{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2024-50017",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2024-10-21T12:17:06.063Z",
        "datePublished": "2024-10-21T18:54:07.811Z",
        "dateUpdated": "2026-09-14T11:57:45.091Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-09-14T11:57:45.091Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nx86/mm/ident_map: Use gbpages only where full GB page should be mapped.\n\nWhen ident_pud_init() uses only GB pages to create identity maps, large\nranges of addresses not actually requested can be included in the resulting\ntable; a 4K request will map a full GB.  This can include a lot of extra\naddress space past that requested, including areas marked reserved by the\nBIOS.  That allows processor speculation into reserved regions, that on UV\nsystems can cause system halts.\n\nOnly use GB pages when map creation requests include the full GB page of\nspace.  Fall back to using smaller 2M pages when only portions of a GB page\nare included in the request.\n\nNo attempt is made to coalesce mapping requests. If a request requires a\nmap entry at the 2M (pmd) level, subsequent mapping requests within the\nsame 1G region will also be at the pmd level, even if adjacent or\noverlapping such requests could have been combined to map a full GB page.\nExisting usage starts with larger regions and then adds smaller regions, so\nthis should not have any great consequence."
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "arch/x86/mm/ident_map.c"
                    ],
                    "versions": [
                        {
                            "version": "66aad4fdf2bf0af29c7decb4433dc5ec6c7c5451",
                            "lessThan": "cb2555fb0223edac9e7820f16de17ae04a39ad39",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "66aad4fdf2bf0af29c7decb4433dc5ec6c7c5451",
                            "lessThan": "fe9bab1d6441ed49dc3dd0acce4c2215e8d85447",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "66aad4fdf2bf0af29c7decb4433dc5ec6c7c5451",
                            "lessThan": "d113f9723f2bfd9c6feeb899b8ddbee6b8a6e01f",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "66aad4fdf2bf0af29c7decb4433dc5ec6c7c5451",
                            "lessThan": "d80a99892f7a992d103138fa4636b2c33abd6740",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "66aad4fdf2bf0af29c7decb4433dc5ec6c7c5451",
                            "lessThan": "a23823098ab2c277c14fc110b97d8d5c83597195",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "66aad4fdf2bf0af29c7decb4433dc5ec6c7c5451",
                            "lessThan": "cc31744a294584a36bf764a0ffa3255a8e69f036",
                            "status": "affected",
                            "versionType": "git"
                        }
                    ]
                },
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "affected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "arch/x86/mm/ident_map.c"
                    ],
                    "versions": [
                        {
                            "version": "4.12",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "4.12",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.15.221",
                            "lessThanOrEqual": "5.15.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.1.188",
                            "lessThanOrEqual": "6.1.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.6.78",
                            "lessThanOrEqual": "6.6.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.10.14",
                            "lessThanOrEqual": "6.10.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.11.3",
                            "lessThanOrEqual": "6.11.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.12",
                            "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": "4.12",
                                    "versionEndExcluding": "5.15.221"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "4.12",
                                    "versionEndExcluding": "6.1.188"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "4.12",
                                    "versionEndExcluding": "6.6.78"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "4.12",
                                    "versionEndExcluding": "6.10.14"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "4.12",
                                    "versionEndExcluding": "6.11.3"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "4.12",
                                    "versionEndExcluding": "6.12"
                                }
                            ]
                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/cb2555fb0223edac9e7820f16de17ae04a39ad39"
                },
                {
                    "url": "https://git.kernel.org/stable/c/fe9bab1d6441ed49dc3dd0acce4c2215e8d85447"
                },
                {
                    "url": "https://git.kernel.org/stable/c/d113f9723f2bfd9c6feeb899b8ddbee6b8a6e01f"
                },
                {
                    "url": "https://git.kernel.org/stable/c/d80a99892f7a992d103138fa4636b2c33abd6740"
                },
                {
                    "url": "https://git.kernel.org/stable/c/a23823098ab2c277c14fc110b97d8d5c83597195"
                },
                {
                    "url": "https://git.kernel.org/stable/c/cc31744a294584a36bf764a0ffa3255a8e69f036"
                }
            ],
            "title": "x86/mm/ident_map: Use gbpages only where full GB page should be mapped.",
            "x_generator": {
                "engine": "bippy-1.2.0"
            }
        },
        "adp": [
            {
                "metrics": [
                    {
                        "other": {
                            "type": "ssvc",
                            "content": {
                                "id": "CVE-2024-50017",
                                "role": "CISA Coordinator",
                                "options": [
                                    {
                                        "Exploitation": "none"
                                    },
                                    {
                                        "Automatable": "no"
                                    },
                                    {
                                        "Technical Impact": "partial"
                                    }
                                ],
                                "version": "2.0.3",
                                "timestamp": "2024-10-22T13:27:53.496416Z"
                            }
                        }
                    }
                ],
                "title": "CISA ADP Vulnrichment",
                "providerMetadata": {
                    "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
                    "shortName": "CISA-ADP",
                    "dateUpdated": "2024-10-22T13:28:47.817Z"
                }
            }
        ]
    }
}