{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2"
            },
            {
              "fixed": "33cda0036bc683fc888c20b04a5fc030e3e8413b"
            },
            {
              "fixed": "b9729c51a8b67f8b20b8a8cf395da4be63a0c15b"
            },
            {
              "fixed": "af48abc1b00d865c3f4c4d76b901c44115cb7162"
            },
            {
              "fixed": "e20f3b749ad241df77ec1c3e13a9c22209aa1eb3"
            },
            {
              "fixed": "7898beee166c1145c0bca364d687b8437435bf1a"
            },
            {
              "fixed": "e31985c67ba00a59d9b1340af473c1dbe6c87856"
            },
            {
              "fixed": "473ea7aa35615829f0de7a71e8691d69dc24e328"
            },
            {
              "fixed": "e2ea5cac61acfc11dad22f1d2d4bc71d56c52a20"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "2.6.12"
            },
            {
              "fixed": "5.10.270"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "5.11.0"
            },
            {
              "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": "6.12.110"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.13.0"
            },
            {
              "fixed": "6.18.52"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.19.0"
            },
            {
              "fixed": "7.2.6"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/93xxx/CVE-2026-93095.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nhfsplus: validate thread record before delete key rebuild\n\nhfsplus_delete_cat() is called with str == NULL when the last open\nreference to an unlinked HFS+ hardlink backing inode is closed. In that\ncase, the function finds the catalog thread by CNID and rebuilds the\ncatalog key from thread.nodeName.\n\nThat reconstruction path reads thread.nodeName.length directly from the\ncatalog B-tree into fd.search_key and then copies length * 2 bytes into\nfd.search_key-\u003ecat.name.unicode. It does not first check that the found\nrecord is a thread record or that its size matches the thread name.\n\nA corrupted image can therefore provide an oversized thread name length\nand make hfs_bnode_read() write past the catalog search-key allocation.\n\nRead the CNID record through hfsplus_brec_read_cat(), which bounds the\nrecord read to sizeof(hfsplus_cat_entry) and verifies that a thread\nrecord's size exactly matches nodeName.length. Together, these checks\nensure an accepted thread name fits HFSPLUS_MAX_STRLEN. Reject non-thread\nrecords before building the delete key from the validated thread name.\n\nShare the thread-record-type helper between hfsplus_find_cat() and\nhfsplus_delete_cat().",
  "id": "CVE-2026-93095",
  "modified": "2026-09-20T11:30:55.641779445Z",
  "published": "2026-09-17T16:11:09.694Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/33cda0036bc683fc888c20b04a5fc030e3e8413b"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/473ea7aa35615829f0de7a71e8691d69dc24e328"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/7898beee166c1145c0bca364d687b8437435bf1a"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/af48abc1b00d865c3f4c4d76b901c44115cb7162"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/b9729c51a8b67f8b20b8a8cf395da4be63a0c15b"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/e20f3b749ad241df77ec1c3e13a9c22209aa1eb3"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/e2ea5cac61acfc11dad22f1d2d4bc71d56c52a20"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/e31985c67ba00a59d9b1340af473c1dbe6c87856"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/93xxx/CVE-2026-93095.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-93095"
    },
    {
      "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:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "hfsplus: validate thread record before delete key rebuild"
}