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CVE.org (no NVD analysis yet)· CNA Linux

CVE-2026-98222: KEYS: encrypted: fix integer overflow of datablob_len

Noroxi assessment

Priority: Monitor (action score 0/100)

  • The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
  • Probability of exploitation in the next 30 days: 0.16% (FIRST EPSS).
  • Fixed version: Linux Linux 1e720f63dbafc093a8f5d519f05b67724993edd4, 8697c431e297eb0d0ab13dda6bc172b48a34f05c, a1a98eca102b1cbbc37ff9eaa197ae4e6a3ea4b0; azl3 kernel 6.6.157.1-1 on Azure Linux 3.0 Release Notes; azl3 kernel 6.6.159.1-1 on Azure Linux 3.0 Release Notes.

Low priority for now. Upgrade to Linux Linux 1e720f63dbafc093a8f5d519f05b67724993edd4, 8697c431e297eb0d0ab13dda6bc172b48a34f05c, a1a98eca102b1cbbc37ff9eaa197ae4e6a3ea4b0; azl3 kernel 6.6.157.1-1 on Azure Linux 3.0 Release Notes; azl3 kernel 6.6.159.1-1 on Azure Linux 3.0 Release Notes or later.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · FIRST EPSS

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.

—No exploit Fix available
Published
Oct 6, 2026
Updated
Oct 19, 2026
EPSS
0.1% · 6th percentile
CWE
—

Report tools

JSON

Action score

0

Monitor

Low priority for now.

CVSS
0 / 40 · —
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.1%

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  • Not in KEV: no record of exploitation in the wild
  • No public exploit code on record
  • A fix has been released

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Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

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Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

—

Versions reported by the vendor

Affected version ranges reported by the assigning authority (Linux). Independent of NVD's CPE analysis and usually ahead of it.

  • Linux Linux

    • 2.6.38affected
    • 7e70cb4978507cf31d76b90e4cfb4c28cad87f0c and later · before 1e720f63dbafc093a8f5d519f05b67724993edd4affected · git
    • 7e70cb4978507cf31d76b90e4cfb4c28cad87f0c and later · before a1a98eca102b1cbbc37ff9eaa197ae4e6a3ea4b0affected · git
    • 7e70cb4978507cf31d76b90e4cfb4c28cad87f0c and later · before cca38f2102a4cd35eda8d48950df4817b4b24757affected · git
    • 7e70cb4978507cf31d76b90e4cfb4c28cad87f0c and later · before 8697c431e297eb0d0ab13dda6bc172b48a34f05caffected · git
    • before 2.6.38not affected · semver
    • 6.12.112 and later · up to and including 6.12.*not affected · semver
    • 6.18.54 and later · up to and including 6.18.*not affected · semver
    • 7.2.8 and later · up to and including 7.2.*not affected · semver
    • 7.3 and laternot affected · original_commit_for_fix

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

EcosystemPackageAffected rangeFix
AlmaLinux:8bpftoolbefore 4.18.0-553.180.1.el8_104.18.0-553.180.1.el8_10
AlmaLinux:8kernelbefore 4.18.0-553.180.1.el8_104.18.0-553.180.1.el8_10
AlmaLinux:8kernel-abi-stablelistsbefore 4.18.0-553.180.1.el8_104.18.0-553.180.1.el8_10
AlmaLinux:8kernel-corebefore 4.18.0-553.180.1.el8_104.18.0-553.180.1.el8_10
AlmaLinux:8kernel-cross-headersbefore 4.18.0-553.180.1.el8_104.18.0-553.180.1.el8_10
AlmaLinux:8kernel-debugbefore 4.18.0-553.180.1.el8_104.18.0-553.180.1.el8_10
AlmaLinux:8kernel-debug-corebefore 4.18.0-553.180.1.el8_104.18.0-553.180.1.el8_10
AlmaLinux:8kernel-debug-develbefore 4.18.0-553.180.1.el8_104.18.0-553.180.1.el8_10
AlmaLinux:8kernel-debug-modulesbefore 4.18.0-553.180.1.el8_104.18.0-553.180.1.el8_10
AlmaLinux:8kernel-debug-modules-extrabefore 4.18.0-553.180.1.el8_104.18.0-553.180.1.el8_10
AlmaLinux:8kernel-develbefore 4.18.0-553.180.1.el8_104.18.0-553.180.1.el8_10
AlmaLinux:8kernel-docbefore 4.18.0-553.180.1.el8_104.18.0-553.180.1.el8_10
AlmaLinux:8kernel-headersbefore 4.18.0-553.180.1.el8_104.18.0-553.180.1.el8_10
AlmaLinux:8kernel-modulesbefore 4.18.0-553.180.1.el8_104.18.0-553.180.1.el8_10
AlmaLinux:8kernel-modules-extrabefore 4.18.0-553.180.1.el8_104.18.0-553.180.1.el8_10
AlmaLinux:8kernel-rtbefore 4.18.0-553.180.1.rt7.521.el8_104.18.0-553.180.1.rt7.521.el8_10
AlmaLinux:8kernel-rt-corebefore 4.18.0-553.180.1.rt7.521.el8_104.18.0-553.180.1.rt7.521.el8_10
AlmaLinux:8kernel-rt-debugbefore 4.18.0-553.180.1.rt7.521.el8_104.18.0-553.180.1.rt7.521.el8_10
AlmaLinux:8kernel-rt-debug-corebefore 4.18.0-553.180.1.rt7.521.el8_104.18.0-553.180.1.rt7.521.el8_10
AlmaLinux:8kernel-rt-debug-develbefore 4.18.0-553.180.1.rt7.521.el8_104.18.0-553.180.1.rt7.521.el8_10
AlmaLinux:8kernel-rt-debug-modulesbefore 4.18.0-553.180.1.rt7.521.el8_104.18.0-553.180.1.rt7.521.el8_10
AlmaLinux:8kernel-rt-debug-modules-extrabefore 4.18.0-553.180.1.rt7.521.el8_104.18.0-553.180.1.rt7.521.el8_10
AlmaLinux:8kernel-rt-develbefore 4.18.0-553.180.1.rt7.521.el8_104.18.0-553.180.1.rt7.521.el8_10
AlmaLinux:8kernel-rt-modulesbefore 4.18.0-553.180.1.rt7.521.el8_104.18.0-553.180.1.rt7.521.el8_10

