uacce: fix isolate sysfs check condition

{
  "id": "2173ff5263381aad4ff01f3e7ff48fae40eb3bed6c9bffde54f11f4039b6452a",
  "url": "https://osv.dev/vulnerability/CVE-2026-23094",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "uacce: fix isolate sysfs check condition",
    "summary": "In the Linux kernel, the following vulnerability has been resolved: uacce: fix isolate sysfs check condition uacce supports the device isolation feature. If the driver implements the isolate_err_threshold_read and isolate_err_threshold_write callback functions, uacce will create sysfs files now. Users can read and configure the isolation policy through sysfs. Currently, sysfs files are created as long as either isolate_err_threshold_read or isolate_err_threshold_write callback functions are present. However, accessing a non-existent callback function may cause the system to crash. Therefore, intercept the creation of sysfs if neither read nor write exists; create sysfs if either is supported, but intercept unsupported operations at the call site.",
    "evidence": "osv:CVE-2026-23094",
    "products": [
      {
        "name": {
          "value": "Kernel",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "6.6.122",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.12.68",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.18.8",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "unknown",
    "structured": {
      "id": "CVE-2026-23094",
      "aliases": [
        "CVE-2026-23094"
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "type": "GIT",
              "events": [
                {
                  "introduced": "e3e289fbc0b520cf469469e8cdba84a50424eb65"
                },
                {
                  "fixed": "9ab05cdcac354b1b1139918f49c6418b9005d042"
                },
                {
                  "fixed": "fdbbb47d15ae17bf39fafec7e2028c1f8efba15e"
                },
                {
                  "fixed": "82821a681d5dcce31475a65190fc39ea8f372cc0"
                },
                {
                  "fixed": "98eec349259b1fd876f350b1c600403bcef8f85d"
                }
              ]
            }
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-23094.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.3.0"
                },
                {
                  "fixed": "6.6.122"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.7.0"
                },
                {
                  "fixed": "6.12.68"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.13.0"
                },
                {
                  "fixed": "6.18.8"
                }
              ]
            }
          ],
          "package": {
            "name": "Kernel",
            "ecosystem": "Linux"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-23094.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:39.637428824Z",
      "provider": "osv",
      "references": [
        "https://git.kernel.org/stable/c/82821a681d5dcce31475a65190fc39ea8f372cc0",
        "https://git.kernel.org/stable/c/98eec349259b1fd876f350b1c600403bcef8f85d",
        "https://git.kernel.org/stable/c/9ab05cdcac354b1b1139918f49c6418b9005d042",
        "https://git.kernel.org/stable/c/fdbbb47d15ae17bf39fafec7e2028c1f8efba15e",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/23xxx/CVE-2026-23094.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-23094",
        "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/2026/23xxx/CVE-2026-23094.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-23094",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": null
  },
  "source_id": "core-osv",
  "document_id": 506934,
  "published_at": "2026-02-04T16:08:17.061+00:00"
}