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CVE-2026-68205
media: v4l2-fwnode: Fix subdev owner overwritten in v4l2_async_register_subdev_sensor()
Overview
Description

In the Linux kernel, the following vulnerability has been resolved: media: v4l2-fwnode: Fix subdev owner overwritten in v4l2_async_register_subdev_sensor() The v4l2 helper v4l2_async_register_subdev_sensor() calls v4l2_async_register_subdev(), which is a macro that expands to __v4l2_async_register_subdev(sd,THIS_MODULE). Since the macro is expanded inside v4l2-fwnode.c, THIS_MODULE resolves to the v4l2-fwnode module rather than the sensor driver module that originally set sd->owner. When v4l2-fwnode is built-in, THIS_MODULE evaluates to NULL, which then overwrites the sensor driver's owner with NULL. This causes the problem that the sensor module's reference count is never incremented during async registration, so the module can be removed while the subdevice is still in use by a notifier (e.g., a CSI-2 receiver bridge driver). Fix this by renaming v4l2_async_register_subdev_sensor() to __v4l2_async_register_subdev_sensor() with an added explicit module argument and introducing a wrapper macro: #define v4l2_async_register_subdev_sensor(sd) \ __v4l2_async_register_subdev_sensor(sd, THIS_MODULE) This ensures the sensor driver module is properly referenced even when the sensor driver does not init the owner field before calling v4l2_async_register_subdev_sensor() and prevents premature module removal.

Details
INFO

Published Date :

Aug. 10, 2026, 1:20 p.m.

Last Modified :

Aug. 17, 2026, 5:18 a.m.

Remotely Exploit :

No

Source :

416baaa9-dc9f-4396-8d5f-8c081fb06d67
Impact
Affected Products

The following products are affected by CVE-2026-68205 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Linux linux_kernel
: Total Affected Vendor : 1 | Products : 1
Solution
Update the Linux kernel to resolve issues with module owner overwriting during subdevice registration.
  • Update the Linux kernel to the latest stable version.
  • Ensure sensor drivers correctly set the owner field.
  • Verify module reference counts are managed properly.
  • Test subdevice registration and module removal scenarios.
References
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2026-68205.

URL Resource
https://git.kernel.org/stable/c/067887ff93fddbb3a3fb84c900bc654ecfe5ba61
https://git.kernel.org/stable/c/06cb687a5132fcffe624c0070576ab852ac6b568
https://git.kernel.org/stable/c/47ef04cd13d38010b580056a9d8840aaab944841
https://git.kernel.org/stable/c/caea6bc68c925d63ca33d21b2255f47181943d61
https://git.kernel.org/stable/c/cf9732fd6c4f2f803ccfc46d89489b6635590270
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2026-68205 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2026-68205 weaknesses.

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2026-68205 vulnerability anywhere in the article.

Results are limited to the first 20 news articles due to potential performance issues.

The following table lists the changes that have been made to the CVE-2026-68205 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Modified by 416baaa9-dc9f-4396-8d5f-8c081fb06d67

