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CVE-2023-53408 (GCVE-0-2023-53408)

Vulnerability from cvelistv5 – Published: 2025-09-18 13:58 – Updated: 2026-05-23 15:28
VLAI
Title
trace/blktrace: fix memory leak with using debugfs_lookup()
Summary
In the Linux kernel, the following vulnerability has been resolved: trace/blktrace: 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
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-01-14 19:03 UTC
CWE
  • CWE-401 - Missing Release of Memory after Effective Lifetime
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 78acc7dbd84a8c173a08584750845c31611160f2 , < a2e4b48d6f9b39aa19bafe223f9dd436a692fc80 (git)
Affected: 30939293262eb433c960c4532a0d59c4073b2b84 , < 3036f5f5ae5210797d95446795df01c1249af9ad (git)
Affected: 30939293262eb433c960c4532a0d59c4073b2b84 , < 5286b72fb425291af5f4ca7285d73c16a08d8691 (git)
Affected: 30939293262eb433c960c4532a0d59c4073b2b84 , < 83e8864fee26f63a7435e941b7c36a20fd6fe93e (git)
Affected: 6418634238ade86f2b08192928787f39d8afb58c (git)
Affected: 5.15.27 , < 5.15.99 (semver)
Affected: 5.16.13 , < 5.17 (semver)
guessed Create a notification for this product.
Linux Linux Affected: 5.17
Unaffected: 0 , < 5.17 (semver)
Unaffected: 5.15.99 , ≤ 5.15.* (semver)
Unaffected: 6.1.16 , ≤ 6.1.* (semver)
Unaffected: 6.2.3 , ≤ 6.2.* (semver)
Unaffected: 6.3 , ≤ * (original_commit_for_fix)
guessed Create a notification for this product.
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To make things simpler, just\\ncall debugfs_lookup_and_remove() instead which handles all of the logic\\nat once.\"}], \"cpeApplicability\": [{\"nodes\": [{\"negate\": false, \"cpeMatch\": [{\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.15.99\", \"versionStartIncluding\": \"5.15.27\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.1.16\", \"versionStartIncluding\": \"5.17\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.2.3\", \"versionStartIncluding\": \"5.17\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.3\", \"versionStartIncluding\": \"5.17\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionStartIncluding\": \"5.16.13\"}], \"operator\": \"OR\"}]}], \"providerMetadata\": {\"orgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"shortName\": \"Linux\", \"dateUpdated\": \"2026-05-23T15:28:48.312Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2023-53408\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-05-23T15:28:48.312Z\", \"dateReserved\": \"2025-09-17T14:54:09.739Z\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"datePublished\": \"2025-09-18T13:58:46.767Z\", \"assignerShortName\": \"Linux\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}



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Tags
Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

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.