kernel_optimize_test/virt/kvm
Andy Honig 338c7dbadd KVM: Improve create VCPU parameter (CVE-2013-4587)
In multiple functions the vcpu_id is used as an offset into a bitfield.  Ag
malicious user could specify a vcpu_id greater than 255 in order to set or
clear bits in kernel memory.  This could be used to elevate priveges in the
kernel.  This patch verifies that the vcpu_id provided is less than 255.
The api documentation already specifies that the vcpu_id must be less than
max_vcpus, but this is currently not checked.

Reported-by: Andrew Honig <ahonig@google.com>
Cc: stable@vger.kernel.org
Signed-off-by: Andrew Honig <ahonig@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2013-12-12 22:39:33 +01:00
..
arm
assigned-dev.c
async_pf.c
async_pf.h
coalesced_mmio.c
coalesced_mmio.h
eventfd.c
ioapic.c
ioapic.h
iodev.h
iommu.c
irq_comm.c
irqchip.c
Kconfig
kvm_main.c KVM: Improve create VCPU parameter (CVE-2013-4587) 2013-12-12 22:39:33 +01:00
vfio.c