New submission from Ferringb <ferri...@gmail.com>: Roughly; tempfile's uniqueness is derived from a global random instance; while there are protections for thread access, a forked child process /will/ inherit that PRNG source, resulting in children/parent trying the same set of names.
Mostly it's proving annoying in some code I have to deal in, although it wouldn't surprise me if someone watching a known temp location could use the predictability in some fashion. As for affect, all versions of python have this; attached patch is cut against trunk. ---------- files: unique-seed-per-process-tempfile.patch keywords: patch messages: 143192 nosy: ferringb priority: normal severity: normal status: open title: tempfile PRNG reuse between parent and child process type: behavior Added file: http://bugs.python.org/file23066/unique-seed-per-process-tempfile.patch _______________________________________ Python tracker <rep...@bugs.python.org> <http://bugs.python.org/issue12856> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
