CVE-2016-1922

QEMU (aka Quick Emulator) built with the TPR optimization for 32-bit
Windows guests support is vulnerable to a null pointer dereference flaw. It
occurs while doing I/O port write operations via hmp interface. In that,
‘current_cpu’ remains null, which leads to the null pointer dereference. A
user or process could use this flaw to crash the QEMU instance, resulting
in DoS issue.

Bugs

• <https://bugzilla.redhat.com/show_bug.cgi?id=1283934&gt;
• <http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=811201&gt;