Linux kernel 2.6.x KVM Intel VT-x extension NULL pointer reference Denial Of Service Vulnerability and repair

Affected Versions:

Linux kernel 2.6.x

Vulnerability description:

Bugtraq id: rj82cve ID: CVE-2010-0435Linux Kernel is the Kernel used by open source operating system Linux. A null pointer reference vulnerability exists when the Intel VT-x extension is enabled for the processor on the host system. If the simulator is cheated and simulated

The mov to/from DR command may trigger this NULL pointer reference because kvm_x86_ops-> (set | get) _ dr is not initialized,

Host crash.

<* Reference

Gleb Natapov ( Gleb@redhat.com)

Https://bugzilla.redhat.com/show_bug.cgi? Format = multiple & amp; id = 570528
Https://www.redhat.com/support/errata/RHSA-2010-0622.html
Https://www.redhat.com/support/errata/RHSA-2010-0627.html

*>

Vendor patch: Linux ----- the current vendor has released the upgrade patch to fix this security problem, please go to the vendor's home page download: vendor (RHSA-2010: 0627-01) and the corresponding patch: RHSA-2010: 0627-01: Important: kvm security and bug fix update link: https://www.redhat.com/support/errata/RHSA-2010-0627.html