drm/xe/dma-buf: fix UAF with retry loop_CVE-2026-52950

{
    "lastseen": "",
    "description": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/xe/dma-buf: fix UAF with retry loop\n\nRetry doesn't work here, since bo will be freed on error, leading to\nUAF. However, now that we do the alloc & init before the attach, we can\nnow combine this as one unit and have the init do the alloc for us. This\nshould make the retry safe.\n\nReported by Sashiko.\n\nv2: Fix up the error unwind (CI)\n\n(cherry picked from commit 479669418253e0f27f8cf5db01a731352ea592e7)",
    "published": "2026-06-24T16:28:33.469Z",
    "modified": "2026-06-28T06:37:06.988Z",
    "type": "cve",
    "title": "drm/xe/dma-buf: fix UAF with retry loop",
    "source": "Linux",
    "references": "https://git.kernel.org/stable/c/39fdac6be02eb7c3460518c1c4085f75f935c4ce\nhttps://git.kernel.org/stable/c/827062952ed9bdf4220466c1f05ce452d04bdedf\nhttps://git.kernel.org/stable/c/155a372a1cc50fa93387c5d3cdfd614a61e1afd1",
    "id": "CVE-2026-52950",
    "bulletinFamily": "",
    "cwe": null,
    "cvelist": null,
    "sourceData": "Linux Linux eb289a5f6cc668853f9b2ea6aca04afe58ed11c7\nLinux Linux eb289a5f6cc668853f9b2ea6aca04afe58ed11c7\nLinux Linux eb289a5f6cc668853f9b2ea6aca04afe58ed11c7\nLinux Linux 6.18",
    "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": "eb289a5f6cc668853f9b2ea6aca04afe58ed11c7",
    "vendor": "Linux",
    "ai_description": "",
    "ai_severity": "",
    "ai_vendor": "",
    "ai_product": "",
    "ai_version": "",
    "ai_score": 0
}