A use-after-free flaw was found in the VirtFS, host directory sharing via Plan 9 File System(9pfs) support in QEMU. It could occur due to a race condition while accessing files on a shared host directory. A user inside guest could use this flaw to crash the QEMU process resulting in DoS issue. Upstream patch: --------------- -> https://lists.gnu.org/archive/html/qemu-devel/2018-11/msg01139.html -> https://lists.gnu.org/archive/html/qemu-devel/2018-11/msg02795.html http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-19364
