The create_pit_timer function in arch/x86/kvm/i8254.c in KVM 83, and possibly other versions, does not properly handle when Programmable Interval Timer (PIT) interrupt requests (IRQs) when a virtual interrupt controller (irqchip) is not available, which allows local users to cause a denial of service (NULL pointer dereference) by starting a timer.
Platform | Package | Release Date | Advisory |
---|---|---|---|
Amazon Linux 1 | kernel | 2012-03-16 10:53 | ALAS-2012-55 |
Score Type | Score | Vector | |
---|---|---|---|
Amazon Linux | CVSSv2 | 4.9 | AV:L/AC:L/Au:N/C:N/I:N/A:C |
NVD | CVSSv2 | 4.9 | AV:L/AC:L/Au:N/C:N/I:N/A:C |