{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-89502",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2026-09-11T19:38:34.715Z",
        "datePublished": "2026-09-11T19:43:50.700Z",
        "dateUpdated": "2026-10-19T08:47:53.802Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-10-19T08:47:53.802Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nring-buffer: Free cpu_buffer::free_page with subbuf_order\n\nWhen sub-buffers use an order greater than 0, cpu_buffer->free_page is\nallocated with subbuf_order. Use the correct order for\ncpu_buffer->free_page."
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "kernel/trace/ring_buffer.c"
                    ],
                    "versions": [
                        {
                            "version": "f9b94daa542a8d2532f0930f01cd9aec2d19621b",
                            "lessThan": "77275ccea06eaf297e8e6ac3fc830cb72086379a",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "f9b94daa542a8d2532f0930f01cd9aec2d19621b",
                            "lessThan": "8c1ecdcdea738efe0494af908f12c0ae3a97fffa",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "f9b94daa542a8d2532f0930f01cd9aec2d19621b",
                            "lessThan": "81063bbb16c4fcf0136c9117d5e49d3621dd6a1e",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "f9b94daa542a8d2532f0930f01cd9aec2d19621b",
                            "lessThan": "234b1a72e9706fe20c08c96f4374ec8e83b934cb",
                            "status": "affected",
                            "versionType": "git"
                        }
                    ]
                },
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "affected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "kernel/trace/ring_buffer.c"
                    ],
                    "versions": [
                        {
                            "version": "6.8",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "6.8",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.12.109",
                            "lessThanOrEqual": "6.12.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.18.50",
                            "lessThanOrEqual": "6.18.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.2.4",
                            "lessThanOrEqual": "7.2.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.3",
                            "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": "6.8",
                                    "versionEndExcluding": "6.12.109"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.8",
                                    "versionEndExcluding": "6.18.50"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.8",
                                    "versionEndExcluding": "7.2.4"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.8",
                                    "versionEndExcluding": "7.3"
                                }
                            ]
                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/77275ccea06eaf297e8e6ac3fc830cb72086379a"
                },
                {
                    "url": "https://git.kernel.org/stable/c/8c1ecdcdea738efe0494af908f12c0ae3a97fffa"
                },
                {
                    "url": "https://git.kernel.org/stable/c/81063bbb16c4fcf0136c9117d5e49d3621dd6a1e"
                },
                {
                    "url": "https://git.kernel.org/stable/c/234b1a72e9706fe20c08c96f4374ec8e83b934cb"
                }
            ],
            "title": "ring-buffer: Free cpu_buffer::free_page with subbuf_order",
            "x_generator": {
                "engine": "bippy-1.2.0"
            }
        }
    }
}