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| author | Marios Pomonis <pomonis@google.com> | 2019-12-11 23:47:49 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-02-15 00:31:04 +0300 |
| commit | 1c2107a666e063943224b15b8839863e7f2f5176 (patch) | |
| tree | aad4b3e6e287fe14d30d7faf9e5f36136b45338f /security | |
| parent | ff1995435c546d350ea785b01995a5cfa4cfc12a (diff) | |
| download | linux-1c2107a666e063943224b15b8839863e7f2f5176.tar.xz | |
KVM: x86: Protect MSR-based index computations from Spectre-v1/L1TF attacks in x86.c
commit 6ec4c5eee1750d5d17951c4e1960d953376a0dda upstream.
This fixes a Spectre-v1/L1TF vulnerability in set_msr_mce() and
get_msr_mce().
Both functions contain index computations based on the
(attacker-controlled) MSR number.
Fixes: 890ca9aefa78 ("KVM: Add MCE support")
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
Reviewed-by: Jim Mattson <jmattson@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'security')
0 files changed, 0 insertions, 0 deletions