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| author | Marios Pomonis <pomonis@google.com> | 2019-12-11 12:47:42 -0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-02-14 16:29:57 -0500 |
| commit | 32779dea5a835c3a904030507a08944dce9e51a9 (patch) | |
| tree | 19f92bc4716b0625eed5d3fcf23270bff925ef6f /include/linux/debugobjects.h | |
| parent | 90dcf223d1f191a9d0c0b39226018834bf45695c (diff) | |
KVM: x86: Protect kvm_hv_msr_[get|set]_crash_data() from Spectre-v1/L1TF attacks
commit 8618793750071d66028584a83ed0b4fa7eb4f607 upstream.
This fixes Spectre-v1/L1TF vulnerabilities in kvm_hv_msr_get_crash_data()
and kvm_hv_msr_set_crash_data().
These functions contain index computations that use the
(attacker-controlled) MSR number.
Fixes: e7d9513b60e8 ("kvm/x86: added hyper-v crash msrs into kvm hyperv context")
Signed-off-by: Nick Finco <nifi@google.com>
Signed-off-by: Marios Pomonis <pomonis@google.com>
Reviewed-by: Andrew Honig <ahonig@google.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/debugobjects.h')
0 files changed, 0 insertions, 0 deletions