Description

Race condition in arch/x86/kvm/x86.c in the Linux kernel before 2.6.38 allows L2 guest OS users to cause a denial of service (L1 guest OS crash) via a crafted instruction that triggers an L2 emulation failure report, a similar issue to CVE-2014-7842.

References

http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=fc3a9157d3148ab91039c75423da8ef97be3e105

http://lists.opensuse.org/opensuse-security-announce/2015-04/msg00000.html

http://mirror.linux.org.au/linux/kernel/v2.6/ChangeLog-2.6.38

http://rhn.redhat.com/errata/RHSA-2016-0855.html

http://www.openwall.com/lists/oss-security/2014/11/13/7

http://www.oracle.com/technetwork/topics/security/linuxbulletinapr2016-2952096.html

http://www.oracle.com/technetwork/topics/security/linuxbulletinjan2016-2867209.html

http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2015-2719645.html

http://www.securityfocus.com/bid/71363

https://bugzilla.redhat.com/show_bug.cgi?id=1163762

https://github.com/torvalds/linux/commit/fc3a9157d3148ab91039c75423da8ef97be3e105

Details

Risk Information

CVSS v2