{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-100082",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2026-09-25T10:25:14.456Z",
        "datePublished": "2026-11-06T18:23:02.627Z",
        "dateUpdated": "2026-11-06T19:08:45.432Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-11-06T18:23:02.627Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nxen-blkback: Avoid UAF when reading I/O statistics\n\nReading I/O statistics via sysfs concurrently with tearing down a\nfrontend device might result in UAF or a NULL dereference, as the\nreading of the statistics data is not synchronized with freeing the\ndata.\n\nUse a rwlock for synchronizing.\n\nThis is XSA-528 / CVE-2026-100082"
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "drivers/block/xen-blkback/common.h",
                        "drivers/block/xen-blkback/xenbus.c"
                    ],
                    "versions": [
                        {
                            "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
                            "lessThan": "253cff0526781e28b1b0f9fdacd74ecdc23d3ab7",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
                            "lessThan": "2c9ccbe0ffcff3615c7ad917c49b67571a41f21c",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
                            "lessThan": "58ba056991dbcec8a75e6861cb4479ac947b69e6",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
                            "lessThan": "fe9ead8c5bdb752e329cecfecbdb5dfca5e9996b",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
                            "lessThan": "b764e17313534794aeb99c901869f213e36a16ef",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
                            "lessThan": "c49934da934cf495faf782aa5d84f413221c9be6",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
                            "lessThan": "b0378161c28e77e4d0e2eda3c9433ab4394d2a2f",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "0",
                            "lessThan": "5.10.274",
                            "status": "affected",
                            "versionType": "semver"
                        },
                        {
                            "version": "0",
                            "lessThan": "5.15.225",
                            "status": "affected",
                            "versionType": "semver"
                        },
                        {
                            "version": "0",
                            "lessThan": "6.1.192",
                            "status": "affected",
                            "versionType": "semver"
                        },
                        {
                            "version": "0",
                            "lessThan": "6.6.162",
                            "status": "affected",
                            "versionType": "semver"
                        },
                        {
                            "version": "0",
                            "lessThan": "6.12.116",
                            "status": "affected",
                            "versionType": "semver"
                        },
                        {
                            "version": "0",
                            "lessThan": "6.18.62",
                            "status": "affected",
                            "versionType": "semver"
                        },
                        {
                            "version": "0",
                            "lessThan": "7.3.3",
                            "status": "affected",
                            "versionType": "semver"
                        }
                    ]
                },
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "affected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "drivers/block/xen-blkback/common.h",
                        "drivers/block/xen-blkback/xenbus.c"
                    ],
                    "versions": [
                        {
                            "version": "5.10.274",
                            "lessThanOrEqual": "5.10.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.15.225",
                            "lessThanOrEqual": "5.15.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.1.192",
                            "lessThanOrEqual": "6.1.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.6.162",
                            "lessThanOrEqual": "6.6.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.12.116",
                            "lessThanOrEqual": "6.12.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.18.62",
                            "lessThanOrEqual": "6.18.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.3.3",
                            "lessThanOrEqual": "7.3.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        }
                    ]
                }
            ],
            "cpeApplicability": [
                {
                    "nodes": [
                        {
                            "operator": "OR",
                            "negate": false,
                            "cpeMatch": [
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionEndExcluding": "5.10.274"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionEndExcluding": "5.15.225"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionEndExcluding": "6.1.192"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionEndExcluding": "6.6.162"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionEndExcluding": "6.12.116"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionEndExcluding": "6.18.62"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionEndExcluding": "7.3.3"
                                }
                            ]
                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/253cff0526781e28b1b0f9fdacd74ecdc23d3ab7"
                },
                {
                    "url": "https://git.kernel.org/stable/c/2c9ccbe0ffcff3615c7ad917c49b67571a41f21c"
                },
                {
                    "url": "https://git.kernel.org/stable/c/58ba056991dbcec8a75e6861cb4479ac947b69e6"
                },
                {
                    "url": "https://git.kernel.org/stable/c/fe9ead8c5bdb752e329cecfecbdb5dfca5e9996b"
                },
                {
                    "url": "https://git.kernel.org/stable/c/b764e17313534794aeb99c901869f213e36a16ef"
                },
                {
                    "url": "https://git.kernel.org/stable/c/c49934da934cf495faf782aa5d84f413221c9be6"
                },
                {
                    "url": "https://git.kernel.org/stable/c/b0378161c28e77e4d0e2eda3c9433ab4394d2a2f"
                }
            ],
            "title": "xen-blkback: Avoid UAF when reading I/O statistics",
            "x_generator": {
                "engine": "bippy-1.2.0"
            }
        },
        "adp": [
            {
                "title": "CVE Program Container",
                "references": [
                    {
                        "url": "http://www.openwall.com/lists/oss-security/2026/11/06/11"
                    },
                    {
                        "url": "http://xenbits.xen.org/xsa/advisory-528.html"
                    }
                ],
                "providerMetadata": {
                    "orgId": "af854a3a-2127-422b-91ae-364da2661108",
                    "shortName": "CVE",
                    "dateUpdated": "2026-11-06T19:08:45.432Z"
                }
            }
        ]
    }
}