{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-53278",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2026-06-09T07:44:35.395Z",
        "datePublished": "2026-06-26T19:40:40.694Z",
        "dateUpdated": "2026-06-26T19:40:40.694Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-06-26T19:40:40.694Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\narm_mpam: Check whether the config array is allocated before destroying it\n\n__destroy_component_cfg() is called to free the configuration array.\nIt uses the embedded 'garbage' structure, which means the array has\nto be allocated.\n\nIf __destroy_component_cfg() is called from mpam_disable() before the\nconfiguration was ever allocated, then a NULL pointer is dereferenced.\n\nCheck for this case and return early if the configuration is not\nallocated.\n\n__destroy_component_cfg() also frees the mbwu_state as this is allocated\nby __allocate_component_cfg(). As the mbwu_state is allocated after\ncomp->cfg is set, and is also under mpam_list_lock, only the first\npointer needs checking."
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "drivers/resctrl/mpam_devices.c"
                    ],
                    "versions": [
                        {
                            "version": "3bd04fe7d807bbdcfe75b29ca82fae4e2d7dc524",
                            "lessThan": "8eb6dc76eeae5302c0d885906a0e469ef9630a59",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "3bd04fe7d807bbdcfe75b29ca82fae4e2d7dc524",
                            "lessThan": "6ccbb613b42a1f1ba7bfd547a148f644a902a25c",
                            "status": "affected",
                            "versionType": "git"
                        }
                    ]
                },
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "affected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "drivers/resctrl/mpam_devices.c"
                    ],
                    "versions": [
                        {
                            "version": "6.19",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "6.19",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.0.10",
                            "lessThanOrEqual": "7.0.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.1",
                            "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": "6.19",
                                    "versionEndExcluding": "7.0.10"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.19",
                                    "versionEndExcluding": "7.1"
                                }
                            ]
                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/8eb6dc76eeae5302c0d885906a0e469ef9630a59"
                },
                {
                    "url": "https://git.kernel.org/stable/c/6ccbb613b42a1f1ba7bfd547a148f644a902a25c"
                }
            ],
            "title": "arm_mpam: Check whether the config array is allocated before destroying it",
            "x_generator": {
                "engine": "bippy-1.2.0"
            }
        }
    }
}