Spectre V2 : System may be vulnerable to spectre v2

[Cristian Aravena Romero]

Hello,

dmesg:
[ 15.063928] vboxdrv: loading out-of-tree module taints kernel.
[ 15.063942] Spectre V2 : System may be vulnerable to spectre v2
[ 15.063949] vboxdrv: loading module not compiled with retpoline compiler.
[ 15.064588] vboxdrv: module verification failed: signature and/or required key missing - tainting kernel
[ 15.083726] vboxdrv: Found 4 processor cores
[ 15.100892] vboxdrv: TSC mode is Invariant, tentative frequency 1496597942 Hz
[ 15.100896] vboxdrv: Successfully loaded version 5.2.6_Ubuntu (interface 0x00290000)
[ 15.116501] Spectre V2 : System may be vulnerable to spectre v2
[ 15.116513] vboxnetflt: loading module not compiled with retpoline compiler.
[ 15.117339] VBoxNetFlt: Successfully started.
[ 15.130230] Spectre V2 : System may be vulnerable to spectre v2
[ 15.130239] vboxnetadp: loading module not compiled with retpoline compiler.
[ 15.131082] VBoxNetAdp: Successfully started.
[ 15.145823] Spectre V2 : System may be vulnerable to spectre v2
[ 15.145830] vboxpci: loading module not compiled with retpoline compiler.
[ 15.146563] VBoxPciLinuxInit
[ 15.153612] vboxpci: IOMMU not found (not registered)

Regards,
--
Cristian

ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: virtualbox 5.2.6-dfsg-3build1
ProcVersionSignature: Ubuntu 4.15.0-9.10-generic 4.15.2
Uname: Linux 4.15.0-9-generic x86_64
ApportVersion: 2.20.8-0ubuntu8
Architecture: amd64
CurrentDesktop: ubuntu-communitheme:ubuntu:GNOME
Date: Thu Feb 8 21:09:02 2018
InstallationDate: Installed on 2017-10-13 (118 days ago)
InstallationMedia: Ubuntu 17.10 "Artful Aardvark" - Alpha amd64 (20170926)
SourcePackage: virtualbox
UpgradeStatus: No upgrade log present (probably fresh install)