CVE-2026-68444

Kernel panic via unchecked NULL partition UUID

Published Aug 12, 2026 · Updated Aug 12, 2026

NULL-pointer dereference in the ARM FF-A driver in affected Linux kernel versions allows local users to panic the kernel via a NULL UUID. The ffa_partition_info_get() function passes uuid_str to uuid_parse() without checking for NULL, and uuid_is_valid() then dereferences it. Reachability requires an on-host caller able to invoke the ARM FF-A partition-info path with an unsupported NULL partition UUID; the bounded result is a kernel panic and service interruption.

CVSS severity5.5
Medium
EPSS probability0.17%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

NULL-pointer dereference in the ARM FF-A driver in affected Linux kernel versions allows local users to panic the kernel via a NULL UUID. The ffa_partition_info_get() function passes uuid_str to uuid_parse() without checking for NULL, and uuid_is_valid() then dereferences it. Reachability requires an on-host caller able to invoke the ARM FF-A partition-info path with an unsupported NULL partition UUID; the bounded result is a kernel panic and service interruption.

The record

CVE
CVE-2026-68444
Published
Aug 12, 2026
Updated
Aug 12, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
T1499
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Aug 12, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 12, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=5.14
  2. Affected versionversion=d0c0bce831223b08e5bade2cefc93c3ddb790796 <12a42c610e4432e7708cc48d607e5903fffe0aad
  3. Affected versionversion=d0c0bce831223b08e5bade2cefc93c3ddb790796 <7201e56e52d18abf4cd0a2fee45daf9dc08b5b97
  4. Affected versionversion=d0c0bce831223b08e5bade2cefc93c3ddb790796 <86f5ea90f73bb7154593bb96f3411e197f3d4fbe
  5. Affected versionversion=d0c0bce831223b08e5bade2cefc93c3ddb790796 <8ae5f8e4836667fcaffdf2e3c6068b0a8b364dd8
  6. Affected versionversion=d0c0bce831223b08e5bade2cefc93c3ddb790796 <996c5c19d5b5ac5b98a7b5a406b548305841c301

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=5.14; version=d0c0bce831223b08e5bade2cefc93c3ddb790796 <12a42c610e4432e7708cc48d607e5903fffe0aad; version=d0c0bce831223b08e5bade2cefc93c3ddb790796 <7201e56e52d18abf4cd0a2fee45daf9dc08b5b97; version=d0c0bce831223b08e5bade2cefc93c3ddb790796 <86f5ea90f73bb7154593bb96f3411e197f3d4fbe; version=d0c0bce831223b08e5bade2cefc93c3ddb790796 <8ae5f8e4836667fcaffdf2e3c6068b0a8b364dd8; version=d0c0bce831223b08e5bade2cefc93c3ddb790796 <996c5c19d5b5ac5b98a7b5a406b548305841c301

Published CVSS scores

5.5Oracle LinuxCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

T1499Endpoint Denial of Service

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo