Vulnerability-Lookup

FKIE_CVE-2023-52444

Vulnerability from fkie_nvd - Published: 2024-02-22 17:15 - Updated: 2026-08-04 10:18

Severity

7.8 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
7.8 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Summary

In the Linux kernel, the following vulnerability has been resolved: f2fs: fix to avoid dirent corruption As Al reported in link[1]: f2fs_rename() ... if (old_dir != new_dir && !whiteout) f2fs_set_link(old_inode, old_dir_entry, old_dir_page, new_dir); else f2fs_put_page(old_dir_page, 0); You want correct inumber in the ".." link. And cross-directory rename does move the source to new parent, even if you'd been asked to leave a whiteout in the old place. [1] https://lore.kernel.org/all/20231017055040.GN800259@ZenIV/ With below testcase, it may cause dirent corruption, due to it missed to call f2fs_set_link() to update ".." link to new directory. - mkdir -p dir/foo - renameat2 -w dir/foo bar [ASSERT] (__chk_dots_dentries:1421) --> Bad inode number[0x4] for '..', parent parent ino is [0x3] [FSCK] other corrupted bugs [Fail]

References

URL	Tags
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/02160112e6d45c2610b049df6eb693d7a2e57b46	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/2fb4867f4405aea8c0519d7d188207f232a57862	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/53edb549565f55ccd0bdf43be3d66ce4c2d48b28	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/5624a3c1b1ebc8991318e1cce2aa719542991024	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/6f866885e147d33efc497f1095f35b2ee5ec7310	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/d3c0b49aaa12a61d560528f5d605029ab57f0728	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/f0145860c20be6bae6785c7a2249577674702ac7	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/f100ba617d8be6c98a68f3744ef7617082975b77	Patch
af854a3a-2127-422b-91ae-364da2661108	https://git.kernel.org/stable/c/02160112e6d45c2610b049df6eb693d7a2e57b46	Patch
af854a3a-2127-422b-91ae-364da2661108	https://git.kernel.org/stable/c/2fb4867f4405aea8c0519d7d188207f232a57862	Patch
af854a3a-2127-422b-91ae-364da2661108	https://git.kernel.org/stable/c/53edb549565f55ccd0bdf43be3d66ce4c2d48b28	Patch
af854a3a-2127-422b-91ae-364da2661108	https://git.kernel.org/stable/c/5624a3c1b1ebc8991318e1cce2aa719542991024	Patch
af854a3a-2127-422b-91ae-364da2661108	https://git.kernel.org/stable/c/6f866885e147d33efc497f1095f35b2ee5ec7310	Patch
af854a3a-2127-422b-91ae-364da2661108	https://git.kernel.org/stable/c/d3c0b49aaa12a61d560528f5d605029ab57f0728	Patch
af854a3a-2127-422b-91ae-364da2661108	https://git.kernel.org/stable/c/f0145860c20be6bae6785c7a2249577674702ac7	Patch
af854a3a-2127-422b-91ae-364da2661108	https://git.kernel.org/stable/c/f100ba617d8be6c98a68f3744ef7617082975b77	Patch
af854a3a-2127-422b-91ae-364da2661108	https://lists.debian.org/debian-lts-announce/2024/06/msg00016.html
af854a3a-2127-422b-91ae-364da2661108	https://lists.debian.org/debian-lts-announce/2024/06/msg00020.html

