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Issue #20191: Fixed a crash in resource.prlimit() when pass a sequence that

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doesn't own its elements as limits.
This commit is contained in:
Serhiy Storchaka 2016-12-19 08:04:15 +02:00
parent 4ec1590fbf
commit b94eef2ae3
3 changed files with 48 additions and 33 deletions
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14
Lib/test/test_resource.py
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@ -158,6 +158,20 @@ class ResourceTest(unittest.TestCase):
self.assertEqual(resource.prlimit(0, resource.RLIMIT_AS, limit),
limit)
# Issue 20191: Reference counting bug
@unittest.skipUnless(hasattr(resource, 'prlimit'), 'no prlimit')
@support.requires_linux_version(2, 6, 36)
def test_prlimit_refcount(self):
class BadSeq:
def __len__(self):
return 2
def __getitem__(self, key):
return limits[key] - 1 # new reference
limits = resource.getrlimit(resource.RLIMIT_AS)
self.assertEqual(resource.prlimit(0, resource.RLIMIT_AS, BadSeq()),
limits)
def test_main(verbose=None):
support.run_unittest(ResourceTest)