{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "f7a22071dbf316c982fb44308874bd7ad9ac2091"
            },
            {
              "fixed": "ee188a6b264b71315a67f1b9470faad308b730d2"
            },
            {
              "fixed": "b2f426a9a22886071966432ede8fceafffe12b8c"
            },
            {
              "fixed": "94fe0ab01b480b52bd8f977edbd845ef375d69fd"
            },
            {
              "fixed": "78237e3c0720fcc6eb9b87e90fd70f63eeca886f"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "6.10.0"
            },
            {
              "fixed": "6.12.97"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.13.0"
            },
            {
              "fixed": "6.18.40"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.19.0"
            },
            {
              "fixed": "7.1.5"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/72xxx/CVE-2026-72018.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\ndibs: loopback: validate offset and size in move_data()\n\nThe loopback move_data() performs a memcpy into the registered DMB\nwithout checking whether offset + size exceeds the DMB length.  Unlike\nreal ISM hardware, which enforces memory region bounds natively, the\nsoftware loopback has no such protection.\n\nA peer-supplied out-of-bounds offset or oversized write would result in\nan OOB write past the allocated kernel buffer.  Add an explicit bounds\ncheck before the memcpy to reject such requests with -EINVAL.",
  "id": "CVE-2026-72018",
  "modified": "2026-08-18T03:30:57.761824257Z",
  "published": "2026-08-15T05:51:45.360Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/78237e3c0720fcc6eb9b87e90fd70f63eeca886f"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/94fe0ab01b480b52bd8f977edbd845ef375d69fd"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/b2f426a9a22886071966432ede8fceafffe12b8c"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/ee188a6b264b71315a67f1b9470faad308b730d2"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/72xxx/CVE-2026-72018.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-72018"
    },
    {
      "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:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "dibs: loopback: validate offset and size in move_data()"
}