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Merged revisions 88097 via svnmerge from

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  r88097 | antoine.pitrou | 2011-01-18 19:57:52 +0100 (mar., 18 janv. 2011) | 4 lines

  Issue #10451: memoryview objects could allow to mutate a readable buffer.
  Initial patch by Ross Lagerwall.
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This commit is contained in:
Antoine Pitrou 2011-01-18 19:06:19 +00:00
parent 4a70550c1c
commit 3013b16b62
3 changed files with 15 additions and 4 deletions
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11
Lib/test/test_memoryview.py
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@ -9,6 +9,7 @@ import gc
import weakref
import array
from test import test_support
import io
class AbstractMemoryTests:
@ -230,6 +231,16 @@ class AbstractMemoryTests:
gc.collect()
self.assertTrue(wr() is None, wr())
def test_writable_readonly(self):
# Issue #10451: memoryview incorrectly exposes a readonly
# buffer as writable causing a segfault if using mmap
tp = self.ro_type
if tp is None:
return
b = tp(self._source)
m = self._view(b)
i = io.BytesIO(b'ZZZZ')
self.assertRaises(TypeError, i.readinto, m)
# Variations on source objects for the buffer: bytes-like objects, then arrays
# with itemsize > 1.