*** This bug is a security vulnerability ***
You have been subscribed to a public security bug:
I noticed the Ubuntu kernel does not enable IBRS by default. To check
this I installed the mainline kernel where it does get enabled by
default. Please see attachments ubuntu.txt and mainline.txt.
ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: linux-image-4.13.0-37-generic 4.13.0-37.42~16.04.1
ProcVersionSignature: Ubuntu 4.13.0-37.42~16.04.1-generic 4.13.13
Uname: Linux 4.13.0-37-generic x86_64
ApportVersion: 2.20.1-0ubuntu2.15
Architecture: amd64
CurrentDesktop: Unity
Date: Wed Mar 28 13:56:46 2018
InstallationDate: Installed on 2018-03-28 (0 days ago)
InstallationMedia: Ubuntu 16.04.4 LTS "Xenial Xerus" - Release amd64 (20180228)
SourcePackage: linux-hwe
UpgradeStatus: No upgrade log present (probably fresh install)
** Affects: linux (Ubuntu)
Importance: Undecided
Status: Confirmed
** Tags: amd64 apport-bug xenial
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IBRS is not enabled by default in Ubuntu kernel
https://bugs.launchpad.net/bugs/1759688
You received this bug notification because you are a member of Kernel Packages,
which is subscribed to linux in Ubuntu.
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