{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "893ae97214c385be02f8ec097298cc48c7f0d905"
            },
            {
              "fixed": "e9c5b03208507dd6d58b0c23a2c60b5c2f4c1b11"
            },
            {
              "fixed": "54535692bec9ef464adc714108eb19e49e38b5a2"
            },
            {
              "fixed": "c73b8795b45f4ad5a95120d2e9b435ea4616e08e"
            },
            {
              "fixed": "59da37fee81a8d76079313348ca13c5bc90dd6ae"
            },
            {
              "fixed": "8cdcf3d2caacdee7ddd363705fb4d93b0c1a0915"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "5.14.0"
            },
            {
              "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": "7.1.5"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/72xxx/CVE-2026-72045.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nocteontx2-af: cn10k: restrict VF LMTLINE sharing to its own PF\n\nrvu_mbox_handler_lmtst_tbl_setup() uses req-\u003ebase_pcifunc as a direct\nindex into the LMT map table to read another function's LMTLINE\nphysical base address and copy it into the caller's own LMT map table\nentry. The mailbox dispatcher authenticates req-\u003ehdr.pcifunc from the\nIRQ source, but req-\u003ebase_pcifunc is a separate payload field and is\nnot sanitized.\n\nReject the request with -EPERM when a VF caller's base_pcifunc is not a\nvalid function under its own PF. is_pf_func_valid() bounds the FUNC field\nto the PF's configured VF count, keeping the computed index inside the\ncaller's own slot block.",
  "id": "CVE-2026-72045",
  "modified": "2026-08-18T03:30:58.133855171Z",
  "published": "2026-08-15T05:52:04.038Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/54535692bec9ef464adc714108eb19e49e38b5a2"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/59da37fee81a8d76079313348ca13c5bc90dd6ae"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/8cdcf3d2caacdee7ddd363705fb4d93b0c1a0915"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/c73b8795b45f4ad5a95120d2e9b435ea4616e08e"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/e9c5b03208507dd6d58b0c23a2c60b5c2f4c1b11"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/72xxx/CVE-2026-72045.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-72045"
    },
    {
      "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": "octeontx2-af: cn10k: restrict VF LMTLINE sharing to its own PF"
}