CVE-2024-46707

In the Linux kernel, the following vulnerability has been resolved:<br /> <br /> KVM: arm64: Make ICC_*SGI*_EL1 undef in the absence of a vGICv3<br /> <br /> On a system with a GICv3, if a guest hasn&amp;#39;t been configured with<br /> GICv3 and that the host is not capable of GICv2 emulation,<br /> a write to any of the ICC_*SGI*_EL1 registers is trapped to EL2.<br /> <br /> We therefore try to emulate the SGI access, only to hit a NULL<br /> pointer as no private interrupt is allocated (no GIC, remember?).<br /> <br /> The obvious fix is to give the guest what it deserves, in the<br /> shape of a UNDEF exception.