+95

Same product

linux: all records

Other highest-scoring records for the same primary product.

  • CVE-2026-74705udp: fix potential use-after-free in tunnel segmentation
    40Plan
  • CVE-2026-74612veth: fix skb length accounting after XDP frag adjustment
    40Plan
  • CVE-2026-74475vxlan: use neigh_ha_snapshot() in route_shortcircuit()
    40Plan

Published before and after this one in the same product

  • ← EarlierCVE-2026-98220Oct 6, 2026 · sched_ext: Fix NULL sched deref in kfunc sub-sched error paths
    0Monitor
  • ← EarlierCVE-2026-98221Oct 6, 2026 · KEYS: trusted: Fix tpm2_load_cmd() boundary check
    0Monitor
  • Later →CVE-2026-98223Oct 6, 2026 · mm: filemap: retain mapped dropbehind folios
    0Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / packageFixed versionSource
Linux Linux1e720f63dbafc093a8f5d519f05b67724993edd4Vendor (CNA)
Linux Linux8697c431e297eb0d0ab13dda6bc172b48a34f05cVendor (CNA)
Linux Linuxa1a98eca102b1cbbc37ff9eaa197ae4e6a3ea4b0Vendor (CNA)
Linux Linuxcca38f2102a4cd35eda8d48950df4817b4b24757Vendor (CNA)
azl3 kernel 6.6.157.1-1 on Azure Linux 3.0Release NotesMicrosoft (MSRC)
azl3 kernel 6.6.159.1-1 on Azure Linux 3.0Release NotesMicrosoft (MSRC)
azl3 kernel 6.6.161.1-1 on Azure Linux 3.0Release NotesMicrosoft (MSRC)
almalinux:kernel5.14.0-687.61.1.el9_8 · AlmaLinux:9Package registry (OSV)
almalinux:kernel-64k5.14.0-687.61.1.el9_8 · AlmaLinux:9Package registry (OSV)
almalinux:kernel-64k-core5.14.0-687.61.1.el9_8 · AlmaLinux:9Package registry (OSV)
almalinux:kernel-64k-debug5.14.0-687.61.1.el9_8 · AlmaLinux:9Package registry (OSV)
almalinux:kernel-64k-debug-core5.14.0-687.61.1.el9_8 · AlmaLinux:9Package registry (OSV)
almalinux:kernel-64k-debug-devel5.14.0-687.61.1.el9_8 · AlmaLinux:9Package registry (OSV)
almalinux:kernel-64k-debug-devel-matched5.14.0-687.61.1.el9_8 · AlmaLinux:9Package registry (OSV)
almalinux:kernel-64k-debug-modules5.14.0-687.61.1.el9_8 · AlmaLinux:9Package registry (OSV)
almalinux:kernel-64k-debug-modules-core5.14.0-687.61.1.el9_8 · AlmaLinux:9Package registry (OSV)
almalinux:kernel-64k-debug-modules-extra5.14.0-687.61.1.el9_8 · AlmaLinux:9Package registry (OSV)
almalinux:kernel-64k-devel5.14.0-687.61.1.el9_8 · AlmaLinux:9Package registry (OSV)
almalinux:kernel-64k-devel-matched5.14.0-687.61.1.el9_8 · AlmaLinux:9Package registry (OSV)
debian:linux6.12.113-1 · Debian:13Package registry (OSV)
debian:linux7.2.8-1 · Debian:14Package registry (OSV)
debian:linux-6.126.12.113-1~deb12u1 · Debian:12Package registry (OSV)
rocky linux:kernel0:5.14.0-687.61.1.el9_8 · Rocky Linux:9Package registry (OSV)
rocky linux:kernel-rt0:4.18.0-553.180.1.rt7.521.el8_10 · Rocky Linux:8Package registry (OSV)

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

  1. Published
  2. Fix recordedsame day
  3. TodayNov 9, 2026+34 d
EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

No nightly-computed relations.

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

No CVSS vector for this record, so attack conditions can't be derived.

Weakness class (CWE)

—

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

MITRE has no CAPEC/ATT&CK mapping for this CWE.

Change log

  1. Exploit maturity— → none
  2. Fix✗ → ✓

For records you follow, these changes also arrive as notifications. →

References

Show all references (3 more)

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records