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Issue #24456: Fixed possible buffer over-read in adpcm2lin() and lin2adpcm()

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functions of the audioop module.
This commit is contained in:
Serhiy Storchaka 2015-06-28 17:52:09 +03:00
parent 101ff3541c
commit 449e2be12b
3 changed files with 40 additions and 14 deletions
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10
Lib/test/test_audioop.py
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@ -273,6 +273,16 @@ class TestAudioop(unittest.TestCase):
# state must be a tuple or None, not an integer
self.assertRaises(TypeError, audioop.adpcm2lin, b'\0', 1, 555)
self.assertRaises(TypeError, audioop.lin2adpcm, b'\0', 1, 555)
# Issues #24456, #24457: index out of range
self.assertRaises(ValueError, audioop.adpcm2lin, b'\0', 1, (0, -1))
self.assertRaises(ValueError, audioop.adpcm2lin, b'\0', 1, (0, 89))
self.assertRaises(ValueError, audioop.lin2adpcm, b'\0', 1, (0, -1))
self.assertRaises(ValueError, audioop.lin2adpcm, b'\0', 1, (0, 89))
# value out of range
self.assertRaises(ValueError, audioop.adpcm2lin, b'\0', 1, (-0x8001, 0))
self.assertRaises(ValueError, audioop.adpcm2lin, b'\0', 1, (0x8000, 0))
self.assertRaises(ValueError, audioop.lin2adpcm, b'\0', 1, (-0x8001, 0))
self.assertRaises(ValueError, audioop.lin2adpcm, b'\0', 1, (0x8000, 0))
def test_lin2alaw(self):
self.assertEqual(audioop.lin2alaw(datas[1], 1),