[issue5385] mmap can crash after resize failure (windows)

[Hirokazu Yamamoto]

New submission from Hirokazu Yamamoto <ocean-city at m2.ccsnet.ne.jp>:

On windows, after mmap.resize fails, self->map_handle
becomes NULL, but it should become INVALID_HANDLE_VALUE otherwise
CHECK_VALID is passed through, it can cause crash like bellow.

import mmap
m = mmap.mmap(-1, 5)
try:
    m.resize(-1)
except WindowsError:
    pass
m[0] = '1' # crash

The patch is in r69942.

----------
components: Extension Modules
messages: 82852
nosy: ocean-city
severity: normal
status: open
title: mmap can crash after resize failure (windows)
versions: Python 2.6, Python 2.7, Python 3.0, Python 3.1

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue5385>
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