Vulnerability-Lookup

GHSA-F23R-PCV3-C69Q

Vulnerability from github – Published: 2025-09-15 15:31 – Updated: 2025-12-02 03:31

Details

In the Linux kernel, the following vulnerability has been resolved:

tty: pcn_uart: fix memory leak with using debugfs_lookup()

When calling debugfs_lookup() the result must have dput() called on it, otherwise the memory will leak over time. To make things simpler, just call debugfs_lookup_and_remove() instead which handles all of the logic at once.

Severity

5.5 (Medium)


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

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{
  "affected": [],
  "aliases": [
    "CVE-2023-53173"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-401"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-09-15T14:15:39Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\ntty: pcn_uart: fix memory leak with using debugfs_lookup()\n\nWhen calling debugfs_lookup() the result must have dput() called on it,\notherwise the memory will leak over time.  To make things simpler, just\ncall debugfs_lookup_and_remove() instead which handles all of the logic\nat once.",
  "id": "GHSA-f23r-pcv3-c69q",
  "modified": "2025-12-02T03:31:32Z",
  "published": "2025-09-15T15:31:23Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-53173"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/04a189c720aa2b6091442113ce9b9bc93552dff8"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/139769c4bd8273b5e3f85ea474aa37018fe7e436"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/4459d1e7bd0421b3b6fcd745773d8823f71615ef"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/cf042964c2fa72950bbbf25b2cdd732b873e89db"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2023-53173 (GCVE-0-2023-53173)

Vulnerability from cvelistv5 – Published: 2025-09-15 14:04 – Updated: 2026-05-11 19:39

Title

tty: pcn_uart: fix memory leak with using debugfs_lookup()

Summary

In the Linux kernel, the following vulnerability has been resolved: tty: pcn_uart: fix memory leak with using debugfs_lookup() When calling debugfs_lookup() the result must have dput() called on it, otherwise the memory will leak over time. To make things simpler, just call debugfs_lookup_and_remove() instead which handles all of the logic at once.

Severity

No CVSS data available.

Assigner

Linux

References

4 references

URL	Tags
https://git.kernel.org/stable/c/cf042964c2fa72950…
https://git.kernel.org/stable/c/4459d1e7bd0421b3b…
https://git.kernel.org/stable/c/139769c4bd8273b5e…
https://git.kernel.org/stable/c/04a189c720aa2b609…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 4dec5f1af694526db760dfbb47211236e556e27c , < cf042964c2fa72950bbbf25b2cdd732b873e89db (git) Affected: 4dec5f1af694526db760dfbb47211236e556e27c , < 4459d1e7bd0421b3b6fcd745773d8823f71615ef (git) Affected: 4dec5f1af694526db760dfbb47211236e556e27c , < 139769c4bd8273b5e3f85ea474aa37018fe7e436 (git) Affected: 4dec5f1af694526db760dfbb47211236e556e27c , < 04a189c720aa2b6091442113ce9b9bc93552dff8 (git)
Linux	Linux	Affected: 5.13 Unaffected: 0 , < 5.13 (semver) Unaffected: 5.15.100 , ≤ 5.15.* (semver) Unaffected: 6.1.18 , ≤ 6.1.* (semver) Unaffected: 6.2.5 , ≤ 6.2.* (semver) Unaffected: 6.3 , ≤ * (original_commit_for_fix)

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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/tty/serial/pch_uart.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "cf042964c2fa72950bbbf25b2cdd732b873e89db",
              "status": "affected",
              "version": "4dec5f1af694526db760dfbb47211236e556e27c",
              "versionType": "git"
            },
            {
              "lessThan": "4459d1e7bd0421b3b6fcd745773d8823f71615ef",
              "status": "affected",
              "version": "4dec5f1af694526db760dfbb47211236e556e27c",
              "versionType": "git"
            },
            {
              "lessThan": "139769c4bd8273b5e3f85ea474aa37018fe7e436",
              "status": "affected",
              "version": "4dec5f1af694526db760dfbb47211236e556e27c",
              "versionType": "git"
            },
            {
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              "status": "affected",
              "version": "4dec5f1af694526db760dfbb47211236e556e27c",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/tty/serial/pch_uart.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "5.13"
            },
            {
              "lessThan": "5.13",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.100",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.18",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.2.*",
              "status": "unaffected",
              "version": "6.2.5",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.3",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
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                  "versionStartIncluding": "5.13",
                  "vulnerable": true
                },
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                  "vulnerable": true
                }
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              "negate": false,
              "operator": "OR"
            }
          ]
        }
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        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-11T19:39:41.016Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
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        {
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    "assignerShortName": "Linux",
    "cveId": "CVE-2023-53173",
    "datePublished": "2025-09-15T14:04:07.411Z",
    "dateReserved": "2025-09-15T13:59:19.064Z",
    "dateUpdated": "2026-05-11T19:39:41.016Z",
    "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.

Detection rules are retrieved from Rulezet.

Action not permitted

GHSA-F23R-PCV3-C69Q

CVE-2023-53173 (GCVE-0-2023-53173)

Tags

Sightings

Nomenclature