github - ghsa-96w3-wxxm-9x2q

GHSA-96W3-WXXM-9X2Q

Vulnerability from github – Published: 2025-10-01 12:30 – Updated: 2025-10-01 12:30

Details

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.

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{
  "affected": [],
  "aliases": [
    "CVE-2023-53473"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-10-01T12:15:49Z",
    "severity": null
  },
  "details": "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": "GHSA-96w3-wxxm-9x2q",
  "modified": "2025-10-01T12:30:29Z",
  "published": "2025-10-01T12:30:29Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-53473"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/4b3cb1d108bfc2aebb0d7c8a52261a53cf7f5786"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/70d579aefa652a06af97e013e3fbbabbe5a43553"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/b2531936118deb3f479c4fa1bcd787b74b8faa6a"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/c1fae027da61fe8e7eb99f7244297e81bc0f1e43"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/f68876aeef96ef8b708ab10b9cb47ce0a5adb424"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

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

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

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.

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

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{
  "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
                },
                {
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                  "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

GHSA-96W3-WXXM-9X2Q

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

Tags

Sightings

Nomenclature