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Back to active CVEs
High · CVSS 8.1CVE-2024-26954

ksmbd: fix slab-out-of-bounds in smb_strndup_from_utf16()CVE-2024-26954

Answer in brief

CVE-2024-26954 records a High severity (CVSS 8.1) vulnerability in ksmbd: fix slab-out-of-bounds in smb_strndup_from_utf16(). The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published May 1, 2024Updated Aug 5, 2026Source checked Nov 4, 2026First seen by HOL Aug 5, 2026Material review Aug 5, 2026
Upstream Advisory

Key facts

Risk
High · CVSS 8.1
Exploitation
Not marked as known exploited
Affected software
2 mapped packages or products
Fix availability
Available

Why this deserves its current priority

CVSS is 8.1. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
PackageAffected rangeFixed version
Linux/Linuxgeneric>=0626e6641f6b467447c81dd7678a69c66f7746cf <d70c2e0904ab3715c5673fd45788a464a246d1db || >=0626e6641f6b467447c81dd7678a69c66f7746cf <9e4937cbc150f9d5a9b5576e1922ef0b5ed2eb72 || >=0626e6641f6b467447c81dd7678a69c66f7746cf <3b8da67191e938a63d2736dabb4ac5d337e5de57 || >=0626e6641f6b467447c81dd7678a69c66f7746cf <4f97e6a9d62cb1fce82fbf4baff44b83221bc178 || >=0626e6641f6b467447c81dd7678a69c66f7746cf <a80a486d72e20bd12c335bcd38b6e6f19356b0aad70c2e0904ab3715c5673fd45788a464a246d1db, 9e4937cbc150f9d5a9b5576e1922ef0b5ed2eb72, 3b8da67191e938a63d2736dabb4ac5d337e5de57, 4f97e6a9d62cb1fce82fbf4baff44b83221bc178, a80a486d72e20bd12c335bcd38b6e6f19356b0aa
Linux/Linuxgeneric5.15Not reported

Recommended response

  1. 1Check inventory. Check lockfiles and deployed manifests for Linux/Linux, Linux/Linux.
  2. 2Review the reported fix. Update Linux/Linux to d70c2e0904ab3715c5673fd45788a464a246d1db if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

  1. Published upstream

    May 1, 2024

    Evidence: source:cvelist:source_dates:source-dates:record

  2. Source modified

    Aug 5, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  3. First seen by HOL

    Aug 5, 2026

Sources and claim methodology

  • Source referencegit.kernel.org
  • Source referencegit.kernel.org
  • Source referencegit.kernel.org
  • Source referencegit.kernel.org
  • Source referencegit.kernel.org
  • Source referencelists.debian.org
Upstream source description

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().

Quoted source text, attributed separately from HOL analysis.

Record context

Vulnerability class
Vulnerability
EPSS
Not reported
CWE IDs
Not reported
Source
CVE List V5
Source checked
Nov 4, 2026
References
6 linked sources
Open source record