Description
Race condition in the __kvm_migrate_pit_timer function in arch/x86/kvm/i8254.c in the KVM subsystem in the Linux kernel through 3.17.2 allows guest OS users to cause a denial of service (host OS crash) by leveraging incorrect PIT emulation.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
n/a n/a
n/aaffected
References
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=2febc839133280d5a5e8e1179c94ea674489dae2 ↗
- http://www.ubuntu.com/usn/USN-2491-1 ↗
- http://www.ubuntu.com/usn/USN-2418-1 ↗
- http://www.ubuntu.com/usn/USN-2417-1 ↗
- http://www.debian.org/security/2014/dsa-3060 ↗
- https://bugzilla.redhat.com/show_bug.cgi?id=1144878 ↗
- http://rhn.redhat.com/errata/RHSA-2015-0869.html ↗
- https://github.com/torvalds/linux/commit/2febc839133280d5a5e8e1179c94ea674489dae2 ↗
- http://www.ubuntu.com/usn/USN-2394-1 ↗
- http://rhn.redhat.com/errata/RHSA-2015-0284.html ↗
- http://www.openwall.com/lists/oss-security/2014/10/24/9 ↗
- http://rhn.redhat.com/errata/RHSA-2015-0126.html ↗