drm/amdkfd: Fix out-of-bounds write in kfd_event_page_set()_CVE-2026-43206

{
    "lastseen": "",
    "description": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amdkfd: Fix out-of-bounds write in kfd_event_page_set()\n\nThe kfd_event_page_set() function writes KFD_SIGNAL_EVENT_LIMIT * 8\nbytes via memset without checking the buffer size parameter. This allows\nunprivileged userspace to trigger an out-of bounds kernel memory write\nby passing a small buffer, leading to  potential privilege\nescalation.",
    "published": "2026-05-06T11:28:10.937Z",
    "modified": "2026-05-08T12:41:14.026Z",
    "type": "cve",
    "title": "drm/amdkfd: Fix out-of-bounds write in kfd_event_page_set()",
    "source": "Linux",
    "references": "https://git.kernel.org/stable/c/3e04bc310d80b46eaf481f1fefcbcb37a187412d\nhttps://git.kernel.org/stable/c/de8d7a25cd2eb5875b1d8d4fbc7fe4b4138b781f\nhttps://git.kernel.org/stable/c/b4034442cb090e4a980bdcc1540948606cbc951b\nhttps://git.kernel.org/stable/c/4857c37c7ba9aa38b9a4c694e8bd8d0091c87940\nhttps://git.kernel.org/stable/c/75fb57efdd7863fffbc39db23e9cad7aafda26ed\nhttps://git.kernel.org/stable/c/bfcd6b53e1f4feb182952f4ff9a137c36ceaf20b\nhttps://git.kernel.org/stable/c/4e72f419e4ed44cb3b60506752d8688c20a60a9b\nhttps://git.kernel.org/stable/c/8a70a26c9f34baea6c3199a9862ddaff4554a96d",
    "id": "CVE-2026-43206",
    "bulletinFamily": "",
    "cwe": null,
    "cvelist": null,
    "sourceData": "Linux Linux 0fc8011f89feb8b2c3008583b777d097e1974660\nLinux Linux 0fc8011f89feb8b2c3008583b777d097e1974660\nLinux Linux 0fc8011f89feb8b2c3008583b777d097e1974660\nLinux Linux 0fc8011f89feb8b2c3008583b777d097e1974660\nLinux Linux 0fc8011f89feb8b2c3008583b777d097e1974660\nLinux Linux 0fc8011f89feb8b2c3008583b777d097e1974660\nLinux Linux 0fc8011f89feb8b2c3008583b777d097e1974660\nLinux Linux 0fc8011f89feb8b2c3008583b777d097e1974660\nLinux Linux 4.17",
    "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": "",
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            "privilegesRequired": "",
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            "confidentialityImpact": "",
            "integrityImpact": "",
            "availabilityImpact": ""
        }
    },
    "href": "",
    "category_name": "CVE",
    "post_link": "",
    "product": "Linux",
    "version": "0fc8011f89feb8b2c3008583b777d097e1974660",
    "vendor": "Linux",
    "ai_description": "",
    "ai_severity": "",
    "ai_vendor": "",
    "ai_product": "",
    "ai_version": "",
    "ai_score": 0
}