{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "c84760659dcf237902d4cc997cd5f55cb3b2807f"
            },
            {
              "fixed": "0f82586741e39926542f621bafa424e237a04fa4"
            },
            {
              "fixed": "134d82a2b5e3eba3ebf58753a1387b22f26ca1de"
            },
            {
              "fixed": "03a12253dd2a036545bdb0110a4e0b8dc70f8e7c"
            },
            {
              "fixed": "e99120b5944a16d0bc27e52b33de78bcdaaabf5c"
            },
            {
              "fixed": "98a42bb9d60d42898c3494de351a1bf508348cde"
            },
            {
              "fixed": "184c1a80421a5b5ddcd262e47980ce2e67fee211"
            },
            {
              "fixed": "9f92e749fc08b7ff3d9da190c4d1b2273745b282"
            },
            {
              "fixed": "c35da2bac6f7cb9a9be73f188b4fcc324615c327"
            },
            {
              "fixed": "b7eea80be25f3334f131d52982b3131aba77b97d"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "5.5.0"
            },
            {
              "fixed": "5.10.267"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "5.11.0"
            },
            {
              "fixed": "5.15.218"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "5.16.0"
            },
            {
              "fixed": "6.1.185"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.2.0"
            },
            {
              "fixed": "6.6.154"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.7.0"
            },
            {
              "fixed": "6.12.106"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.13.0"
            },
            {
              "fixed": "6.18.47"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.19.0"
            },
            {
              "fixed": "7.1.11"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "7.2.0"
            },
            {
              "fixed": "7.2.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/80xxx/CVE-2026-80805.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nxfs: validate attr entry pointer before field access\n\nxfs_attr3_leaf_verify_entry() accesses lentry/rentry fields (namelen,\nvaluelen) before checking if the entry pointer itself is within bounds.\nIf nameidx is crafted to point near the end of the buffer, these field\naccesses can read out-of-bounds before the bounds check at\nname_end \u003e buf_end is performed.\n\nAdd explicit bounds checks for entry pointers before accessing their\nfields. Use offsetof() to check that the start of the flexible array\nmember (nameval/name) is within bounds, which ensures all preceding\nfields are safe to access.",
  "id": "CVE-2026-80805",
  "modified": "2026-09-06T03:30:55.445662517Z",
  "published": "2026-09-04T15:13:19.239Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/03a12253dd2a036545bdb0110a4e0b8dc70f8e7c"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/0f82586741e39926542f621bafa424e237a04fa4"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/134d82a2b5e3eba3ebf58753a1387b22f26ca1de"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/184c1a80421a5b5ddcd262e47980ce2e67fee211"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/98a42bb9d60d42898c3494de351a1bf508348cde"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/9f92e749fc08b7ff3d9da190c4d1b2273745b282"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/b7eea80be25f3334f131d52982b3131aba77b97d"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/c35da2bac6f7cb9a9be73f188b4fcc324615c327"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/e99120b5944a16d0bc27e52b33de78bcdaaabf5c"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/80xxx/CVE-2026-80805.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-80805"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.9.0",
  "summary": "xfs: validate attr entry pointer before field access"
}