{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "e2f34481b24db2fd634b5edb0a5bd0e4d38cc6e9"
            },
            {
              "fixed": "ab0230257ebdf48b07eaa679a8c92bc842fe3498"
            },
            {
              "fixed": "370b0ec8822b69c9073265e16b7daaa8201c9a4f"
            },
            {
              "fixed": "5c833074b549e5db125436a6f681af682261f785"
            },
            {
              "fixed": "243f1614ef2aca2d62a744575f1c24b07cd42757"
            },
            {
              "fixed": "18705cace0619fd2123737dcd028147774f38181"
            },
            {
              "fixed": "0ff12308c8a6c16ab68f0a487ffa93d69001dc18"
            },
            {
              "fixed": "c74801ee524f477c174a1899782b6c3b6918d407"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "5.15.0"
            },
            {
              "fixed": "5.15.217"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "5.16.0"
            },
            {
              "fixed": "6.1.183"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.2.0"
            },
            {
              "fixed": "6.6.148"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.7.0"
            },
            {
              "fixed": "6.12.101"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.13.0"
            },
            {
              "fixed": "6.18.42"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.19.0"
            },
            {
              "fixed": "7.1.6"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/68xxx/CVE-2026-68130.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nksmbd: defer destroy_previous_session() until after NTLM authentication\n\nIn ntlm_authenticate(), destroy_previous_session() is called using a\nuser pointer resolved from the client-supplied NTLM blob username field\nbefore the NTLMv2 response is validated. An authenticated attacker can\nset the NTLM blob username to match a victim account and set\nPreviousSessionId to the victim's session ID; destroy_previous_session()\ndestroys the victim's session while ksmbd_decode_ntlmssp_auth_blob()\nsubsequently rejects the request with -EPERM.\n\nMove destroy_previous_session() and the prev_id assignment to after\nksmbd_decode_ntlmssp_auth_blob() returns success and use sess-\u003euser\nrather than the pre-authentication lookup result. This matches the\nordering already used by krb5_authenticate(), where\ndestroy_previous_session() is called only after\nksmbd_krb5_authenticate() returns success.",
  "id": "CVE-2026-68130",
  "modified": "2026-08-25T03:51:43.268502987Z",
  "published": "2026-08-10T11:58:52.653Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/0ff12308c8a6c16ab68f0a487ffa93d69001dc18"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/18705cace0619fd2123737dcd028147774f38181"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/243f1614ef2aca2d62a744575f1c24b07cd42757"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/370b0ec8822b69c9073265e16b7daaa8201c9a4f"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/5c833074b549e5db125436a6f681af682261f785"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/ab0230257ebdf48b07eaa679a8c92bc842fe3498"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/c74801ee524f477c174a1899782b6c3b6918d407"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/68xxx/CVE-2026-68130.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-68130"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.9.0",
  "summary": "ksmbd: defer destroy_previous_session() until after NTLM authentication"
}