perf/x86: Fix potential bad container_of in intel_pmu_hw_config_CVE-2026-31782

{
    "lastseen": "",
    "description": "In the Linux kernel, the following vulnerability has been resolved:\n\nperf/x86: Fix potential bad container_of in intel_pmu_hw_config\n\nAuto counter reload may have a group of events with software events\npresent within it. The software event PMU isn't the x86_hybrid_pmu and\na container_of operation in intel_pmu_set_acr_caused_constr (via the\nhybrid helper) could cause out of bound memory reads. Avoid this by\nguarding the call to intel_pmu_set_acr_caused_constr with an\nis_x86_event check.",
    "published": "2026-05-01T14:15:08.586Z",
    "modified": "2026-05-03T05:45:58.620Z",
    "type": "cve",
    "title": "perf/x86: Fix potential bad container_of in intel_pmu_hw_config",
    "source": "Linux",
    "references": "https://git.kernel.org/stable/c/e435a30ca6fe14c9611b1fc731c98a6d28410247\nhttps://git.kernel.org/stable/c/bfee04838f636d064bc92075c65c95f739003804\nhttps://git.kernel.org/stable/c/dbde07f06226438cd2cf1179745fa1bec5d8914a",
    "id": "CVE-2026-31782",
    "bulletinFamily": "",
    "cwe": null,
    "cvelist": null,
    "sourceData": "Linux Linux ec980e4facef8110f6fce27e5b6344660117f01f\nLinux Linux ec980e4facef8110f6fce27e5b6344660117f01f\nLinux Linux ec980e4facef8110f6fce27e5b6344660117f01f\nLinux Linux 6.16",
    "sourceHref": "",
    "cvss": {
        "score": 7.8,
        "severity": "HIGH",
        "vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
        "version": "3.1"
    },
    "cvss2": [],
    "cvss3": {
        "version": "",
        "vectorString": "",
        "baseScore": 0,
        "baseSeverity": "",
        "attackVector": "",
        "attackComplexity": "",
        "privilegesRequired": "",
        "userInteraction": "",
        "scope": "",
        "confidentialityImpact": "",
        "integrityImpact": "",
        "availabilityImpact": "",
        "cvssV3": {
            "version": "",
            "vectorString": "",
            "baseScore": 0,
            "baseSeverity": "",
            "attackVector": "",
            "attackComplexity": "",
            "privilegesRequired": "",
            "userInteraction": "",
            "scope": "",
            "confidentialityImpact": "",
            "integrityImpact": "",
            "availabilityImpact": ""
        }
    },
    "href": "",
    "category_name": "CVE",
    "post_link": "",
    "product": "Linux",
    "version": "ec980e4facef8110f6fce27e5b6344660117f01f",
    "vendor": "Linux",
    "ai_description": "",
    "ai_severity": "",
    "ai_vendor": "",
    "ai_product": "",
    "ai_version": "",
    "ai_score": 0
}