{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "b46acd6a6a627d876898e1c84d3f84902264b445"
            },
            {
              "fixed": "31fdd11f75da9823500168cecb07aa45130915a3"
            },
            {
              "fixed": "bb742d1030864c0fe140666f639428ba4e90b2ca"
            },
            {
              "fixed": "61ca8cbbf68f77f25b699ed4358bd232f94ed43b"
            },
            {
              "fixed": "f4c1bc6d7331f344ffcea93c2a37badcbe15baa6"
            },
            {
              "fixed": "7ccb94901f38a062034b56b43c774050b113758f"
            },
            {
              "fixed": "1135ebc225996b3ac1a295652b19a0a706737a6c"
            },
            {
              "fixed": "6f7b9dbdc1b7520206abce0049bdd143eb536e75"
            }
          ],
          "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": "5.15.221"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "5.16.0"
            },
            {
              "fixed": "6.1.188"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.2.0"
            },
            {
              "fixed": "6.6.157"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.7.0"
            },
            {
              "fixed": "6.12.109"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.13.0"
            },
            {
              "fixed": "6.18.50"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.19.0"
            },
            {
              "fixed": "7.2.4"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/89xxx/CVE-2026-89615.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nfs/ntfs3: bound page_lcns[] index by the log record\n\nThe copy_lcns loop and the redo shorten loop index page_lcns[] at j + i,\nwhere i runs up to the log record's lcns_follow. That count is checked only\nagainst the record's own length, not the target entry, so check_dp_table()\n(which validates the entry's lcns_follow) does not cover it: the copy_lcns\nentry may even be freshly allocated after that check, and find_dp() bounds j\nbut not i. A crafted record thus overflows page_lcns[] of an otherwise valid\nentry.\n\nAdd dp_range_ok() and reject, before each loop, any record whose run does\nnot fit the entry. These are the only two page_lcns[] accesses indexed by\nthe record rather than the entry, so together with the entry validation\nevery access is now bounded.\n\n[almaz.alexandrovich@paragon-software.com: original patch contained changes to the problem already handled, applied partly]",
  "id": "CVE-2026-89615",
  "modified": "2026-09-16T03:30:30.116068827Z",
  "published": "2026-09-11T19:45:15.397Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/1135ebc225996b3ac1a295652b19a0a706737a6c"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/31fdd11f75da9823500168cecb07aa45130915a3"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/61ca8cbbf68f77f25b699ed4358bd232f94ed43b"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/6f7b9dbdc1b7520206abce0049bdd143eb536e75"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/7ccb94901f38a062034b56b43c774050b113758f"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/bb742d1030864c0fe140666f639428ba4e90b2ca"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/f4c1bc6d7331f344ffcea93c2a37badcbe15baa6"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/89xxx/CVE-2026-89615.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-89615"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.9.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "fs/ntfs3: bound page_lcns[] index by the log record"
}