Bug#859854: qemu: CVE-2017-7377

[Michael Tokarev]

commit 39ac9c9574ccf0be731be5f1d1dfe0e5f065ca48
Author: Michael Tokarev <m...@tls.msk.ru>
Date:   Mon Apr 3 14:15:41 2017 +0300

    9pfs-fix-file-descriptor-leak-CVE-2017-7377.patch

pending d-release review (#859599)
I'll add bug# reference.

/mjt