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- Linux KVM Instruction Emulation Issue[6]
- Authored by Jann Horn[7], Google Security Research[8]
-
KVM instruction emulation can run while KVM_VCPU_PREEMPTED is set, which can lead other vcpus to skip sending TLB flush IPIs. As a consequence, KVM instruction emulation can access memory through stale translations when the guest kernel thinks it has flushed all cached translations. This could potentially be used by unprivileged userspace inside a guest to compromise the guest kernel.
- SHA-256 |
16fd49b64aee26c8f9a9ad6cb4265e74537f37bede65109a50798f82ac77833b - Download[9] | Favorite[10] | View[11]
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