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CVE-2024-26954 (GCVE-0-2024-26954)

Vulnerability from cvelistv5 – Published: 2024-05-01 05:18 – Updated: 2026-08-05 11:28
VLAI
Title
ksmbd: fix slab-out-of-bounds in smb_strndup_from_utf16()
Summary
In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix slab-out-of-bounds in smb_strndup_from_utf16() If ->NameOffset of smb2_create_req is smaller than Buffer offset of smb2_create_req, slab-out-of-bounds read can happen from smb2_open. This patch set the minimum value of the name offset to the buffer offset to validate name length of smb2_create_req().
Severity
8.1 (High)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-09-10 15:45 UTC
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 0626e6641f6b467447c81dd7678a69c66f7746cf , < d70c2e0904ab3715c5673fd45788a464a246d1db (git)
Affected: 0626e6641f6b467447c81dd7678a69c66f7746cf , < 9e4937cbc150f9d5a9b5576e1922ef0b5ed2eb72 (git)
Affected: 0626e6641f6b467447c81dd7678a69c66f7746cf , < 3b8da67191e938a63d2736dabb4ac5d337e5de57 (git)
Affected: 0626e6641f6b467447c81dd7678a69c66f7746cf , < 4f97e6a9d62cb1fce82fbf4baff44b83221bc178 (git)
Affected: 0626e6641f6b467447c81dd7678a69c66f7746cf , < a80a486d72e20bd12c335bcd38b6e6f19356b0aa (git)
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Linux Linux Affected: 5.15
Unaffected: 0 , < 5.15 (semver)
Unaffected: 6.1.119 , ≤ 6.1.* (semver)
Unaffected: 6.6.32 , ≤ 6.6.* (semver)
Unaffected: 6.7.12 , ≤ 6.7.* (semver)
Unaffected: 6.8.3 , ≤ 6.8.* (semver)
Unaffected: 6.9 , ≤ * (original_commit_for_fix)
guessed Create a notification for this product.
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    "redhat_vex": {
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      "current_release_date": "2026-08-04T19:08:10+00:00",
      "cve": "CVE-2024-26954",
      "id": "CVE-2024-26954",
      "initial_release_date": "2024-05-01T00:00:00+00:00",
      "product_status:known_not_affected": "198",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: ksmbd: fix slab-out-of-bounds in smb_strndup_from_utf16()",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2024/cve-2024-26954.json",
      "version": "3"
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      "current_release_date": "2026-08-30T02:42:48Z",
      "cve": "CVE-2024-26954",
      "id": "CVE-2024-26954",
      "initial_release_date": "2024-05-03T02:09:48Z",
      "product_status:known_not_affected": "385",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2024-26954",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2024-26954.json",
      "version": "20"
    },
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      "cveMetadata": "{\"cveId\": \"CVE-2024-26954\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-08-05T11:28:35.439Z\", \"dateReserved\": \"2024-02-19T14:20:24.200Z\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"datePublished\": \"2024-05-01T05:18:47.428Z\", \"assignerShortName\": \"Linux\"}",
      "dataType": "CVE_RECORD",
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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.


Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.