Impacted products

Vendor	Product	Version
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	*

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "fs/f2fs/namei.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "02160112e6d45c2610b049df6eb693d7a2e57b46",
              "status": "affected",
              "version": "7e01e7ad746bc8198a8b46163ddc73a1c7d22339",
              "versionType": "git"
            },
            {
              "lessThan": "5624a3c1b1ebc8991318e1cce2aa719542991024",
              "status": "affected",
              "version": "7e01e7ad746bc8198a8b46163ddc73a1c7d22339",
              "versionType": "git"
            },
            {
              "lessThan": "6f866885e147d33efc497f1095f35b2ee5ec7310",
              "status": "affected",
              "version": "7e01e7ad746bc8198a8b46163ddc73a1c7d22339",
              "versionType": "git"
            },
            {
              "lessThan": "f100ba617d8be6c98a68f3744ef7617082975b77",
              "status": "affected",
              "version": "7e01e7ad746bc8198a8b46163ddc73a1c7d22339",
              "versionType": "git"
            },
            {
              "lessThan": "f0145860c20be6bae6785c7a2249577674702ac7",
              "status": "affected",
              "version": "7e01e7ad746bc8198a8b46163ddc73a1c7d22339",
              "versionType": "git"
            },
            {
              "lessThan": "d3c0b49aaa12a61d560528f5d605029ab57f0728",
              "status": "affected",
              "version": "7e01e7ad746bc8198a8b46163ddc73a1c7d22339",
              "versionType": "git"
            },
            {
              "lessThan": "2fb4867f4405aea8c0519d7d188207f232a57862",
              "status": "affected",
              "version": "7e01e7ad746bc8198a8b46163ddc73a1c7d22339",
              "versionType": "git"
            },
            {
              "lessThan": "53edb549565f55ccd0bdf43be3d66ce4c2d48b28",
              "status": "affected",
              "version": "7e01e7ad746bc8198a8b46163ddc73a1c7d22339",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "fs/f2fs/namei.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "4.2"
            },
            {
              "lessThan": "4.2",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "4.19.*",
              "status": "unaffected",
              "version": "4.19.306",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.4.*",
              "status": "unaffected",
              "version": "5.4.268",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.209",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.148",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.75",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.14",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.7.*",
              "status": "unaffected",
              "version": "6.7.2",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.8",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "70CC102A-02F0-48B6-BEE8-3547C9651B25",
              "versionEndExcluding": "4.19.306",
              "versionStartIncluding": "4.2.0",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "991BF737-6083-429B-ACD5-FB27D4143E2F",
              "versionEndExcluding": "5.4.268",
              "versionStartIncluding": "4.20",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "5D2E4F24-2FBB-4434-8598-2B1499E566B5",
              "versionEndExcluding": "5.10.209",
              "versionStartIncluding": "5.5.0",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "E25E1389-4B0F-407A-9C94-5908FF3EE88B",
              "versionEndExcluding": "5.15.148",
              "versionStartIncluding": "5.11.0",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "2C4951FA-80C0-4B4C-9836-6E5035DEB0F9",
              "versionEndExcluding": "6.1.75",
              "versionStartIncluding": "5.16.0",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "BDBBEB0E-D13A-4567-8984-51C5375350B9",
              "versionEndExcluding": "6.6.14",
              "versionStartIncluding": "6.2.0",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "0EA3778C-730B-464C-8023-18CA6AC0B807",
              "versionEndExcluding": "6.7.2",
              "versionStartIncluding": "6.7.0",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nf2fs: fix to avoid dirent corruption\n\nAs Al reported in link[1]:\n\nf2fs_rename()\n...\n\tif (old_dir != new_dir \u0026\u0026 !whiteout)\n\t\tf2fs_set_link(old_inode, old_dir_entry,\n\t\t\t\t\told_dir_page, new_dir);\n\telse\n\t\tf2fs_put_page(old_dir_page, 0);\n\nYou want correct inumber in the \"..\" link.  And cross-directory\nrename does move the source to new parent, even if you\u0027d been asked\nto leave a whiteout in the old place.\n\n[1] https://lore.kernel.org/all/20231017055040.GN800259@ZenIV/\n\nWith below testcase, it may cause dirent corruption, due to it missed\nto call f2fs_set_link() to update \"..\" link to new directory.\n- mkdir -p dir/foo\n- renameat2 -w dir/foo bar\n\n[ASSERT] (__chk_dots_dentries:1421)  --\u003e Bad inode number[0x4] for \u0027..\u0027, parent parent ino is [0x3]\n[FSCK] other corrupted bugs                           [Fail]"
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: f2fs: correcci\u00f3n para evitar corrupci\u00f3n directa Como inform\u00f3 Al en link[1]: f2fs_rename() ... if (old_dir != new_dir \u0026amp;\u0026amp; !whiteout) f2fs_set_link(old_inode, old_dir_entry, old_dir_page, new_dir); dem\u00e1s f2fs_put_page(old_dir_page, 0); Quiere el n\u00famero correcto en el enlace \"..\" Y el cambio de nombre entre directorios mueve la fuente al nuevo padre, incluso si le hubieran pedido que dejara un espacio en blanco en el lugar anterior. [1] https://lore.kernel.org/all/20231017055040.GN800259@ZenIV/ Con el siguiente caso de prueba, puede causar corrupci\u00f3n directa, debido a que no llam\u00f3 a f2fs_set_link() para actualizar el enlace \"..\" al nuevo directorio . - mkdir -p dir/foo - renameat2 -w dir/foo bar [ASSERT] (__chk_dots_dentries:1421) --\u0026gt; N\u00famero de inodo incorrecto [0x4] para \u0027..\u0027, el ino padre padre es [0x3] [FSCK] otro corrupto errores [falla]"
    }
  ],
  "id": "CVE-2023-52444",
  "lastModified": "2026-08-04T10:18:27.903",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 7.8,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 5.9,
        "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "type": "Secondary"
      },
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 7.8,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 5.9,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2023-52444",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2024-02-26T17:55:52.107706Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2024-02-22T17:15:08.430",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/02160112e6d45c2610b049df6eb693d7a2e57b46"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/2fb4867f4405aea8c0519d7d188207f232a57862"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/53edb549565f55ccd0bdf43be3d66ce4c2d48b28"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/5624a3c1b1ebc8991318e1cce2aa719542991024"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/6f866885e147d33efc497f1095f35b2ee5ec7310"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/d3c0b49aaa12a61d560528f5d605029ab57f0728"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/f0145860c20be6bae6785c7a2249577674702ac7"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/f100ba617d8be6c98a68f3744ef7617082975b77"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/02160112e6d45c2610b049df6eb693d7a2e57b46"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/2fb4867f4405aea8c0519d7d188207f232a57862"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/53edb549565f55ccd0bdf43be3d66ce4c2d48b28"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/5624a3c1b1ebc8991318e1cce2aa719542991024"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/6f866885e147d33efc497f1095f35b2ee5ec7310"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/d3c0b49aaa12a61d560528f5d605029ab57f0728"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/f0145860c20be6bae6785c7a2249577674702ac7"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/f100ba617d8be6c98a68f3744ef7617082975b77"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "https://lists.debian.org/debian-lts-announce/2024/06/msg00016.html"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "https://lists.debian.org/debian-lts-announce/2024/06/msg00020.html"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-119"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}

