{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "bdabad3e363d825ddf9679dd431cca0b2c30f881"
            },
            {
              "fixed": "7814f6a3415cad38aa8d6dfc573df778260d66aa"
            },
            {
              "fixed": "2d22b94a154ccb9755dddfff802fe3e2b1adbab5"
            },
            {
              "fixed": "8d351fe0654a20c9f95a61b05d24ebe6d4be3fbb"
            },
            {
              "fixed": "4b95e1f0d6e6342c427cb341ee18a894b146b789"
            },
            {
              "fixed": "f488116df769bdaf89c93371350e49e12133e70f"
            },
            {
              "fixed": "8150c48fb978e01689f94ed80148f8a7499ae571"
            },
            {
              "fixed": "659b9b4f194bb56b9903cc95e786ef1d438baa7d"
            },
            {
              "fixed": "3b536db8fb32da9e9c62f2bb45e2e319331f0426"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "4.7.0"
            },
            {
              "fixed": "5.10.265"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "5.11.0"
            },
            {
              "fixed": "5.15.216"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "5.16.0"
            },
            {
              "fixed": "6.1.183"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.2.0"
            },
            {
              "fixed": "6.6.148"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.7.0"
            },
            {
              "fixed": "6.12.101"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.13.0"
            },
            {
              "fixed": "6.18.42"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.19.0"
            },
            {
              "fixed": "7.1.6"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/68xxx/CVE-2026-68294.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: qrtr: restrict socket creation to the initial network namespace\n\nQRTR keeps its entire port and node state in module-global variables\nthat are not partitioned per network namespace: qrtr_local_nid is a\nsingle global node id (always 1) and qrtr_ports is a single global\nxarray. qrtr_port_lookup() and qrtr_local_enqueue() operate on that\nglobal state with no network-namespace check, and qrtr_create() places\nno restriction on the namespace a socket is created in.\n\nAs a result an unprivileged process that creates an AF_QIPCRTR socket\nin a separate network namespace, e.g. via\nunshare(CLONE_NEWUSER | CLONE_NEWNET), can send QRTR datagrams -\nincluding control-plane messages such as QRTR_TYPE_NEW_SERVER - to QRTR\nsockets owned by another namespace, and vice versa. The receiving\nsocket sees such a message as coming from node id 1, indistinguishable\nfrom a legitimate local client, breaking the isolation that network\nnamespaces are expected to provide.\n\nQRTR is a transport to global hardware endpoints (the modem and other\nremote processors) and has no per-namespace semantics; its in-kernel\nname service already creates its socket in init_net only. Confine the\nsocket family to the initial network namespace, as other\nnon-namespace-aware socket families do (see llc_ui_create() and the\nieee802154 socket code).",
  "id": "CVE-2026-68294",
  "modified": "2026-08-21T03:30:30.992903974Z",
  "published": "2026-08-10T12:02:27.423Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/2d22b94a154ccb9755dddfff802fe3e2b1adbab5"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/3b536db8fb32da9e9c62f2bb45e2e319331f0426"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/4b95e1f0d6e6342c427cb341ee18a894b146b789"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/659b9b4f194bb56b9903cc95e786ef1d438baa7d"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/7814f6a3415cad38aa8d6dfc573df778260d66aa"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/8150c48fb978e01689f94ed80148f8a7499ae571"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/8d351fe0654a20c9f95a61b05d24ebe6d4be3fbb"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/f488116df769bdaf89c93371350e49e12133e70f"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/68xxx/CVE-2026-68294.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-68294"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.9.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "net: qrtr: restrict socket creation to the initial network namespace"
}