[PATCH 0/2] kvm: Fixes for race conditions

[Suzuki K Poulose]

The two patches here fixes race conditions in the KVM hypervisor code
dealing with the shadow MMU.

The first one applies to core KVM code where mmu_notifier->ops.release()
could be called twice with one instance possibily accessing a free'd KVM
instance. Reported here :

 http://lkml.kernel.org/r/CAAeHK+x8udHKq9xa1zkTO6ax5E8Dk32HYWfaT05FMchL2cr48g@xxxxxxxxxxxxxx

The second patch is specific to arm/arm64 stage2 PGD, where there are issues
with modifications to the PGD pointer outside the mmu_lock, leading to crashes.
Reported here :
 http://lkml.kernel.org/r/febea966-3767-21ff-3c40-1a76d1399138@xxxxxxx


Suzuki K Poulose (2):
  kvm: Fix mmu_notifier release race
  kvm: arm/arm64: Fix race in resetting stage2 PGD

 arch/arm/kvm/mmu.c       | 14 +++++++-----
 include/linux/kvm_host.h |  1 +
 virt/kvm/kvm_main.c      | 59 ++++++++++++++++++++++++++++++++++++++++++------
 3 files changed, 61 insertions(+), 13 deletions(-)

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2.7.4