On Tuesday 25 March 2008, Carsten Otte wrote:
> + case KVM_S390_SIGP_SET_PREFIX:
> + VCPU_EVENT(vcpu, 4, "interrupt: set prefix to %x",
> + inti->prefix.address);
> + vcpu->stat.deliver_prefix_signal++;
> + vcpu->arch.sie_block->prefix = inti->prefix.address;
> + vcpu->arch.sie_block->ihcpu = 0xffff;
> + break;
This smells like a security bug. What happens if the guest sets the prefix
to an address outside of its address range?
Arnd <><
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