arch/arm64/kvm/guest.c in KVM in the Linux kernel prior to 4.18.12 on the arm64 platform mishandles the KVM_SET_ON_REG ioctl. This is exploitable by attackers who can create virtual machines. An attacker can arbitrarily redirect the hypervisor flow of control (with full register control). An attacker can also cause a denial of service (hypervisor panic) via an illegal exception return. This occurs because of insufficient restrictions on userspace access to the core register file, and because PSTATE.M validation does not prevent unintended execution modes.
Vulnerable Product | Search on Vulmon | Subscribe to Product |
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linux linux kernel |
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debian debian linux 9.0 |
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canonical ubuntu linux 16.04 |
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canonical ubuntu linux 14.04 |