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Back to active CVEs
Unknown severity · Source severity not reportedCVE-2026-98222

KEYS: encrypted: fix integer overflow of datablob_lenCVE-2026-98222

Answer in brief

CVE-2026-98222 records a Unknown severity vulnerability in KEYS: encrypted: fix integer overflow of datablob_len. 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 Oct 6, 2026Updated Oct 6, 2026Source checked Oct 6, 2026First seen by HOL Oct 6, 2026Material review Oct 6, 2026
Upstream Advisory

Key facts

Risk
Unknown severitySource severity not reported
Exploitation
Not marked as known exploited
Affected software
2 mapped packages or products
Fix availability
Available

Why this deserves its current priority

A CVSS score is not reported in the current record. 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>=7e70cb4978507cf31d76b90e4cfb4c28cad87f0c <1e720f63dbafc093a8f5d519f05b67724993edd4 || >=7e70cb4978507cf31d76b90e4cfb4c28cad87f0c <a1a98eca102b1cbbc37ff9eaa197ae4e6a3ea4b0 || >=7e70cb4978507cf31d76b90e4cfb4c28cad87f0c <cca38f2102a4cd35eda8d48950df4817b4b24757 || >=7e70cb4978507cf31d76b90e4cfb4c28cad87f0c <8697c431e297eb0d0ab13dda6bc172b48a34f05c1e720f63dbafc093a8f5d519f05b67724993edd4, a1a98eca102b1cbbc37ff9eaa197ae4e6a3ea4b0, cca38f2102a4cd35eda8d48950df4817b4b24757, 8697c431e297eb0d0ab13dda6bc172b48a34f05c
Linux/Linuxgeneric2.6.38Not 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 1e720f63dbafc093a8f5d519f05b67724993edd4 if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

  1. Published upstream

    Oct 6, 2026

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

  2. Source modified

    Oct 6, 2026

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

  3. First seen by HOL

    Oct 6, 2026

Sources and claim methodology

  • 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: KEYS: encrypted: fix integer overflow of datablob_len encrypted_key_alloc() stores datablob_len in a u16. It is computed from multiple string and payload lengths. If the result exceeds U16_MAX, the assignment truncates the allocation size. KASAN reports a 32760-byte slab-out-of-bounds write when __ekey_init() copies the master key description into the undersized buffer. The total payload length stored in key->datalen is also a u16. Use check_add_overflow() to reject values that do not fit either destination, and use kzalloc_flex() for the flexible-array allocation.

Quoted source text, attributed separately from HOL analysis.

Related CVEs

  • wifi: cfg80211: get the wiphy out of a dying network namespaceSame linux/linux package
  • wifi: mac80211: unlist vifs when their netdev is unregisteredSame linux/linux package
  • wifi: mac80211: only operate on TDLS peers in the TDLS codeSame linux/linux package
  • wifi: mac80211: reset the LED state when ifup failsSame linux/linux package
  • wifi: mac80211: reset state when starting AP failsSame linux/linux package
  • wifi: mac80211: abort chanswitch when leaving a meshSame linux/linux package

Record context

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