New submission from jvoisin <jvoi...@google.com>:
The attached file produces the following stacktrace when opened via
`tarfile.open`, on Python 3.7.5rc1:
```
$ cat test.py
import sys
import tarfile
tarfile.open(sys.argv[1])
$ python3 test.py ./crash-c10c9839d987fa0df6912cb4084f43f3ce08ca82
Traceback (most recent call last):
File "test.py", line 4, in <module>
tarfile.open(sys.argv[1])
File "/usr/lib/python3.7/tarfile.py", line 1573, in open
return func(name, "r", fileobj, **kwargs)
File "/usr/lib/python3.7/tarfile.py", line 1645, in gzopen
t = cls.taropen(name, mode, fileobj, **kwargs)
File "/usr/lib/python3.7/tarfile.py", line 1621, in taropen
return cls(name, mode, fileobj, **kwargs)
File "/usr/lib/python3.7/tarfile.py", line 1484, in __init__
self.firstmember = self.next()
File "/usr/lib/python3.7/tarfile.py", line 2289, in next
tarinfo = self.tarinfo.fromtarfile(self)
File "/usr/lib/python3.7/tarfile.py", line 1094, in fromtarfile
buf = tarfile.fileobj.read(BLOCKSIZE)
File "/usr/lib/python3.7/gzip.py", line 276, in read
return self._buffer.read(size)
File "/usr/lib/python3.7/_compression.py", line 68, in readinto
data = self.read(len(byte_view))
File "/usr/lib/python3.7/gzip.py", line 471, in read
uncompress = self._decompressor.decompress(buf, size)
zlib.error: Error -3 while decompressing data: invalid distances se
```
----------
components: Library (Lib)
files: crash-c10c9839d987fa0df6912cb4084f43f3ce08ca82
messages: 358337
nosy: jvoisin
priority: normal
severity: normal
status: open
title: zlib.error with tarfile.open
type: behavior
versions: Python 3.7
Added file:
https://bugs.python.org/file48774/crash-c10c9839d987fa0df6912cb4084f43f3ce08ca82
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Python tracker <rep...@bugs.python.org>
<https://bugs.python.org/issue39039>
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