{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "b46acd6a6a627d876898e1c84d3f84902264b445"
            },
            {
              "fixed": "ab8761676d638c5be170aaf91b7ffdd451236616"
            },
            {
              "fixed": "53c12f178f584dc5f836ffe2782138a6e9348ed9"
            },
            {
              "fixed": "546518468e6c9ea469669eef78f8cc380ad6e2ca"
            },
            {
              "fixed": "97758fd9756b5f09e9ddc6a5f6a569041acc8421"
            },
            {
              "fixed": "50b5e83384e7fed3d11d18b79ff350e9d6d89861"
            },
            {
              "fixed": "a89c66674283a0293c0f266dc57087a6114371a3"
            },
            {
              "fixed": "d1570c48f49a693974d000251030370ee2e83539"
            }
          ],
          "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": "5.15.212"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "5.16.0"
            },
            {
              "fixed": "6.1.178"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.2.0"
            },
            {
              "fixed": "6.6.145"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.7.0"
            },
            {
              "fixed": "6.12.97"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.13.0"
            },
            {
              "fixed": "6.18.40"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.19.0"
            },
            {
              "fixed": "7.1.5"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/72xxx/CVE-2026-72195.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nfs/ntfs3: bound attr_off in UpdateResidentValue against data_off\n\nIn do_action()'s UpdateResidentValue case (fslog.c:3307),\nlrh-\u003eattr_off and lrh-\u003eredo_len come from the on-disk LRH.\nWhen they satisfy aoff + dlen \u003c attr-\u003eres.data_off, the\nassignment\n\n\tattr-\u003eres.data_size = cpu_to_le32(aoff + dlen - data_off);\n\nunderflows to ~4 GiB (e.g. 0xFFFFFFF9 when aoff=0x10, dlen=1,\ndata_off=0x18).  Subsequent code that reads attr-\u003eres.data_size\nto walk the resident attribute payload would then read up to\n4 GiB past the 1024-byte MFT record allocation.\n\nThe existing mi_enum_attr() defense in fs/ntfs3/record.c:287\ncatches the corrupted data_size on the next attribute walk\nand fails the mount, but only on the path that walks all\nattributes.  A read site that picks an attribute by name and\nreads its data_size without re-validating is not covered.\nValidate aoff against data_off and asize at the source.\n\nReproduced under UML+KASAN on mainline 8d90b09e6741 via\npr_warn-only probe: with aoff=0x10 and data_off=0x18, the\npost-assignment data_size is 0xfffffff9 (mount then fails\nat -22 from mi_enum_attr).\n\n[almaz.alexandrovich@paragon-software.com: clang-formatted the changes]",
  "id": "CVE-2026-72195",
  "modified": "2026-08-18T03:31:20.758601356Z",
  "published": "2026-08-15T05:53:54.869Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/50b5e83384e7fed3d11d18b79ff350e9d6d89861"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/53c12f178f584dc5f836ffe2782138a6e9348ed9"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/546518468e6c9ea469669eef78f8cc380ad6e2ca"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/97758fd9756b5f09e9ddc6a5f6a569041acc8421"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/a89c66674283a0293c0f266dc57087a6114371a3"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/ab8761676d638c5be170aaf91b7ffdd451236616"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/d1570c48f49a693974d000251030370ee2e83539"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/72xxx/CVE-2026-72195.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-72195"
    },
    {
      "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": "fs/ntfs3: bound attr_off in UpdateResidentValue against data_off"
}