New submission from Larry Hastings <la...@hastings.org>:

#15261 shows us that Windows can crash if you pass in an invalid file handle to 
Windows POSIX-y functions.  We should ensure that functions which accept 
path-as-an-int-fd guard against this where necessary.

I propose a macro, something like

#ifdef MS_WINDOWS
#define FD_GUARD(fd) (_PyVerify_fd(fd) ? (fd) : INVALID_HANDLE_VALUE)
#else
#define FD_GUARD(fd) (fd)
#endif

----------
assignee: larry
components: Library (Lib)
messages: 164722
nosy: amaury.forgeotdarc, larry, sbt
priority: normal
severity: normal
stage: needs patch
status: open
title: Guard against invalid file handles in os functions
type: behavior
versions: Python 3.3

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Python tracker <rep...@bugs.python.org>
<http://bugs.python.org/issue15263>
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