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Back to active CVEs
Critical · CVSS 9.8CVE-2026-22984

libceph: prevent potential out-of-bounds reads in handle_auth_done()CVE-2026-22984

Answer in brief

CVE-2026-22984 records a Critical severity (CVSS 9.8) vulnerability in libceph: prevent potential out-of-bounds reads in handle_auth_done(). 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 Jan 23, 2026Updated Oct 19, 2026Source checked Oct 19, 2026First seen by HOL Oct 19, 2026Material review Oct 19, 2026
Upstream Advisory

Record context

Vulnerability class
Buffer Overflow
EPSS
Not reported
CWE IDs
CWE-125
Source
CVE List V5
Source checked
Oct 19, 2026
References
6 linked sources
Open source record

Key facts

Risk
Critical · CVSS 9.8
Exploitation
Not marked as known exploited
Affected software
2 mapped packages or products
Fix availability
Available

Why this deserves its current priority

CVSS is 9.8. 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>=cd1a677cad994021b19665ed476aea63f5d54f31 <194cfe2af4d2a1de599d39dad636b47c2f6c2c96 || >=cd1a677cad994021b19665ed476aea63f5d54f31 <79fe3511db416d2f2edcfd93569807cb02736e5e || >=cd1a677cad994021b19665ed476aea63f5d54f31 <ef208ea331ef688729f64089b895ed1b49e842e3 || >=cd1a677cad994021b19665ed476aea63f5d54f31 <2802ef3380fa8c4a08cda51ec1f085b1a712e9e2 || >=cd1a677cad994021b19665ed476aea63f5d54f31 <2d653bb63d598ae4b096dd678744bdcc34ee89e8 || >=cd1a677cad994021b19665ed476aea63f5d54f31 <818156caffbf55cb4d368f9c3cac64e458fb49c9194cfe2af4d2a1de599d39dad636b47c2f6c2c96, 79fe3511db416d2f2edcfd93569807cb02736e5e, ef208ea331ef688729f64089b895ed1b49e842e3, 2802ef3380fa8c4a08cda51ec1f085b1a712e9e2, 2d653bb63d598ae4b096dd678744bdcc34ee89e8, 818156caffbf55cb4d368f9c3cac64e458fb49c9
Linux/Linuxgeneric5.11Not 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 194cfe2af4d2a1de599d39dad636b47c2f6c2c96 if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

  1. Published upstream

    Jan 23, 2026

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

  2. Source modified

    Oct 19, 2026

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

  3. First seen by HOL

    Oct 19, 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 referencegit.kernel.org
Upstream source description

In the Linux kernel, the following vulnerability has been resolved: libceph: prevent potential out-of-bounds reads in handle_auth_done() Perform an explicit bounds check on payload_len to avoid a possible out-of-bounds access in the callout. [ idryomov: changelog ]

Quoted source text, attributed separately from HOL analysis.

Related CVEs

  • Gimp: gimp: heap out-of-bounds read in xcf text-layer parasite parsingAlso CWE-125