CVE-2023-52444 (GCVE-0-2023-52444)

Vulnerability from cvelistv5 – Published: 2024-02-22 16:21 – Updated: 2026-08-05 09:10

Title

f2fs: fix to avoid dirent corruption

Summary

Severity

7.8 (High)


                        
                          CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2024-02-26 17:55 UTC

Assigner

Linux mitre root

References

10 references

URL	Tags
https://git.kernel.org/stable/c/02160112e6d45c261…
https://git.kernel.org/stable/c/5624a3c1b1ebc8991…
https://git.kernel.org/stable/c/6f866885e147d33ef…
https://git.kernel.org/stable/c/f100ba617d8be6c98…
https://git.kernel.org/stable/c/f0145860c20be6bae…
https://git.kernel.org/stable/c/d3c0b49aaa12a61d5…
https://git.kernel.org/stable/c/2fb4867f4405aea8c…
https://git.kernel.org/stable/c/53edb549565f55ccd…
https://lists.debian.org/debian-lts-announce/2024…	x_transferred
https://lists.debian.org/debian-lts-announce/2024…	x_transferred

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 7e01e7ad746bc8198a8b46163ddc73a1c7d22339 , < 02160112e6d45c2610b049df6eb693d7a2e57b46 (git) Affected: 7e01e7ad746bc8198a8b46163ddc73a1c7d22339 , < 5624a3c1b1ebc8991318e1cce2aa719542991024 (git) Affected: 7e01e7ad746bc8198a8b46163ddc73a1c7d22339 , < 6f866885e147d33efc497f1095f35b2ee5ec7310 (git) Affected: 7e01e7ad746bc8198a8b46163ddc73a1c7d22339 , < f100ba617d8be6c98a68f3744ef7617082975b77 (git) Affected: 7e01e7ad746bc8198a8b46163ddc73a1c7d22339 , < f0145860c20be6bae6785c7a2249577674702ac7 (git) Affected: 7e01e7ad746bc8198a8b46163ddc73a1c7d22339 , < d3c0b49aaa12a61d560528f5d605029ab57f0728 (git) Affected: 7e01e7ad746bc8198a8b46163ddc73a1c7d22339 , < 2fb4867f4405aea8c0519d7d188207f232a57862 (git) Affected: 7e01e7ad746bc8198a8b46163ddc73a1c7d22339 , < 53edb549565f55ccd0bdf43be3d66ce4c2d48b28 (git)
Linux	Linux	Affected: 4.2 Unaffected: 0 , < 4.2 (semver) Unaffected: 4.19.306 , ≤ 4.19.* (semver) Unaffected: 5.4.268 , ≤ 5.4.* (semver) Unaffected: 5.10.209 , ≤ 5.10.* (semver) Unaffected: 5.15.148 , ≤ 5.15.* (semver) Unaffected: 6.1.75 , ≤ 6.1.* (semver) Unaffected: 6.6.14 , ≤ 6.6.* (semver) Unaffected: 6.7.2 , ≤ 6.7.* (semver) Unaffected: 6.8 , ≤ * (original_commit_for_fix)

