{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "ca9c54d2d6a5ab2430c4eda364c77125d62e5e0f"
            },
            {
              "fixed": "5ddc715324badd7f2641bc177db1d027b402adae"
            },
            {
              "fixed": "ff1d5af207bcea857d45fe81505f1bc4b29eaef0"
            },
            {
              "fixed": "01f7f893d5e1baae995beeb86cd0f3e6bb2a3b01"
            },
            {
              "fixed": "763a372d344fb12fae566d36ddb46e92454ad58c"
            },
            {
              "fixed": "fa627a5eaa83fc0261f44ef3769693b886ca6e27"
            },
            {
              "fixed": "355e9f2b2a7887ca38100127989af3e422ba71d0"
            },
            {
              "fixed": "b809d0409991b75a6cff846a5ac27c3062953f84"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "5.13.0"
            },
            {
              "fixed": "5.15.209"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "5.16.0"
            },
            {
              "fixed": "6.1.175"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.2.0"
            },
            {
              "fixed": "6.6.142"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.7.0"
            },
            {
              "fixed": "6.12.92"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.13.0"
            },
            {
              "fixed": "6.18.34"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.19.0"
            },
            {
              "fixed": "7.0.11"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/64xxx/CVE-2026-64018.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: mana: validate rx_req_idx to prevent out-of-bounds array access\n\nIn mana_hwc_rx_event_handler(), rx_req_idx is derived from\nsge-\u003eaddress in DMA-coherent memory. In Confidential VMs\n(SEV-SNP/TDX), this memory is shared unencrypted and HW can modify\nWQE contents at any time. No bounds check exists on rx_req_idx,\nwhich can lead to an out-of-bounds access into reqs[].\n\nAdd bounds check on rx_req_idx in mana_hwc_rx_event_handler() before\nusing it to index the reqs[] array.",
  "id": "CVE-2026-64018",
  "modified": "2026-08-12T03:51:27.465306093Z",
  "published": "2026-07-19T15:39:12.704Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/01f7f893d5e1baae995beeb86cd0f3e6bb2a3b01"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/355e9f2b2a7887ca38100127989af3e422ba71d0"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/5ddc715324badd7f2641bc177db1d027b402adae"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/763a372d344fb12fae566d36ddb46e92454ad58c"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/b809d0409991b75a6cff846a5ac27c3062953f84"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/fa627a5eaa83fc0261f44ef3769693b886ca6e27"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/ff1d5af207bcea857d45fe81505f1bc4b29eaef0"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/64xxx/CVE-2026-64018.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-64018"
    },
    {
      "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:N/UI:N/S:C/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "net: mana: validate rx_req_idx to prevent out-of-bounds array access"
}