vCPU IDs above 2^32 are currently not rejected as invalid for KVM_CREATE_VCPU and KVM_SET_BOOT_CPU_ID. Below patches fix this and add selftests for it. Please apply! Thanks, Mathias v1: https://lore.kernel.org/kvm/20240605220504.2941958-1-minipli@xxxxxxxxxxxxxx/ changes v1->v2: - add comment and build bug to make truncation check more obvious (Sean) - handle KVM_SET_BOOT_CPU_ID similar Mathias Krause (4): KVM: Reject overly excessive IDs in KVM_CREATE_VCPU KVM: selftests: Test vCPU IDs above 2^32 KVM: Limit check IDs for KVM_SET_BOOT_CPU_ID KVM: selftests: Test vCPU boot IDs above 2^32 arch/x86/kvm/x86.c | 12 +++++++++--- .../selftests/kvm/x86_64/max_vcpuid_cap_test.c | 11 ++++++++++- tools/testing/selftests/kvm/x86_64/set_boot_cpu_id.c | 11 +++++++++++ virt/kvm/kvm_main.c | 10 +++++++++- 4 files changed, 39 insertions(+), 5 deletions(-) -- 2.30.2
