libbpf: Use OPTS_SET() macro in bpf_xdp_query()

{
  "id": "82eef3012f0d132c7c0a950036f3d70edffd5af77d1c120c5099f1b9d5efa12d",
  "url": "https://osv.dev/vulnerability/CVE-2024-27050",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "libbpf: Use OPTS_SET() macro in bpf_xdp_query()",
    "summary": "In the Linux kernel, the following vulnerability has been resolved: libbpf: Use OPTS_SET() macro in bpf_xdp_query() When the feature_flags and xdp_zc_max_segs fields were added to the libbpf bpf_xdp_query_opts, the code writing them did not use the OPTS_SET() macro. This causes libbpf to write to those fields unconditionally, which means that programs compiled against an older version of libbpf (with a smaller size of the bpf_xdp_query_opts struct) will have its stack corrupted by libbpf writing out of bounds. The patch adding the feature_flags field has an early bail out if the feature_flags field is not part of the opts struct (via the OPTS_HAS) macro, but the patch adding xdp_zc_max_segs does not. For consistency, this fix just changes the assignments to both fields to use the OPTS_SET() macro.",
    "evidence": "osv:CVE-2024-27050",
    "products": [
      {
        "name": {
          "value": "Kernel",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "6.6.23",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.7.11",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.8.2",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "high",
    "structured": {
      "id": "CVE-2024-27050",
      "aliases": [
        "CVE-2024-27050"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "type": "GIT",
              "events": [
                {
                  "introduced": "13ce2daa259a3bfbc9a5aeeee8b9a87058703731"
                },
                {
                  "fixed": "fa5bef5e80c6a3321b2b1a7070436f3bc5daf07c"
                },
                {
                  "fixed": "682ddd62abd4bdcee7584246903e7a2df005fe0d"
                },
                {
                  "fixed": "cd3be9843247edb8fc6fcd8d8237cbce2bc19f5e"
                },
                {
                  "fixed": "92a871ab9fa59a74d013bc04f321026a057618e7"
                }
              ]
            }
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2024-27050.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.6.0"
                },
                {
                  "fixed": "6.6.23"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.7.0"
                },
                {
                  "fixed": "6.7.11"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.8.0"
                },
                {
                  "fixed": "6.8.2"
                }
              ]
            }
          ],
          "package": {
            "name": "Kernel",
            "ecosystem": "Linux"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2024-27050.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:38.232658359Z",
      "provider": "osv",
      "references": [
        "https://git.kernel.org/stable/c/682ddd62abd4bdcee7584246903e7a2df005fe0d",
        "https://git.kernel.org/stable/c/92a871ab9fa59a74d013bc04f321026a057618e7",
        "https://git.kernel.org/stable/c/cd3be9843247edb8fc6fcd8d8237cbce2bc19f5e",
        "https://git.kernel.org/stable/c/fa5bef5e80c6a3321b2b1a7070436f3bc5daf07c",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/27xxx/CVE-2024-27050.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2024-27050",
        "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/2024/27xxx/CVE-2024-27050.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2024-27050",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 505486,
  "published_at": "2024-05-01T12:54:35.555+00:00"
}