libceph: replace BUG_ON with bounds check for map->max_osd

{
  "id": "646cff0715bf73d91b829690aecd33c0b59d521bbaea88c6453ca2778455469b",
  "url": "https://osv.dev/vulnerability/CVE-2025-68283",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "libceph: replace BUG_ON with bounds check for map->max_osd",
    "summary": "In the Linux kernel, the following vulnerability has been resolved: libceph: replace BUG_ON with bounds check for map->max_osd OSD indexes come from untrusted network packets. Boundary checks are added to validate these against map->max_osd. [ idryomov: drop BUG_ON in ceph_get_primary_affinity(), minor cosmetic edits ]",
    "evidence": "osv:CVE-2025-68283",
    "products": [
      {
        "name": {
          "value": "Kernel",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "6.1.159",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.6.119",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.12.61",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.17.11",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "high",
    "structured": {
      "id": "CVE-2025-68283",
      "aliases": [
        "CVE-2025-68283"
      ],
      "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": "f24e9980eb860d8600cbe5ef3d2fd9295320d229"
                },
                {
                  "fixed": "57f5fbae9f1024aba17ff75e00433324115c548a"
                },
                {
                  "fixed": "becc488a4d864db338ebd4e313aa3c77da24b604"
                },
                {
                  "fixed": "e67e3be690f5f7e3b031cf29e8d91e6d02a8e30d"
                },
                {
                  "fixed": "b4368b7f97014e1015445d61abd0b27c4c6e8424"
                },
                {
                  "fixed": "ec3797f043756a94ea2d0f106022e14ac4946c02"
                }
              ]
            }
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-68283.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "2.6.34"
                },
                {
                  "fixed": "6.1.159"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.2.0"
                },
                {
                  "fixed": "6.6.119"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.7.0"
                },
                {
                  "fixed": "6.12.61"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.13.0"
                },
                {
                  "fixed": "6.17.11"
                }
              ]
            }
          ],
          "package": {
            "name": "Kernel",
            "ecosystem": "Linux"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-68283.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:23.060547464Z",
      "provider": "osv",
      "references": [
        "https://git.kernel.org/stable/c/57f5fbae9f1024aba17ff75e00433324115c548a",
        "https://git.kernel.org/stable/c/b4368b7f97014e1015445d61abd0b27c4c6e8424",
        "https://git.kernel.org/stable/c/becc488a4d864db338ebd4e313aa3c77da24b604",
        "https://git.kernel.org/stable/c/e67e3be690f5f7e3b031cf29e8d91e6d02a8e30d",
        "https://git.kernel.org/stable/c/ec3797f043756a94ea2d0f106022e14ac4946c02",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/68xxx/CVE-2025-68283.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2025-68283",
        "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/2025/68xxx/CVE-2025-68283.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2025-68283",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 489356,
  "published_at": "2025-12-16T15:06:05.355+00:00"
}