CVE-2024-36953 — KVM: arm64: vgic-v2: Check for non-NULL vCPU in vgic_v2_parse_attr()
In the Linux kernel, the following vulnerability has been resolved: KVM: arm64: vgic-v2: Check for non-NULL vCPU in vgic_v2_parse_attr() vgic_v2_parse_attr() is responsible fo…
Published: 2024-05-30 · CVSS: 4.4 · CVSS 3.1
In the Linux kernel, the following vulnerability has been resolved: KVM: arm64: vgic-v2: Check for non-NULL vCPU in vgic_v2_parse_attr() vgic_v2_parse_attr() is responsible for finding the vCPU that matches the user-provided CPUID, which (of course) may not be valid. If the ID is invalid, kvm_get_vcpu_by_id() returns NULL, which isn't handled gracefully. Similar to the GICv3 uaccess flow, check that kvm_get_vcpu_by_id() actually returns something and fail the ioctl if not.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7