{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2025-38049",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2025-04-16T04:51:23.979Z",
        "datePublished": "2025-04-18T07:01:30.421Z",
        "dateUpdated": "2026-05-11T21:20:17.008Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-05-11T21:20:17.008Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nx86/resctrl: Fix allocation of cleanest CLOSID on platforms with no monitors\n\nCommit\n\n  6eac36bb9eb0 (\"x86/resctrl: Allocate the cleanest CLOSID by searching closid_num_dirty_rmid\")\n\nadded logic that causes resctrl to search for the CLOSID with the fewest dirty\ncache lines when creating a new control group, if requested by the arch code.\nThis depends on the values read from the llc_occupancy counters. The logic is\napplicable to architectures where the CLOSID effectively forms part of the\nmonitoring identifier and so do not allow complete freedom to choose an unused\nmonitoring identifier for a given CLOSID.\n\nThis support missed that some platforms may not have these counters.  This\ncauses a NULL pointer dereference when creating a new control group as the\narray was not allocated by dom_data_init().\n\nAs this feature isn't necessary on platforms that don't have cache occupancy\nmonitors, add this to the check that occurs when a new control group is\nallocated."
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "arch/x86/kernel/cpu/resctrl/rdtgroup.c"
                    ],
                    "versions": [
                        {
                            "version": "6eac36bb9eb0349c983313c71692c19d50b56878",
                            "lessThan": "a8a1bcc27d4607227088d80483164289b5348293",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "6eac36bb9eb0349c983313c71692c19d50b56878",
                            "lessThan": "ed5addb55e403ad6598102bcf546e068ae01fef6",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "6eac36bb9eb0349c983313c71692c19d50b56878",
                            "lessThan": "93a418fc61da13d1ee4047d4d1327990f7a2816a",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "6eac36bb9eb0349c983313c71692c19d50b56878",
                            "lessThan": "a121798ae669351ec0697c94f71c3a692b2a755b",
                            "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/kernel/cpu/resctrl/rdtgroup.c"
                    ],
                    "versions": [
                        {
                            "version": "6.9",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "6.9",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.12.23",
                            "lessThanOrEqual": "6.12.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.13.11",
                            "lessThanOrEqual": "6.13.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.14.2",
                            "lessThanOrEqual": "6.14.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.15",
                            "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": "6.9",
                                    "versionEndExcluding": "6.12.23"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.9",
                                    "versionEndExcluding": "6.13.11"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.9",
                                    "versionEndExcluding": "6.14.2"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.9",
                                    "versionEndExcluding": "6.15"
                                }
                            ]
                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/a8a1bcc27d4607227088d80483164289b5348293"
                },
                {
                    "url": "https://git.kernel.org/stable/c/ed5addb55e403ad6598102bcf546e068ae01fef6"
                },
                {
                    "url": "https://git.kernel.org/stable/c/93a418fc61da13d1ee4047d4d1327990f7a2816a"
                },
                {
                    "url": "https://git.kernel.org/stable/c/a121798ae669351ec0697c94f71c3a692b2a755b"
                }
            ],
            "title": "x86/resctrl: Fix allocation of cleanest CLOSID on platforms with no monitors",
            "x_generator": {
                "engine": "bippy-1.2.0"
            }
        },
        "adp": [
            {
                "problemTypes": [
                    {
                        "descriptions": [
                            {
                                "type": "CWE",
                                "cweId": "CWE-476",
                                "lang": "en",
                                "description": "CWE-476 NULL Pointer Dereference"
                            }
                        ]
                    }
                ],
                "metrics": [
                    {
                        "cvssV3_1": {
                            "scope": "UNCHANGED",
                            "version": "3.1",
                            "baseScore": 5.5,
                            "attackVector": "LOCAL",
                            "baseSeverity": "MEDIUM",
                            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
                            "integrityImpact": "NONE",
                            "userInteraction": "NONE",
                            "attackComplexity": "LOW",
                            "availabilityImpact": "HIGH",
                            "privilegesRequired": "LOW",
                            "confidentialityImpact": "NONE"
                        }
                    },
                    {
                        "other": {
                            "type": "ssvc",
                            "content": {
                                "timestamp": "2025-10-01T16:14:17.091633Z",
                                "id": "CVE-2025-38049",
                                "options": [
                                    {
                                        "Exploitation": "none"
                                    },
                                    {
                                        "Automatable": "no"
                                    },
                                    {
                                        "Technical Impact": "partial"
                                    }
                                ],
                                "role": "CISA Coordinator",
                                "version": "2.0.3"
                            }
                        }
                    }
                ],
                "title": "CISA ADP Vulnrichment",
                "providerMetadata": {
                    "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
                    "shortName": "CISA-ADP",
                    "dateUpdated": "2025-10-01T16:14:21.602Z"
                }
            }
        ]
    }
}