CVE-2026-53149 (GCVE-0-2026-53149)

Vulnerability from cvelistv5 – Published: 2026-06-25 08:38 – Updated: 2026-06-25 08:38
VLAI
Title
thunderbolt: Bound root directory content to block size
Summary
In the Linux kernel, the following vulnerability has been resolved: thunderbolt: Bound root directory content to block size __tb_property_parse_dir() does not check that content_offset + content_len fits within block_len for the root directory case. When rootdir->length equals or exceeds block_len - 2, the entry loop reads past the allocated property block. Add a bounds check after computing content_offset and content_len to reject directories whose content extends past the block.
Severity
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: cdae7c07e3e3509eaabc18c1640a55dc5b99c179 , < 5c7657d38d07268124782f03519f07c22a5814fb (git)
Affected: cdae7c07e3e3509eaabc18c1640a55dc5b99c179 , < b212bc161d8a9937b42153723a4a3f2f74fab528 (git)
Affected: cdae7c07e3e3509eaabc18c1640a55dc5b99c179 , < 1912be23daf4afc8d24ce916021ab68ca4c679db (git)
Affected: cdae7c07e3e3509eaabc18c1640a55dc5b99c179 , < 4d0b1524caadb04c10a71f3f88692c63dcb39115 (git)
Affected: cdae7c07e3e3509eaabc18c1640a55dc5b99c179 , < 0a32040a48db8cf35de48b85d6115df5623e4964 (git)
Affected: cdae7c07e3e3509eaabc18c1640a55dc5b99c179 , < 60ba6217460792356a238299edd675d91d46bab4 (git)
Affected: cdae7c07e3e3509eaabc18c1640a55dc5b99c179 , < cbeb68cbaa0a6f979ef428a7f2d0268c082ba166 (git)
Affected: cdae7c07e3e3509eaabc18c1640a55dc5b99c179 , < 65423079c7420e3dbf9a7aa345c243a3f5752e5d (git)
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Linux Linux Affected: 4.15
Unaffected: 0 , < 4.15 (semver)
Unaffected: 5.10.259 , ≤ 5.10.* (semver)
Unaffected: 5.15.210 , ≤ 5.15.* (semver)
Unaffected: 6.1.176 , ≤ 6.1.* (semver)
Unaffected: 6.6.143 , ≤ 6.6.* (semver)
Unaffected: 6.12.94 , ≤ 6.12.* (semver)
Unaffected: 6.18.36 , ≤ 6.18.* (semver)
Unaffected: 7.0.13 , ≤ 7.0.* (semver)
Unaffected: 7.1 , ≤ * (original_commit_for_fix)
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{
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          "programFiles": [
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              "version": "0",
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      "descriptions": [
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          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nthunderbolt: Bound root directory content to block size\n\n__tb_property_parse_dir() does not check that content_offset +\ncontent_len fits within block_len for the root directory case.\nWhen rootdir-\u003elength equals or exceeds block_len - 2, the entry\nloop reads past the allocated property block.\n\nAdd a bounds check after computing content_offset and content_len\nto reject directories whose content extends past the block."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-06-25T08:38:34.869Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
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        },
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    "cveId": "CVE-2026-53149",
    "datePublished": "2026-06-25T08:38:34.869Z",
    "dateReserved": "2026-06-09T07:44:35.387Z",
    "dateUpdated": "2026-06-25T08:38:34.869Z",
    "state": "PUBLISHED"
  },
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  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
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      "date": "2026-07-01",
      "epss": "0.00176",
      "percentile": "0.07392"
    },
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  }
}


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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.