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authorMarios Pomonis <pomonis@google.com>2019-12-11 12:47:42 -0800
committerPaolo Bonzini <pbonzini@redhat.com>2020-01-27 19:59:36 +0100
commit8618793750071d66028584a83ed0b4fa7eb4f607 (patch)
tree26c516c0164da4d28f7a6ffac5e5187db4551827 /tools/perf/scripts/python/export-to-postgresql.py
parentKVM: x86: Protect x86_decode_insn from Spectre-v1/L1TF attacks (diff)
downloadlinux-dev-8618793750071d66028584a83ed0b4fa7eb4f607.tar.xz
linux-dev-8618793750071d66028584a83ed0b4fa7eb4f607.zip
KVM: x86: Protect kvm_hv_msr_[get|set]_crash_data() from Spectre-v1/L1TF attacks
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>
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