fkie_nvd - fkie_cve-2023-53473

FKIE_CVE-2023-53473

Vulnerability from fkie_nvd - Published: 2025-10-01 12:15 - Updated: 2025-10-02 19:12

Severity ?

Summary

In the Linux kernel, the following vulnerability has been resolved: ext4: improve error handling from ext4_dirhash() The ext4_dirhash() will *almost* never fail, especially when the hash tree feature was first introduced. However, with the addition of support of encrypted, casefolded file names, that function can most certainly fail today. So make sure the callers of ext4_dirhash() properly check for failures, and reflect the errors back up to their callers.

References

	URL	Tags
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/4b3cb1d108bfc2aebb0d7c8a52261a53cf7f5786
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/70d579aefa652a06af97e013e3fbbabbe5a43553
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/b2531936118deb3f479c4fa1bcd787b74b8faa6a
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/c1fae027da61fe8e7eb99f7244297e81bc0f1e43
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/f68876aeef96ef8b708ab10b9cb47ce0a5adb424

Impacted products

	Vendor	Product	Version

JSON

To clipboard

{
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\next4: improve error handling from ext4_dirhash()\n\nThe ext4_dirhash() will *almost* never fail, especially when the hash\ntree feature was first introduced.  However, with the addition of\nsupport of encrypted, casefolded file names, that function can most\ncertainly fail today.\n\nSo make sure the callers of ext4_dirhash() properly check for\nfailures, and reflect the errors back up to their callers."
    }
  ],
  "id": "CVE-2023-53473",
  "lastModified": "2025-10-02T19:12:17.160",
  "metrics": {},
  "published": "2025-10-01T12:15:49.557",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/4b3cb1d108bfc2aebb0d7c8a52261a53cf7f5786"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/70d579aefa652a06af97e013e3fbbabbe5a43553"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/b2531936118deb3f479c4fa1bcd787b74b8faa6a"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/c1fae027da61fe8e7eb99f7244297e81bc0f1e43"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/f68876aeef96ef8b708ab10b9cb47ce0a5adb424"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Awaiting Analysis"
}

CVE-2023-53473 (GCVE-0-2023-53473)

Vulnerability from cvelistv5 – Published: 2025-10-01 11:42 – Updated: 2025-10-29 10:50

Summary

Severity ?

No CVSS data available.

Assigner

Linux

References

URL

Tags

	https://git.kernel.org/stable/c/b2531936118deb3f4…
	https://git.kernel.org/stable/c/f68876aeef96ef8b7…
	https://git.kernel.org/stable/c/70d579aefa652a06a…
	https://git.kernel.org/stable/c/c1fae027da61fe8e7…
	https://git.kernel.org/stable/c/4b3cb1d108bfc2aeb…

Impacted products

Vendor

Product

Version

Linux

Affected: b886ee3e778ec2ad43e276fd378ab492cf6819b7 , < b2531936118deb3f479c4fa1bcd787b74b8faa6a (git)
Affected: b886ee3e778ec2ad43e276fd378ab492cf6819b7 , < f68876aeef96ef8b708ab10b9cb47ce0a5adb424 (git)
Affected: b886ee3e778ec2ad43e276fd378ab492cf6819b7 , < 70d579aefa652a06af97e013e3fbbabbe5a43553 (git)
Affected: b886ee3e778ec2ad43e276fd378ab492cf6819b7 , < c1fae027da61fe8e7eb99f7244297e81bc0f1e43 (git)
Affected: b886ee3e778ec2ad43e276fd378ab492cf6819b7 , < 4b3cb1d108bfc2aebb0d7c8a52261a53cf7f5786 (git)

Linux

Affected: 5.2
Unaffected: 0 , < 5.2 (semver)
Unaffected: 5.15.112 , ≤ 5.15.* (semver)
Unaffected: 6.1.29 , ≤ 6.1.* (semver)
Unaffected: 6.2.16 , ≤ 6.2.* (semver)
Unaffected: 6.3.3 , ≤ 6.3.* (semver)
Unaffected: 6.4 , ≤ * (original_commit_for_fix)

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "fs/ext4/hash.c",
            "fs/ext4/namei.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "b2531936118deb3f479c4fa1bcd787b74b8faa6a",
              "status": "affected",
              "version": "b886ee3e778ec2ad43e276fd378ab492cf6819b7",
              "versionType": "git"
            },
            {
              "lessThan": "f68876aeef96ef8b708ab10b9cb47ce0a5adb424",
              "status": "affected",
              "version": "b886ee3e778ec2ad43e276fd378ab492cf6819b7",
              "versionType": "git"
            },
            {
              "lessThan": "70d579aefa652a06af97e013e3fbbabbe5a43553",
              "status": "affected",
              "version": "b886ee3e778ec2ad43e276fd378ab492cf6819b7",
              "versionType": "git"
            },
            {
              "lessThan": "c1fae027da61fe8e7eb99f7244297e81bc0f1e43",
              "status": "affected",
              "version": "b886ee3e778ec2ad43e276fd378ab492cf6819b7",
              "versionType": "git"
            },
            {
              "lessThan": "4b3cb1d108bfc2aebb0d7c8a52261a53cf7f5786",
              "status": "affected",
              "version": "b886ee3e778ec2ad43e276fd378ab492cf6819b7",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "fs/ext4/hash.c",
            "fs/ext4/namei.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "5.2"
            },
            {
              "lessThan": "5.2",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.112",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.29",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.2.*",
              "status": "unaffected",
              "version": "6.2.16",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.3.*",
              "status": "unaffected",
              "version": "6.3.3",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.4",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.15.112",
                  "versionStartIncluding": "5.2",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.1.29",
                  "versionStartIncluding": "5.2",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.2.16",
                  "versionStartIncluding": "5.2",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.3.3",
                  "versionStartIncluding": "5.2",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.4",
                  "versionStartIncluding": "5.2",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\next4: improve error handling from ext4_dirhash()\n\nThe ext4_dirhash() will *almost* never fail, especially when the hash\ntree feature was first introduced.  However, with the addition of\nsupport of encrypted, casefolded file names, that function can most\ncertainly fail today.\n\nSo make sure the callers of ext4_dirhash() properly check for\nfailures, and reflect the errors back up to their callers."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-10-29T10:50:27.391Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/b2531936118deb3f479c4fa1bcd787b74b8faa6a"
        },
        {
          "url": "https://git.kernel.org/stable/c/f68876aeef96ef8b708ab10b9cb47ce0a5adb424"
        },
        {
          "url": "https://git.kernel.org/stable/c/70d579aefa652a06af97e013e3fbbabbe5a43553"
        },
        {
          "url": "https://git.kernel.org/stable/c/c1fae027da61fe8e7eb99f7244297e81bc0f1e43"
        },
        {
          "url": "https://git.kernel.org/stable/c/4b3cb1d108bfc2aebb0d7c8a52261a53cf7f5786"
        }
      ],
      "title": "ext4: improve error handling from ext4_dirhash()",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2023-53473",
    "datePublished": "2025-10-01T11:42:42.875Z",
    "dateReserved": "2025-10-01T11:39:39.401Z",
    "dateUpdated": "2025-10-29T10:50:27.391Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

Sightings

Author	Source	Type	Date

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.

Detection rules are retrieved from Rulezet.

Action not permitted

FKIE_CVE-2023-53473

CVE-2023-53473 (GCVE-0-2023-53473)

Tags

Sightings

Nomenclature