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CVE-2015-4692

Published: 22 June 2015

The kvm_apic_has_events function in arch/x86/kvm/lapic.h in the Linux kernel through 4.1.3 allows local users to cause a denial of service (NULL pointer dereference and system crash) or possibly have unspecified other impact by leveraging /dev/kvm access for an ioctl call.

From the Ubuntu Security Team

A flaw was discovered in the kvm (kernel virtual machine) subsystem's kvm_apic_has_events function. A unprivileged local user could exploit this flaw to cause a denial of service (system crash).

Notes

AuthorNote
jdstrand
android kernels (flo, goldfish, grouper, maguro, mako and manta) are
not supported on the Ubuntu Touch 14.10 and earlier preview kernels
linux-lts-saucy no longer receives official support
linux-lts-quantal no longer receives official support
Priority

Low

Status

Package Release Status
linux
Launchpad, Ubuntu, Debian
upstream
Released (4.2~rc1)
Patches:
Introduced by

66450a21f99636af4fafac2afd33f1a40631bc3a

Fixed by ce40cd3fc7fa40a6119e5fe6c0f2bc0eb4541009
linux-armadaxp
Launchpad, Ubuntu, Debian
upstream
Released (4.2~rc1)
This package is not directly supported by the Ubuntu Security Team
linux-aws
Launchpad, Ubuntu, Debian
upstream
Released (4.2~rc1)
linux-ec2
Launchpad, Ubuntu, Debian
upstream
Released (4.2~rc1)
linux-flo
Launchpad, Ubuntu, Debian
upstream
Released (4.2~rc1)
linux-fsl-imx51
Launchpad, Ubuntu, Debian
upstream
Released (4.2~rc1)
linux-gke
Launchpad, Ubuntu, Debian
upstream
Released (4.2~rc1)
linux-goldfish
Launchpad, Ubuntu, Debian
upstream
Released (4.2~rc1)
linux-grouper
Launchpad, Ubuntu, Debian
upstream
Released (4.2~rc1)
linux-hwe
Launchpad, Ubuntu, Debian
upstream
Released (4.2~rc1)
linux-hwe-edge
Launchpad, Ubuntu, Debian
upstream
Released (4.2~rc1)
linux-linaro-omap
Launchpad, Ubuntu, Debian
upstream
Released (4.2~rc1)
linux-linaro-shared
Launchpad, Ubuntu, Debian
upstream
Released (4.2~rc1)
linux-linaro-vexpress
Launchpad, Ubuntu, Debian
upstream
Released (4.2~rc1)
linux-lts-quantal
Launchpad, Ubuntu, Debian
upstream
Released (4.2~rc1)
This package is not directly supported by the Ubuntu Security Team
linux-lts-raring
Launchpad, Ubuntu, Debian
upstream
Released (4.2~rc1)
linux-lts-saucy
Launchpad, Ubuntu, Debian
upstream
Released (4.2~rc1)
This package is not directly supported by the Ubuntu Security Team
linux-lts-trusty
Launchpad, Ubuntu, Debian
upstream
Released (4.2~rc1)
linux-lts-utopic
Launchpad, Ubuntu, Debian
upstream
Released (4.2~rc1)
linux-lts-vivid
Launchpad, Ubuntu, Debian
upstream
Released (4.2~rc1)
linux-lts-wily
Launchpad, Ubuntu, Debian
upstream
Released (4.2~rc1)
linux-lts-xenial
Launchpad, Ubuntu, Debian
upstream
Released (4.2~rc1)
linux-maguro
Launchpad, Ubuntu, Debian
upstream
Released (4.2~rc1)
linux-mako
Launchpad, Ubuntu, Debian
upstream
Released (4.2~rc1)
linux-manta
Launchpad, Ubuntu, Debian
upstream
Released (4.2~rc1)
linux-mvl-dove
Launchpad, Ubuntu, Debian
upstream
Released (4.2~rc1)
linux-qcm-msm
Launchpad, Ubuntu, Debian
upstream
Released (4.2~rc1)
linux-raspi2
Launchpad, Ubuntu, Debian
upstream
Released (4.2~rc1)
linux-snapdragon
Launchpad, Ubuntu, Debian
upstream
Released (4.2~rc1)
linux-ti-omap4
Launchpad, Ubuntu, Debian
upstream
Released (4.2~rc1)