| commit | 2febc839133280d5a5e8e1179c94ea674489dae2 | [log] [tgz] |
|---|---|---|
| author | Andy Honig <ahonig@google.com> | Wed Aug 27 14:42:54 2014 -0700 |
| committer | Paolo Bonzini <pbonzini@redhat.com> | Fri Oct 24 13:21:14 2014 +0200 |
| tree | 4c3f4f0ab1273a88cd7edf639c944ad4212a13c0 | |
| parent | 8b3c3104c3f4f706e99365c3e0d2aa61b95f969f [diff] |
KVM: x86: Improve thread safety in pit There's a race condition in the PIT emulation code in KVM. In __kvm_migrate_pit_timer the pit_timer object is accessed without synchronization. If the race condition occurs at the wrong time this can crash the host kernel. This fixes CVE-2014-3611. Cc: stable@vger.kernel.org Signed-off-by: Andrew Honig <ahonig@google.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>