{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2022-50224",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2025-06-18T10:57:27.431Z",
        "datePublished": "2025-06-18T11:03:57.954Z",
        "dateUpdated": "2026-05-23T15:23:52.140Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-05-23T15:23:52.140Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nKVM: x86/mmu: Treat NX as a valid SPTE bit for NPT\n\nTreat the NX bit as valid when using NPT, as KVM will set the NX bit when\nthe NX huge page mitigation is enabled (mindblowing) and trigger the WARN\nthat fires on reserved SPTE bits being set.\n\nKVM has required NX support for SVM since commit b26a71a1a5b9 (\"KVM: SVM:\nRefuse to load kvm_amd if NX support is not available\") for exactly this\nreason, but apparently it never occurred to anyone to actually test NPT\nwith the mitigation enabled.\n\n  ------------[ cut here ]------------\n  spte = 0x800000018a600ee7, level = 2, rsvd bits = 0x800f0000001fe000\n  WARNING: CPU: 152 PID: 15966 at arch/x86/kvm/mmu/spte.c:215 make_spte+0x327/0x340 [kvm]\n  Hardware name: Google, Inc. Arcadia_IT_80/Arcadia_IT_80, BIOS 10.48.0 01/27/2022\n  RIP: 0010:make_spte+0x327/0x340 [kvm]\n  Call Trace:\n   <TASK>\n   tdp_mmu_map_handle_target_level+0xc3/0x230 [kvm]\n   kvm_tdp_mmu_map+0x343/0x3b0 [kvm]\n   direct_page_fault+0x1ae/0x2a0 [kvm]\n   kvm_tdp_page_fault+0x7d/0x90 [kvm]\n   kvm_mmu_page_fault+0xfb/0x2e0 [kvm]\n   npf_interception+0x55/0x90 [kvm_amd]\n   svm_invoke_exit_handler+0x31/0xf0 [kvm_amd]\n   svm_handle_exit+0xf6/0x1d0 [kvm_amd]\n   vcpu_enter_guest+0xb6d/0xee0 [kvm]\n   ? kvm_pmu_trigger_event+0x6d/0x230 [kvm]\n   vcpu_run+0x65/0x2c0 [kvm]\n   kvm_arch_vcpu_ioctl_run+0x355/0x610 [kvm]\n   kvm_vcpu_ioctl+0x551/0x610 [kvm]\n   __se_sys_ioctl+0x77/0xc0\n   __x64_sys_ioctl+0x1d/0x20\n   do_syscall_64+0x44/0xa0\n   entry_SYSCALL_64_after_hwframe+0x46/0xb0\n   </TASK>\n  ---[ end trace 0000000000000000 ]---"
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "arch/x86/kvm/mmu/mmu.c"
                    ],
                    "versions": [
                        {
                            "version": "b8e8c8303ff28c61046a4d0f6ea99aea609a7dc0",
                            "lessThan": "6271f2854b9233702e236e576b885a876dde4889",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "b8e8c8303ff28c61046a4d0f6ea99aea609a7dc0",
                            "lessThan": "6c6ab524cfae0799e55c82b2c1d61f1af0156f8d",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "a7ad7943b84fae87f5be18f05025c51ae103f732",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "bb16a6ba5d1ed79b40caea8d924e237f63205b7c",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "5219505fcbb640e273a0d51c19c38de0100ec5a9",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "78ffa84f00ff6b19f00c0e6dfe1870aba0db4025",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "4.9.202",
                            "lessThan": "4.10",
                            "status": "affected",
                            "versionType": "semver"
                        },
                        {
                            "version": "4.14.154",
                            "lessThan": "4.15",
                            "status": "affected",
                            "versionType": "semver"
                        },
                        {
                            "version": "4.19.84",
                            "lessThan": "4.20",
                            "status": "affected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.3.11",
                            "lessThan": "5.4",
                            "status": "affected",
                            "versionType": "semver"
                        }
                    ]
                },
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "affected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "arch/x86/kvm/mmu/mmu.c"
                    ],
                    "versions": [
                        {
                            "version": "5.4",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "5.4",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.19.2",
                            "lessThanOrEqual": "5.19.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.0",
                            "lessThanOrEqual": "*",
                            "status": "unaffected",
                            "versionType": "original_commit_for_fix"
                        }
                    ]
                }
            ],
            "cpeApplicability": [
                {
                    "nodes": [
                        {
                            "operator": "OR",
                            "negate": false,
                            "cpeMatch": [
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.4",
                                    "versionEndExcluding": "5.19.2"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.4",
                                    "versionEndExcluding": "6.0"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "4.9.202"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "4.14.154"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "4.19.84"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.3.11"
                                }
                            ]
                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/6271f2854b9233702e236e576b885a876dde4889"
                },
                {
                    "url": "https://git.kernel.org/stable/c/6c6ab524cfae0799e55c82b2c1d61f1af0156f8d"
                }
            ],
            "title": "KVM: x86/mmu: Treat NX as a valid SPTE bit for NPT",
            "x_generator": {
                "engine": "bippy-1.2.0"
            }
        }
    }
}