drm/nouveau: fix u32 overflow in pushbuf reloc bounds check_CVE-2026-46006

{
    "lastseen": "",
    "description": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/nouveau: fix u32 overflow in pushbuf reloc bounds check\n\nnouveau_gem_pushbuf_reloc_apply() validates each relocation with\n\n    if (r->reloc_bo_offset + 4 > nvbo->bo.base.size)\n\nbut reloc_bo_offset is __u32 (uapi/drm/nouveau_drm.h) and the integer\nliteral 4 promotes to unsigned int, so the addition is performed in 32\nbits and wraps before the comparison against the size_t bo size.\n\nCast to u64 so the addition happens in 64-bit arithmetic.\n\n[ Add Fixes: tag. - Danilo ]",
    "published": "2026-05-27T12:56:05.273Z",
    "modified": "2026-05-30T10:46:33.777Z",
    "type": "cve",
    "title": "drm/nouveau: fix u32 overflow in pushbuf reloc bounds check",
    "source": "Linux",
    "references": "https://git.kernel.org/stable/c/fa297e919d1680c38ab268ff952b1698dac987f6\nhttps://git.kernel.org/stable/c/d749a9a0ee4014681487e7ae549901aa8c176637\nhttps://git.kernel.org/stable/c/332884f5eb79dd60a7162b079d09d39208567a31\nhttps://git.kernel.org/stable/c/e441d5c23ec644c8d27593db3b8928e8933512a9\nhttps://git.kernel.org/stable/c/2fc87d37be1b730a149b035f9375fdb8cc5333a5",
    "id": "CVE-2026-46006",
    "bulletinFamily": "",
    "cwe": null,
    "cvelist": null,
    "sourceData": "Linux Linux a1606a9596e54da90ad6209071b357a4c1b0fa82\nLinux Linux a1606a9596e54da90ad6209071b357a4c1b0fa82\nLinux Linux a1606a9596e54da90ad6209071b357a4c1b0fa82\nLinux Linux a1606a9596e54da90ad6209071b357a4c1b0fa82\nLinux Linux a1606a9596e54da90ad6209071b357a4c1b0fa82\nLinux Linux 2.6.34",
    "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": [],
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        "baseScore": 0,
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        "cvssV3": {
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    },
    "href": "",
    "category_name": "CVE",
    "post_link": "",
    "product": "Linux",
    "version": "a1606a9596e54da90ad6209071b357a4c1b0fa82",
    "vendor": "Linux",
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    "ai_score": 0
}