{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "64e8ee814819f21beeeda00d4119221443d77992"
            },
            {
              "fixed": "cec97102d4147e18568c93946014c4c8ebf86fcf"
            },
            {
              "fixed": "28d5f20ed022ade0fb0bfbf50b78fec782083175"
            },
            {
              "fixed": "373a1e9366e711b89bc5e45bd6edf33ef62402cd"
            },
            {
              "fixed": "f08619f060468076e4acbdc10e0713af20d60e65"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "6.11.0"
            },
            {
              "fixed": "6.12.110"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.13.0"
            },
            {
              "fixed": "6.18.52"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.19.0"
            },
            {
              "fixed": "7.2.6"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/92xxx/CVE-2026-92515.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nbpf: Preserve unique-field state across nested structs\n\nbtf_find_struct_field() initializes a fresh seen mask for every recursive\ndescent. Unique special fields in different levels of the same aggregate\ntherefore do not see one another. The duplicate fields can reach\nbtf_parse_fields(), where they trigger an invariant WARN_ON_ONCE(). A\ncrafted user BTF can consequently trigger the warning before map creation\nchecks capabilities.\n\nInitialize the seen mask once in btf_find_field() and pass the same pointer\nthrough struct, datasec, and nested-struct walks. This gives the entire field\ntraversal one shared uniqueness state.",
  "id": "CVE-2026-92515",
  "modified": "2026-09-19T03:30:13.668249218Z",
  "published": "2026-09-17T16:10:24.159Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/28d5f20ed022ade0fb0bfbf50b78fec782083175"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/373a1e9366e711b89bc5e45bd6edf33ef62402cd"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/cec97102d4147e18568c93946014c4c8ebf86fcf"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/f08619f060468076e4acbdc10e0713af20d60e65"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/92xxx/CVE-2026-92515.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-92515"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.9.0",
  "summary": "bpf: Preserve unique-field state across nested structs"
}