ovl: Use "buf" flexible array for memcpy() destination

{
  "id": "b5ddead6f5102b3bdffde1cde6493e65a420695c05f2efca8167c59b6e890199",
  "url": "https://osv.dev/vulnerability/CVE-2022-49743",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "ovl: Use \"buf\" flexible array for memcpy() destination",
    "summary": "In the Linux kernel, the following vulnerability has been resolved: ovl: Use \"buf\" flexible array for memcpy() destination The \"buf\" flexible array needs to be the memcpy() destination to avoid false positive run-time warning from the recent FORTIFY_SOURCE hardening: memcpy: detected field-spanning write (size 93) of single field \"&fh->fb\" at fs/overlayfs/export.c:799 (size 21)",
    "evidence": "osv:CVE-2022-49743",
    "products": [
      {
        "name": {
          "value": "Kernel",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "5.10.248",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "5.15.93",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.1.11",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "high",
    "structured": {
      "id": "CVE-2022-49743",
      "aliases": [
        "CVE-2022-49743"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "type": "GIT",
              "events": [
                {
                  "introduced": "cbe7fba8edfc8cb8e621599e376f8ac5c224fa72"
                },
                {
                  "fixed": "012cdef22000f3104e4fa8224ad29fde509b8caf"
                },
                {
                  "fixed": "a77141a06367825d639ac51b04703d551163e36c"
                },
                {
                  "fixed": "07a96977b2f462337a9121302de64277b8747ab1"
                },
                {
                  "fixed": "cf8aa9bf97cadf85745506c6a3e244b22c268d63"
                }
              ]
            }
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2022-49743.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "5.5.0"
                },
                {
                  "fixed": "5.10.248"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "5.11.0"
                },
                {
                  "fixed": "5.15.93"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "5.16.0"
                },
                {
                  "fixed": "6.1.11"
                }
              ]
            }
          ],
          "package": {
            "name": "Kernel",
            "ecosystem": "Linux"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2022-49743.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:22.021659070Z",
      "provider": "osv",
      "references": [
        "https://git.kernel.org/stable/c/012cdef22000f3104e4fa8224ad29fde509b8caf",
        "https://git.kernel.org/stable/c/07a96977b2f462337a9121302de64277b8747ab1",
        "https://git.kernel.org/stable/c/a77141a06367825d639ac51b04703d551163e36c",
        "https://git.kernel.org/stable/c/cf8aa9bf97cadf85745506c6a3e244b22c268d63",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/49xxx/CVE-2022-49743.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2022-49743",
        "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
      ],
      "provider_metadata": {
        "cna_assigner": "Linux",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/49xxx/CVE-2022-49743.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2022-49743",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 487967,
  "published_at": "2025-03-27T16:42:54.289+00:00"
}