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2023-52444",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-02-26T17:55:52.107706Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2024-07-05T17:21:03.571Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      },
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-02T22:55:41.853Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/02160112e6d45c2610b049df6eb693d7a2e57b46"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/5624a3c1b1ebc8991318e1cce2aa719542991024"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/6f866885e147d33efc497f1095f35b2ee5ec7310"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/f100ba617d8be6c98a68f3744ef7617082975b77"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/f0145860c20be6bae6785c7a2249577674702ac7"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/d3c0b49aaa12a61d560528f5d605029ab57f0728"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/2fb4867f4405aea8c0519d7d188207f232a57862"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/53edb549565f55ccd0bdf43be3d66ce4c2d48b28"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://lists.debian.org/debian-lts-announce/2024/06/msg00016.html"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://lists.debian.org/debian-lts-announce/2024/06/msg00020.html"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "fs/f2fs/namei.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "02160112e6d45c2610b049df6eb693d7a2e57b46",
              "status": "affected",
              "version": "7e01e7ad746bc8198a8b46163ddc73a1c7d22339",
              "versionType": "git"
            },
            {
              "lessThan": "5624a3c1b1ebc8991318e1cce2aa719542991024",
              "status": "affected",
              "version": "7e01e7ad746bc8198a8b46163ddc73a1c7d22339",
              "versionType": "git"
            },
            {
              "lessThan": "6f866885e147d33efc497f1095f35b2ee5ec7310",
              "status": "affected",
              "version": "7e01e7ad746bc8198a8b46163ddc73a1c7d22339",
              "versionType": "git"
            },
            {
              "lessThan": "f100ba617d8be6c98a68f3744ef7617082975b77",
              "status": "affected",
              "version": "7e01e7ad746bc8198a8b46163ddc73a1c7d22339",
              "versionType": "git"
            },
            {
              "lessThan": "f0145860c20be6bae6785c7a2249577674702ac7",
              "status": "affected",
              "version": "7e01e7ad746bc8198a8b46163ddc73a1c7d22339",
              "versionType": "git"
            },
            {
              "lessThan": "d3c0b49aaa12a61d560528f5d605029ab57f0728",
              "status": "affected",
              "version": "7e01e7ad746bc8198a8b46163ddc73a1c7d22339",
              "versionType": "git"
            },
            {
              "lessThan": "2fb4867f4405aea8c0519d7d188207f232a57862",
              "status": "affected",
              "version": "7e01e7ad746bc8198a8b46163ddc73a1c7d22339",
              "versionType": "git"
            },
            {
              "lessThan": "53edb549565f55ccd0bdf43be3d66ce4c2d48b28",
              "status": "affected",
              "version": "7e01e7ad746bc8198a8b46163ddc73a1c7d22339",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "fs/f2fs/namei.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "4.2"
            },
            {
              "lessThan": "4.2",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "4.19.*",
              "status": "unaffected",
              "version": "4.19.306",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.4.*",
              "status": "unaffected",
              "version": "5.4.268",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.209",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.148",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.75",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.14",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.7.*",
              "status": "unaffected",
              "version": "6.7.2",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.8",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "4.19.306",
                  "versionStartIncluding": "4.2",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.4.268",
                  "versionStartIncluding": "4.2",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.10.209",
                  "versionStartIncluding": "4.2",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.15.148",
                  "versionStartIncluding": "4.2",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.1.75",
                  "versionStartIncluding": "4.2",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.6.14",
