This bug was fixed in the package linux – 4.4.0-109.132. The fix was made in the kernel trace with xenial 4.132 (4.4-108.131) xenial; urgency=low) CVE-2017-5754- Revert “UBUNTU: SAUCE: SMP: temporarily disable vdso” The fix to the original commit of this commit was #1741934. It was also fix to a fix for a bug that was reported in 4.2.2-4.3.4.”]
Source: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1741934/comments/39