipfile (instead of an IOError) when opening an empty or very small file. diff --git a/Modules/_pickle.c b/Modules/_pickle.c index 0e6df34bf1..29aed7adb3 100644 --- a/Modules/_pickle.c +++ b/Modules/_pickle.c @@ -3729,7 +3729,7 @@ load_pop(UnpicklerObject *self) */ 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; |