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
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)
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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": "2026-08-05T01:00:22Z",
      "cve": "CVE-2024-26954",
      "id": "CVE-2024-26954",
      "initial_release_date": "2024-05-03T02:09:48Z",
      "product_status:known_not_affected": "330",
      "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": "19"
    },
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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",
      "dataVersion": "5.2"
    }
  }
}



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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.