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Issue #28275: Clean up to avoid use-after-free after bzip decompress failure

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This commit is contained in:
Martin Panter 2016-10-01 02:45:17 +00:00
parent 34b9d14be6
commit 38317d3318
4 changed files with 14 additions and 7 deletions
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8
Lib/test/test_lzma.py
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@ -249,11 +249,9 @@ class CompressorDecompressorTestCase(unittest.TestCase):
def test_decompressor_bug_28275(self):
# Test coverage for Issue 28275
lzd = LZMADecompressor()
for i in range(2):
try:
lzd.decompress(COMPRESSED_RAW_1)
except LZMAError:
pass
self.assertRaises(LZMAError, lzd.decompress, COMPRESSED_RAW_1)
# Previously, a second call could crash due to internal inconsistency
self.assertRaises(LZMAError, lzd.decompress, COMPRESSED_RAW_1)
# Test that LZMACompressor->LZMADecompressor preserves the input data.