CVE-2026-68220

Kernel memory leak via incomplete subdevice cleanup

Published Aug 10, 2026 · Updated Aug 10, 2026

Resource leakage in the NXP Image Sensor Interface driver in affected Linux kernel versions allows local users to consume kernel memory. Crossbar and pipe initialization allocates active subdevice state, but both cleanup paths omit v4l2_subdev_cleanup(), leaving 192 bytes allocated per removal. Triggering requires CAP_SYS_MODULE privileges and compatible NXP hardware; no crash or broader impact is reported.

CVSS severityUnavailable
Unscored
EPSS probability0.21%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Resource leakage in the NXP Image Sensor Interface driver in affected Linux kernel versions allows local users to consume kernel memory. Crossbar and pipe initialization allocates active subdevice state, but both cleanup paths omit v4l2_subdev_cleanup(), leaving 192 bytes allocated per removal. Triggering requires CAP_SYS_MODULE privileges and compatible NXP hardware; no crash or broader impact is reported.

The record

CVE
CVE-2026-68220
Published
Aug 10, 2026
Updated
Aug 10, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
CWE-772, T1499.001
Attack vector
local
Privileges
admin

Timeline

How it unfolded

  1. Aug 10, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 10, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

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

  1. Affected versionversion=6.4
  2. Affected versionversion=cf21f328fcafacf4f96e7a30ef9dceede1076378 <549dd1afce2cf79a826d1f9742effb4565d52871
  3. Affected versionversion=cf21f328fcafacf4f96e7a30ef9dceede1076378 <567418eedd25b3d86d489807682030b4b98b73d9
  4. Affected versionversion=cf21f328fcafacf4f96e7a30ef9dceede1076378 <9c5ddbabc31fda93a508d9b8f0c776a4a08e49f5
  5. Affected versionversion=cf21f328fcafacf4f96e7a30ef9dceede1076378 <9e61258fbc3cfc053e4c2ed72254c2de76772354
  6. Affected versionversion=cf21f328fcafacf4f96e7a30ef9dceede1076378 <f04ec98605420e7c2c1ad6d2f6fb26692d4f218a

What conditions does exploitation require?

Attack vectorlocal
Required privilegesadmin

What is affected?

The Linux Kernel Organization · Linuxversion=6.4; version=cf21f328fcafacf4f96e7a30ef9dceede1076378 <549dd1afce2cf79a826d1f9742effb4565d52871; version=cf21f328fcafacf4f96e7a30ef9dceede1076378 <567418eedd25b3d86d489807682030b4b98b73d9; version=cf21f328fcafacf4f96e7a30ef9dceede1076378 <9c5ddbabc31fda93a508d9b8f0c776a4a08e49f5; version=cf21f328fcafacf4f96e7a30ef9dceede1076378 <9e61258fbc3cfc053e4c2ed72254c2de76772354; version=cf21f328fcafacf4f96e7a30ef9dceede1076378 <f04ec98605420e7c2c1ad6d2f6fb26692d4f218a

Published CVSS scores

No CVSS assessment is available in this record.

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.

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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
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-772Missing Release of Resource after Effective Lifetime
T1499.001Endpoint Denial of Service: OS Exhaustion Flood

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

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Your stack

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