{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-43079",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2026-05-01T14:12:55.983Z",
        "datePublished": "2026-05-06T07:40:15.767Z",
        "dateUpdated": "2026-06-01T16:14:21.072Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-06-01T16:14:21.072Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nperf/x86/intel/uncore: Skip discovery table for offline dies\n\nThis warning can be triggered if NUMA is disabled and the system\nboots with fewer CPUs than the number of CPUs in die 0.\n\nWARNING: CPU: 9 PID: 7257 at uncore.c:1157 uncore_pci_pmu_register+0x136/0x160 [intel_uncore]\n\nCurrently, the discovery table continues to be parsed even if all CPUs\nin the associated die are offline.  This can lead to an array overflow\nat \"pmu->boxes[die] = box\" in uncore_pci_pmu_register(), which may\ntrigger the warning above or cause other issues."
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "arch/x86/events/intel/uncore_discovery.c"
                    ],
                    "versions": [
                        {
                            "version": "edae1f06c2cda41edffc93de6aedc8ba8dc883c3",
                            "lessThan": "d18da11a5e21eac7651c8897e5e0908f6c2bc9de",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "edae1f06c2cda41edffc93de6aedc8ba8dc883c3",
                            "lessThan": "dfcba8c8674cead6c88a2f269b71aa4efd3d384a",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "edae1f06c2cda41edffc93de6aedc8ba8dc883c3",
                            "lessThan": "cfab2c817d2e7e0bee98d66850246ce842ed5f18",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "edae1f06c2cda41edffc93de6aedc8ba8dc883c3",
                            "lessThan": "6cfc187d85f18f976d0fe527d4c6f6171542cc19",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "edae1f06c2cda41edffc93de6aedc8ba8dc883c3",
                            "lessThan": "f34feda8e0c9535fee3f8870ce8bab53c2798f71",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "edae1f06c2cda41edffc93de6aedc8ba8dc883c3",
                            "lessThan": "7a2cb02437d92ed14fe494d8994056d5bd2c72b4",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "edae1f06c2cda41edffc93de6aedc8ba8dc883c3",
                            "lessThan": "7b568e9eba2fad89a696f22f0413d44cf4a1f892",
                            "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/events/intel/uncore_discovery.c"
                    ],
                    "versions": [
                        {
                            "version": "5.13",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "5.13",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.15.209",
                            "lessThanOrEqual": "5.15.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.1.175",
                            "lessThanOrEqual": "6.1.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.6.136",
                            "lessThanOrEqual": "6.6.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.12.83",
                            "lessThanOrEqual": "6.12.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.18.24",
                            "lessThanOrEqual": "6.18.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.19.14",
                            "lessThanOrEqual": "6.19.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.0",
                            "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": "5.13",
                                    "versionEndExcluding": "5.15.209"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.13",
                                    "versionEndExcluding": "6.1.175"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.13",
                                    "versionEndExcluding": "6.6.136"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.13",
                                    "versionEndExcluding": "6.12.83"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.13",
                                    "versionEndExcluding": "6.18.24"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.13",
                                    "versionEndExcluding": "6.19.14"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.13",
                                    "versionEndExcluding": "7.0"
                                }
                            ]
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                    ]
                }
            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/d18da11a5e21eac7651c8897e5e0908f6c2bc9de"
                },
                {
                    "url": "https://git.kernel.org/stable/c/dfcba8c8674cead6c88a2f269b71aa4efd3d384a"
                },
                {
                    "url": "https://git.kernel.org/stable/c/cfab2c817d2e7e0bee98d66850246ce842ed5f18"
                },
                {
                    "url": "https://git.kernel.org/stable/c/6cfc187d85f18f976d0fe527d4c6f6171542cc19"
                },
                {
                    "url": "https://git.kernel.org/stable/c/f34feda8e0c9535fee3f8870ce8bab53c2798f71"
                },
                {
                    "url": "https://git.kernel.org/stable/c/7a2cb02437d92ed14fe494d8994056d5bd2c72b4"
                },
                {
                    "url": "https://git.kernel.org/stable/c/7b568e9eba2fad89a696f22f0413d44cf4a1f892"
                }
            ],
            "title": "perf/x86/intel/uncore: Skip discovery table for offline dies",
            "x_generator": {
                "engine": "bippy-1.2.0"
            }
        }
    }
}