net/dibs: Correct freeing of dmb_clientid_arr

{
  "id": "cf0ec12dcd77b318ef97e2287a12d94be32d7d183a4aa8fc4ebd625ee4594f45",
  "url": "https://osv.dev/vulnerability/CVE-2026-74629",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "net/dibs: Correct freeing of dmb_clientid_arr",
    "summary": "In the Linux kernel, the following vulnerability has been resolved: net/dibs: Correct freeing of dmb_clientid_arr A dibs device interrupt handler can be active after dibs_dev_del() and may still access dmb_clientid_arr. (UAF) In case of a failure in dibs_dev_add() being called by dibs_lo_dev_probe() dmb_clientid_arr is freed twice (double free). Free dmb_clientid_arr in dibs_dev_release() after last reference is gone. Note that allocating in dibs_dev_add() instead of dibs_dev_alloc() is ok for now, because no dmbs can be registered before dibs_dev_add().",
    "evidence": "osv:CVE-2026-74629",
    "products": [
      {
        "name": {
          "value": "Kernel",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "6.18.45",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "7.1.9",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "high",
    "structured": {
      "id": "CVE-2026-74629",
      "aliases": [
        "CVE-2026-74629"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "type": "GIT",
              "events": [
                {
                  "introduced": "cc21191b584c6f7836b0f10774f8278b7cbfba10"
                },
                {
                  "fixed": "ece6426b61241e9bfb41aa131f235168f55229b1"
                },
                {
                  "fixed": "7a1df20a8d2cc89e3a442b6e0b43b1cacde8d403"
                },
                {
                  "fixed": "9e6869be49064915edb6c8776b27c376cfdb0df5"
                }
              ]
            }
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-74629.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.18.0"
                },
                {
                  "fixed": "6.18.45"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.19.0"
                },
                {
                  "fixed": "7.1.9"
                }
              ]
            }
          ],
          "package": {
            "name": "Kernel",
            "ecosystem": "Linux"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-74629.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:25.864367202Z",
      "provider": "osv",
      "references": [
        "https://git.kernel.org/stable/c/7a1df20a8d2cc89e3a442b6e0b43b1cacde8d403",
        "https://git.kernel.org/stable/c/9e6869be49064915edb6c8776b27c376cfdb0df5",
        "https://git.kernel.org/stable/c/ece6426b61241e9bfb41aa131f235168f55229b1",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/74xxx/CVE-2026-74629.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-74629",
        "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/2026/74xxx/CVE-2026-74629.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-74629",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 492561,
  "published_at": "2026-08-22T15:32:10.861+00:00"
}