accel/amdxdna: reject command submission on devices without a submit op

{
  "id": "2b8bf27f980c34b64704c174fca293f41a942350c22d09d4a3c271dec6cc9ef1",
  "url": "https://osv.dev/vulnerability/CVE-2026-72092",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "accel/amdxdna: reject command submission on devices without a submit op",
    "summary": "In the Linux kernel, the following vulnerability has been resolved: accel/amdxdna: reject command submission on devices without a submit op amdxdna_cmd_submit() calls xdna->dev_info->ops->cmd_submit() unconditionally, but only aie2_dev_ops defines that callback. aie4_vf_ops (the AIE4 SR-IOV virtual function) does not, so a user AMDXDNA_EXEC_CMD ioctl on an AIE4 device reaches a NULL function-pointer call and oopses the kernel. AIE4 submits work through a mapped user queue and doorbell, not this ioctl path. Reject the submission early with -EOPNOTSUPP when the device provides no cmd_submit op, so the shared EXEC ioctl is a clean no-op on such devices. Found by 0sec automated security-research tooling (https://0sec.ai).",
    "evidence": "osv:CVE-2026-72092",
    "products": [
      {
        "name": {
          "value": "Kernel",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "6.18.42",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "7.1.5",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "unknown",
    "structured": {
      "id": "CVE-2026-72092",
      "aliases": [
        "CVE-2026-72092"
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "type": "GIT",
              "events": [
                {
                  "introduced": "aac243092b707bb3018e951d470cc1a9bcbaba6c"
                },
                {
                  "fixed": "af7a4c2caa7a191d6e7ed33903b69f9901874cd0"
                },
                {
                  "fixed": "f7d08603c87bae19ca3e424da5ab6d0aee81886e"
                },
                {
                  "fixed": "38953513d7313992676d4136cd425cdb70c6278e"
                }
              ]
            }
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-72092.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.14.0"
                },
                {
                  "fixed": "6.18.42"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.19.0"
                },
                {
                  "fixed": "7.1.5"
                }
              ]
            }
          ],
          "package": {
            "name": "Kernel",
            "ecosystem": "Linux"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-72092.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:37.898271812Z",
      "provider": "osv",
      "references": [
        "https://git.kernel.org/stable/c/38953513d7313992676d4136cd425cdb70c6278e",
        "https://git.kernel.org/stable/c/af7a4c2caa7a191d6e7ed33903b69f9901874cd0",
        "https://git.kernel.org/stable/c/f7d08603c87bae19ca3e424da5ab6d0aee81886e",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/72xxx/CVE-2026-72092.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-72092",
        "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
      ],
      "provider_metadata": {
        "cna_assigner": "Linux",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/72xxx/CVE-2026-72092.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-72092",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": null
  },
  "source_id": "core-osv",
  "document_id": 505393,
  "published_at": "2026-08-15T05:52:39.12+00:00"
}