CVE-2014-7842
Published: 29 November 2014
Race condition in arch/x86/kvm/x86.c in the Linux kernel before 3.17.4 allows guest OS users to cause a denial of service (guest OS crash) via a crafted application that performs an MMIO transaction or a PIO transaction to trigger a guest userspace emulation error report, a similar issue to CVE-2010-5313.
From the Ubuntu security team
A race condition with MMIO and PIO transactions in the KVM (Kernel Virtual Machine) subsystem of the Linux kernel was discovered. A guest OS user could exploit this flaw to cause a denial of service (guest OS crash) via a specially crafted application.
Priority
Medium
Status
| Package | Release | Status |
|---|---|---|
|
linux Launchpad, Ubuntu, Debian |
upstream |
Released
(3.18~rc1)
|
|
linux-armadaxp Launchpad, Ubuntu, Debian |
upstream |
Released
(3.18~rc1)
|
|
linux-aws Launchpad, Ubuntu, Debian |
upstream |
Released
(3.18~rc1)
|
|
linux-ec2 Launchpad, Ubuntu, Debian |
upstream |
Released
(3.18~rc1)
|
|
linux-flo Launchpad, Ubuntu, Debian |
upstream |
Released
(3.18~rc1)
|
|
linux-fsl-imx51 Launchpad, Ubuntu, Debian |
upstream |
Released
(3.18~rc1)
|
|
linux-gke Launchpad, Ubuntu, Debian |
upstream |
Released
(3.18~rc1)
|
|
linux-goldfish Launchpad, Ubuntu, Debian |
upstream |
Released
(3.18~rc1)
|
|
linux-grouper Launchpad, Ubuntu, Debian |
upstream |
Released
(3.18~rc1)
|
|
linux-hwe Launchpad, Ubuntu, Debian |
upstream |
Released
(3.18~rc1)
|
|
linux-hwe-edge Launchpad, Ubuntu, Debian |
upstream |
Released
(3.18~rc1)
|
|
linux-linaro-omap Launchpad, Ubuntu, Debian |
upstream |
Released
(3.18~rc1)
|
|
linux-linaro-shared Launchpad, Ubuntu, Debian |
upstream |
Released
(3.18~rc1)
|
|
linux-linaro-vexpress Launchpad, Ubuntu, Debian |
upstream |
Released
(3.18~rc1)
|
|
linux-lts-quantal Launchpad, Ubuntu, Debian |
upstream |
Released
(3.18~rc1)
|
|
linux-lts-raring Launchpad, Ubuntu, Debian |
upstream |
Released
(3.18~rc1)
|
|
linux-lts-saucy Launchpad, Ubuntu, Debian |
upstream |
Released
(3.18~rc1)
|
|
linux-lts-trusty Launchpad, Ubuntu, Debian |
upstream |
Released
(3.18~rc1)
|
|
linux-lts-utopic Launchpad, Ubuntu, Debian |
upstream |
Released
(3.18~rc1)
|
|
linux-lts-vivid Launchpad, Ubuntu, Debian |
upstream |
Released
(3.18~rc1)
|
|
linux-lts-wily Launchpad, Ubuntu, Debian |
upstream |
Released
(3.18~rc1)
|
|
linux-lts-xenial Launchpad, Ubuntu, Debian |
upstream |
Released
(3.18~rc1)
|
|
linux-maguro Launchpad, Ubuntu, Debian |
upstream |
Released
(3.18~rc1)
|
|
linux-mako Launchpad, Ubuntu, Debian |
upstream |
Released
(3.18~rc1)
|
|
linux-manta Launchpad, Ubuntu, Debian |
upstream |
Released
(3.18~rc1)
|
|
linux-mvl-dove Launchpad, Ubuntu, Debian |
upstream |
Released
(3.18~rc1)
|
|
linux-qcm-msm Launchpad, Ubuntu, Debian |
upstream |
Released
(3.18~rc1)
|
|
linux-raspi2 Launchpad, Ubuntu, Debian |
upstream |
Released
(3.18~rc1)
|
|
linux-snapdragon Launchpad, Ubuntu, Debian |
upstream |
Released
(3.18~rc1)
|
|
linux-ti-omap4 Launchpad, Ubuntu, Debian |
upstream |
Released
(3.18~rc1)
|
Notes
| Author | Note |
|---|---|
| jdstrand | android kernels (flo, goldfish, grouper, maguro, mako and manta) are not supported on the Ubuntu Touch 14.04 preview kernels linux-lts-saucy no longer receives official support linux-lts-quantal no longer receives official support |
References
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2014-7842
- https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=fc3a9157d314 (v2.6.38-rc1)
- https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=a2b9e6c1a35a (v3.18-rc1)
- https://ubuntu.com/security/notices/USN-2464-1
- https://ubuntu.com/security/notices/USN-2465-1
- https://ubuntu.com/security/notices/USN-2466-1
- https://ubuntu.com/security/notices/USN-2467-1
- https://ubuntu.com/security/notices/USN-2468-1
- https://ubuntu.com/security/notices/USN-2463-1
- NVD
- Launchpad
- Debian