diff options
| author | Boris Ostrovsky <boris.ostrovsky@oracle.com> | 2019-10-30 19:01:31 +0000 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-02-11 04:34:11 -0800 |
| commit | 25a7898937f4a9f32ca2d1e9b7f5f07176af8037 (patch) | |
| tree | 47256d94ebdae77226b1fec1bb1b966118deb774 /include/linux/elfnote.h | |
| parent | 18eccafaa8b02370862f81e3be24dada581ab72f (diff) | |
x86/kvm: Be careful not to clear KVM_VCPU_FLUSH_TLB bit
commit 8c6de56a42e0c657955e12b882a81ef07d1d073e upstream.
kvm_steal_time_set_preempted() may accidentally clear KVM_VCPU_FLUSH_TLB
bit if it is called more than once while VCPU is preempted.
This is part of CVE-2019-3016.
(This bug was also independently discovered by Jim Mattson
<jmattson@google.com>)
Signed-off-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Reviewed-by: Joao Martins <joao.m.martins@oracle.com>
Cc: stable@vger.kernel.org
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'include/linux/elfnote.h')
0 files changed, 0 insertions, 0 deletions