HID: hyperv: avoid struct memcpy overrun warning

{
  "id": "a341ade494c8d0a9b05a0d70f0bb1879431460feb5e78d7f81ffda501d3372a2",
  "url": "https://osv.dev/vulnerability/CVE-2023-53553",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "HID: hyperv: avoid struct memcpy overrun warning",
    "summary": "In the Linux kernel, the following vulnerability has been resolved: HID: hyperv: avoid struct memcpy overrun warning A previous patch addressed the fortified memcpy warning for most builds, but I still see this one with gcc-9: In file included from include/linux/string.h:254, from drivers/hid/hid-hyperv.c:8: In function 'fortify_memcpy_chk', inlined from 'mousevsc_on_receive' at drivers/hid/hid-hyperv.c:272:3: include/linux/fortify-string.h:583:4: error: call to '__write_overflow_field' declared with attribute warning: detected write beyond size of field (1st parameter); maybe use struct_group()? [-Werror=attribute-warning] 583 | __write_overflow_field(p_size_field, size); | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ My guess is that the WARN_ON() itself is what confuses gcc, so it no longer sees that there is a correct range check. Rework the code in a way that helps readability and avoids the warning.",
    "evidence": "osv:CVE-2023-53553",
    "products": [
      {
        "name": {
          "value": "Kernel",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "6.4.5",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "unknown",
    "structured": {
      "id": "CVE-2023-53553",
      "aliases": [
        "CVE-2023-53553"
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "type": "GIT",
              "events": [
                {
                  "introduced": "542f25a94471570e2594be5b422b9ca572cf88a1"
                },
                {
                  "fixed": "a7902cc5f5b9c95997017c8e309da760fb1deb6e"
                },
                {
                  "fixed": "5f151364b1da6bd217632fd4ee8cc24eaf66a497"
                }
              ]
            }
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-53553.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.2.0"
                },
                {
                  "fixed": "6.4.5"
                }
              ]
            }
          ],
          "package": {
            "name": "Kernel",
            "ecosystem": "Linux"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-53553.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:23.068414827Z",
      "provider": "osv",
      "references": [
        "https://git.kernel.org/stable/c/5f151364b1da6bd217632fd4ee8cc24eaf66a497",
        "https://git.kernel.org/stable/c/a7902cc5f5b9c95997017c8e309da760fb1deb6e",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/53xxx/CVE-2023-53553.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2023-53553",
        "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/2023/53xxx/CVE-2023-53553.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2023-53553",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": null
  },
  "source_id": "core-osv",
  "document_id": 489416,
  "published_at": "2025-10-04T15:16:59.091+00:00"
}