                  "versionStartIncluding": "4.2",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.7.2",
                  "versionStartIncluding": "4.2",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.8",
                  "versionStartIncluding": "4.2",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nf2fs: fix to avoid dirent corruption\n\nAs Al reported in link[1]:\n\nf2fs_rename()\n...\n\tif (old_dir != new_dir \u0026\u0026 !whiteout)\n\t\tf2fs_set_link(old_inode, old_dir_entry,\n\t\t\t\t\told_dir_page, new_dir);\n\telse\n\t\tf2fs_put_page(old_dir_page, 0);\n\nYou want correct inumber in the \"..\" link.  And cross-directory\nrename does move the source to new parent, even if you\u0027d been asked\nto leave a whiteout in the old place.\n\n[1] https://lore.kernel.org/all/20231017055040.GN800259@ZenIV/\n\nWith below testcase, it may cause dirent corruption, due to it missed\nto call f2fs_set_link() to update \"..\" link to new directory.\n- mkdir -p dir/foo\n- renameat2 -w dir/foo bar\n\n[ASSERT] (__chk_dots_dentries:1421)  --\u003e Bad inode number[0x4] for \u0027..\u0027, parent parent ino is [0x3]\n[FSCK] other corrupted bugs                           [Fail]"
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "baseScore": 7.8,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "scenarios": [
            {
              "lang": "en",
              "value": "AV:L - The defect is in f2fs_rename(), reached only via local rename/renameat2 (or overlayfs upper-layer RENAME_WHITEOUT on an f2fs upper) through vfs_rename(); it is not reachable from network packet processing.\nAC:L - The attacker deterministically triggers the bug with mkdir and renameat2(RENAME_WHITEOUT) across directories (or by driving overlay whiteout renames); no race or attacker-uncontrollable condition is required.\nPR:L - Only ordinary DAC write/rename permission on directories of an already-mounted f2fs volume is required; RENAME_WHITEOUT has no capability gate and is usable by unprivileged users (including via overlay in user namespaces).\nUI:N - On the highest-severity realistic deployment (Android/embedded f2fs userdata, or f2fs used as overlay upper) the filesystem is already mounted; the attacker triggers the rename path entirely with their own syscalls.\nS:U - Impact is confined to on-disk f2fs directory metadata and same-host exportfs/NFS parent resolution within one OS security authority; there is no VM, IOMMU, or sandbox boundary escape.\nC:H - Stale or dangling \"..\" is what f2fs_get_parent reads for exportfs/NFS LOOKUPP; after the under-counted old parent is removed, that inumber can be reused so get_parent resolves an unrelated directory, disclosing unintended directory contents (and enabling NFS subtree escape when f2fs is exported).\nI:H - Cross-directory whiteout rename leaves a durable wrong \"..\" dirent while still adjusting parent nlink, creating inconsistent directory metadata that fails fsck and can dangling-reference a removed parent\u2014high-impact on-disk integrity loss analogous to other dirent/\"..\" corruption CVEs.\nA:H - The resulting filesystem corruption fails fsck.f2fs and can break exportfs reconnect / yield -EFSCORRUPTED on bad parent iget; on Android/embedded userdata this is durable volume availability loss requiring repair or wipe."
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-05T09:10:00.972Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/02160112e6d45c2610b049df6eb693d7a2e57b46"
        },
        {
          "url": "https://git.kernel.org/stable/c/5624a3c1b1ebc8991318e1cce2aa719542991024"
        },
        {
          "url": "https://git.kernel.org/stable/c/6f866885e147d33efc497f1095f35b2ee5ec7310"
        },
        {
          "url": "https://git.kernel.org/stable/c/f100ba617d8be6c98a68f3744ef7617082975b77"
        },
        {
          "url": "https://git.kernel.org/stable/c/f0145860c20be6bae6785c7a2249577674702ac7"
        },
        {
          "url": "https://git.kernel.org/stable/c/d3c0b49aaa12a61d560528f5d605029ab57f0728"
        },
        {
          "url": "https://git.kernel.org/stable/c/2fb4867f4405aea8c0519d7d188207f232a57862"
        },
        {
          "url": "https://git.kernel.org/stable/c/53edb549565f55ccd0bdf43be3d66ce4c2d48b28"
        }
      ],
      "title": "f2fs: fix to avoid dirent corruption",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2023-52444",
    "datePublished": "2024-02-22T16:21:37.043Z",
    "dateReserved": "2024-02-20T12:30:33.291Z",
    "dateUpdated": "2026-08-05T09:10:00.972Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

Action not permitted

FKIE_CVE-2023-52444

CVE-2023-52444 (GCVE-0-2023-52444)

Tags

Sightings

Nomenclature

Related by attack behaviour