kernel: security and bugfix update (important)

The openSUSE 12.1 kernel was updated to fix a severe
secrutiy issue and various bugs.

Security issues fixed: CVE-2013-2094: The perf_swevent_init
function in kernel/events/core.c in the Linux kernel used
an incorrect integer data type, which allowed local users
to gain privileges via a crafted perf_event_open system
call.

CVE-2013-1774: The chase_port function in
drivers/usb/serial/io_ti.c in the Linux kernel allowed
local users to cause a denial of service (NULL pointer
dereference and system crash) via an attempted /dev/ttyUSB
read or write operation on a disconnected Edgeport USB
serial converter.

CVE-2013-1928: The do_video_set_spu_palette function in
fs/compat_ioctl.c in the Linux kernel lacked a certain
error check, which might have allowed local users to obtain
sensitive information from kernel stack memory via a
crafted VIDEO_SET_SPU_PALETTE ioctl call on a /dev/dvb
device.

CVE-2013-1796: The kvm_set_msr_common function in
arch/x86/kvm/x86.c in the Linux kernel did not ensure a
required time_page alignment during an MSR_KVM_SYSTEM_TIME
operation, which allowed guest OS users to cause a denial
of service (buffer overflow and host OS memory corruption)
or possibly have unspecified other impact via a crafted
application.

CVE-2013-1797: Use-after-free vulnerability in
arch/x86/kvm/x86.c in the Linux kernel allowed guest OS
users to cause a denial of service (host OS memory
corruption) or possibly have unspecified other impact via a
crafted application that triggers use of a guest physical
address (GPA) in (1) movable or (2) removable memory during
an MSR_KVM_SYSTEM_TIME kvm_set_msr_common operation.

CVE-2013-1798: The ioapic_read_indirect function in
virt/kvm/ioapic.c in the Linux kernel did not properly
handle a certain combination of invalid IOAPIC_REG_SELECT
and IOAPIC_REG_WINDOW operations, which allowed guest OS
users to obtain sensitive information from host OS memory
or cause a denial of service (host OS OOPS) via a crafted
application.

CVE-2013-1767: Use-after-free vulnerability in the
shmem_remount_fs function in mm/shmem.c in the Linux kernel
allowed local users to gain privileges or cause a denial of
service (system crash) by remounting a tmpfs filesystem
without specifying a required mpol (aka mempolicy) mount
option.

CVE-2013-0913: Integer overflow in
drivers/gpu/drm/i915/i915_gem_execbuffer.c in the i915
driver in the Direct Rendering Manager (DRM) subsystem in
the Linux kernel allowed local users to cause a denial of
service (heap-based buffer overflow) or possibly have
unspecified other impact via a crafted application that
triggers many relocation copies, and potentially leads to a
race condition.

Bugs fixed:

• qlge: fix dma map leak when the last chunk is not
  allocated (bnc#819519).

• TTY: fix atime/mtime regression (bnc#815745).

• fs/compat_ioctl.c: VIDEO_SET_SPU_PALETTE missing error
  check (bnc#813735).

• USB: io_ti: Fix NULL dereference in chase_port()
  (bnc#806976, CVE-2013-1774).

• KVM: Convert MSR_KVM_SYSTEM_TIME to use
  gfn_to_hva_cache_init (bnc#806980 CVE-2013-1797).

• KVM: Fix bounds checking in ioapic indirect register read
  (bnc#806980 CVE-2013-1798).

• KVM: Fix for buffer overflow in handling of
  MSR_KVM_SYSTEM_TIME (bnc#806980 CVE-2013-1796).

• kabi/severities: Allow kvm module abi changes - modules
  are self consistent

• loopdev: fix a deadlock (bnc#809748).

• block: use i_size_write() in bd_set_size() (bnc#809748).

• drm/i915: bounds check execbuffer relocation count
  (bnc#808829,CVE-2013-0913).

• tmpfs: fix use-after-free of mempolicy object
  (bnc#806138, CVE-2013-1767).