x86/CPU/AMD: Terminate the erratum_1386_microcode array

{
  "id": "afa62ba1a0a8b278cc2111eb6eba555d64732299197251f04f900345f3b82556",
  "url": "https://osv.dev/vulnerability/CVE-2024-56721",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "x86/CPU/AMD: Terminate the erratum_1386_microcode array",
    "summary": "In the Linux kernel, the following vulnerability has been resolved: x86/CPU/AMD: Terminate the erratum_1386_microcode array The erratum_1386_microcode array requires an empty entry at the end. Otherwise x86_match_cpu_with_stepping() will continue iterate the array after it ended. Add an empty entry to erratum_1386_microcode to its end.",
    "evidence": "osv:CVE-2024-56721",
    "products": [
      {
        "name": {
          "value": "Kernel",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "6.11.11",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.12.2",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "high",
    "structured": {
      "id": "CVE-2024-56721",
      "aliases": [
        "CVE-2024-56721"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "type": "GIT",
              "events": [
                {
                  "introduced": "29ba89f1895285f06c333546882e0c5ae9a6df23"
                },
                {
                  "fixed": "82d6b82cf89d950982ac240ba068c3a7e1f23b0a"
                },
                {
                  "fixed": "ccfee14f08b8699132b87bc6d78e0fa75bf094dd"
                },
                {
                  "fixed": "ff6cdc407f4179748f4673c39b0921503199a0ad"
                }
              ]
            }
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2024-56721.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.10.0"
                },
                {
                  "fixed": "6.11.11"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.12.0"
                },
                {
                  "fixed": "6.12.2"
                }
              ]
            }
          ],
          "package": {
            "name": "Kernel",
            "ecosystem": "Linux"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2024-56721.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:22.853092421Z",
      "provider": "osv",
      "references": [
        "https://git.kernel.org/stable/c/82d6b82cf89d950982ac240ba068c3a7e1f23b0a",
        "https://git.kernel.org/stable/c/ccfee14f08b8699132b87bc6d78e0fa75bf094dd",
        "https://git.kernel.org/stable/c/ff6cdc407f4179748f4673c39b0921503199a0ad",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/56xxx/CVE-2024-56721.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2024-56721",
        "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/2024/56xxx/CVE-2024-56721.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2024-56721",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 488928,
  "published_at": "2024-12-29T11:29:59.164+00:00"
}