{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "5fb2f7fc21a3668e5794cc0d153641b9719713e1"
            },
            {
              "fixed": "336a9186f3a4b65bbd865d93936605ac8a1a3991"
            },
            {
              "fixed": "6da7b1242da4455b11c24ce667d1cab1a348c8ea"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "6.16.0"
            },
            {
              "fixed": "7.0.9"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/46xxx/CVE-2026-46311.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amdgpu/userq: fix access to stale wptr mapping\n\nUse drm_exec to take both locks i.e vm root bo and\nwptr_obj bo to access the mapping data properly.\n\nThis fixes the security issue of unmap the wptr_obj while\na queue creation is in progress and passing other\nbo at same address.\n\n(cherry picked from commit 1fc6c8ab45dbee096469c08c13f6099d57a52d6c)",
  "id": "CVE-2026-46311",
  "modified": "2026-07-10T03:54:45.410084388Z",
  "published": "2026-06-08T15:50:41.866Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/336a9186f3a4b65bbd865d93936605ac8a1a3991"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/6da7b1242da4455b11c24ce667d1cab1a348c8ea"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/46xxx/CVE-2026-46311.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-46311"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.7.5",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "drm/amdgpu/userq: fix access to stale wptr mapping"
}