CVE-2012-4461
Not scored
CVE-2012-4461
The KVM subsystem in the Linux kernel before 3.6.9, when running on hosts that use qemu userspace without XSAVE, allows local users to cause a denial of service (kernel OOPS) by using the KVM_SET_SREGS ioctl to set the X86_CR4_OSXSAVE bit in the guest cr4 register, then calling the KVM_RUN ioctl.
Exploit probability
0.4%
Published
January 22, 2013
Required by
Not available
Last source change
April 10, 2026
03 / CONNECTIONS
Connected vulnerabilities
04 / EVIDENCE
Source records
Open Source Vulnerabilities
CVE-2012-4461
View original source
The KVM subsystem in the Linux kernel before 3.6.9, when running on hosts that use qemu userspace without XSAVE, allows local users to cause a denial of service (kernel OOPS) by using the KVM_SET_SREGS ioctl to set the X86_CR4_OSXSAVE bit in the guest cr4 register, then calling the KVM_RUN ioctl.
05 / REFERENCES
Further evidence
- http://article.gmane.org/gmane.comp.emulators.kvm.devel/100742
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux.git%3Ba=commit%3Bh=6d1068b3a98519247d8ba4ec85cd40ac136dbdf9
- http://lists.opensuse.org/opensuse-security-announce/2013-06/msg00005.html
- http://rhn.redhat.com/errata/RHSA-2013-0223.html
- http://rhn.redhat.com/errata/RHSA-2013-0882.html
- http://secunia.com/advisories/51160
- http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.6.9
- http://www.openwall.com/lists/oss-security/2012/11/06/14
- http://www.securityfocus.com/bid/56414
- https://bugzilla.redhat.com/show_bug.cgi?id=862900
- https://www.suse.com/support/update/announcement/2012/suse-su-20121679-1.html