    Aug. 17, 2026

    Action Type Old Value New Value
    Changed Affected [{'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': 'aef69d54755d45edefbf347a51efd1673d7daed9', 'lessThan': '47ef04cd13d38010b580056a9d8840aaab944841', 'versionType': 'git'}, {'status': 'affected', 'version': 'aef69d54755d45edefbf347a51efd1673d7daed9', 'lessThan': 'caea6bc68c925d63ca33d21b2255f47181943d61', 'versionType': 'git'}, {'status': 'affected', 'version': 'aef69d54755d45edefbf347a51efd1673d7daed9', 'lessThan': 'cf9732fd6c4f2f803ccfc46d89489b6635590270', 'versionType': 'git'}, {'status': 'affected', 'version': 'aef69d54755d45edefbf347a51efd1673d7daed9', 'lessThan': '067887ff93fddbb3a3fb84c900bc654ecfe5ba61', 'versionType': 'git'}, {'status': 'affected', 'version': 'aef69d54755d45edefbf347a51efd1673d7daed9', 'lessThan': '06cb687a5132fcffe624c0070576ab852ac6b568', 'versionType': 'git'}], 'programFiles': ['drivers/media/v4l2-core/v4l2-fwnode.c', 'include/media/v4l2-async.h'], 'defaultStatus': 'unaffected'}, {'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '4.15'}, {'status': 'unaffected', 'version': '0', 'lessThan': '4.15', 'versionType': 'semver'}, {'status': 'unaffected', 'version': '6.6.151', 'versionType': 'semver', 'lessThanOrEqual': '6.6.*'}, {'status': 'unaffected', 'version': '6.12.101', 'versionType': 'semver', 'lessThanOrEqual': '6.12.*'}, {'status': 'unaffected', 'version': '6.18.42', 'versionType': 'semver', 'lessThanOrEqual': '6.18.*'}, {'status': 'unaffected', 'version': '7.1.6', 'versionType': 'semver', 'lessThanOrEqual': '7.1.*'}, {'status': 'unaffected', 'version': '7.2-rc1', 'versionType': 'original_commit_for_fix', 'lessThanOrEqual': '*'}], 'programFiles': ['drivers/media/v4l2-core/v4l2-fwnode.c', 'include/media/v4l2-async.h'], 'defaultStatus': 'affected'}] [{'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': 'aef69d54755d45edefbf347a51efd1673d7daed9', 'lessThan': '47ef04cd13d38010b580056a9d8840aaab944841', 'versionType': 'git'}, {'status': 'affected', 'version': 'aef69d54755d45edefbf347a51efd1673d7daed9', 'lessThan': 'caea6bc68c925d63ca33d21b2255f47181943d61', 'versionType': 'git'}, {'status': 'affected', 'version': 'aef69d54755d45edefbf347a51efd1673d7daed9', 'lessThan': 'cf9732fd6c4f2f803ccfc46d89489b6635590270', 'versionType': 'git'}, {'status': 'affected', 'version': 'aef69d54755d45edefbf347a51efd1673d7daed9', 'lessThan': '067887ff93fddbb3a3fb84c900bc654ecfe5ba61', 'versionType': 'git'}, {'status': 'affected', 'version': 'aef69d54755d45edefbf347a51efd1673d7daed9', 'lessThan': '06cb687a5132fcffe624c0070576ab852ac6b568', 'versionType': 'git'}], 'programFiles': ['drivers/media/v4l2-core/v4l2-fwnode.c', 'include/media/v4l2-async.h'], 'defaultStatus': 'unaffected'}, {'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '4.15'}, {'status': 'unaffected', 'version': '0', 'lessThan': '4.15', 'versionType': 'semver'}, {'status': 'unaffected', 'version': '6.6.151', 'versionType': 'semver', 'lessThanOrEqual': '6.6.*'}, {'status': 'unaffected', 'version': '6.12.101', 'versionType': 'semver', 'lessThanOrEqual': '6.12.*'}, {'status': 'unaffected', 'version': '6.18.42', 'versionType': 'semver', 'lessThanOrEqual': '6.18.*'}, {'status': 'unaffected', 'version': '7.1.6', 'versionType': 'semver', 'lessThanOrEqual': '7.1.*'}, {'status': 'unaffected', 'version': '7.2', 'versionType': 'original_commit_for_fix', 'lessThanOrEqual': '*'}], 'programFiles': ['drivers/media/v4l2-core/v4l2-fwnode.c', 'include/media/v4l2-async.h'], 'defaultStatus': 'affected'}]
  • New CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67

    Aug. 10, 2026

    Action Type Old Value New Value
    Added Affected [{'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': 'aef69d54755d45edefbf347a51efd1673d7daed9', 'lessThan': '47ef04cd13d38010b580056a9d8840aaab944841', 'versionType': 'git'}, {'status': 'affected', 'version': 'aef69d54755d45edefbf347a51efd1673d7daed9', 'lessThan': 'caea6bc68c925d63ca33d21b2255f47181943d61', 'versionType': 'git'}, {'status': 'affected', 'version': 'aef69d54755d45edefbf347a51efd1673d7daed9', 'lessThan': 'cf9732fd6c4f2f803ccfc46d89489b6635590270', 'versionType': 'git'}, {'status': 'affected', 'version': 'aef69d54755d45edefbf347a51efd1673d7daed9', 'lessThan': '067887ff93fddbb3a3fb84c900bc654ecfe5ba61', 'versionType': 'git'}, {'status': 'affected', 'version': 'aef69d54755d45edefbf347a51efd1673d7daed9', 'lessThan': '06cb687a5132fcffe624c0070576ab852ac6b568', 'versionType': 'git'}], 'programFiles': ['drivers/media/v4l2-core/v4l2-fwnode.c', 'include/media/v4l2-async.h'], 'defaultStatus': 'unaffected'}, {'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '4.15'}, {'status': 'unaffected', 'version': '0', 'lessThan': '4.15', 'versionType': 'semver'}, {'status': 'unaffected', 'version': '6.6.151', 'versionType': 'semver', 'lessThanOrEqual': '6.6.*'}, {'status': 'unaffected', 'version': '6.12.101', 'versionType': 'semver', 'lessThanOrEqual': '6.12.*'}, {'status': 'unaffected', 'version': '6.18.42', 'versionType': 'semver', 'lessThanOrEqual': '6.18.*'}, {'status': 'unaffected', 'version': '7.1.6', 'versionType': 'semver', 'lessThanOrEqual': '7.1.*'}, {'status': 'unaffected', 'version': '7.2-rc1', 'versionType': 'original_commit_for_fix', 'lessThanOrEqual': '*'}], 'programFiles': ['drivers/media/v4l2-core/v4l2-fwnode.c', 'include/media/v4l2-async.h'], 'defaultStatus': 'affected'}]
    Added Description In the Linux kernel, the following vulnerability has been resolved: media: v4l2-fwnode: Fix subdev owner overwritten in v4l2_async_register_subdev_sensor() The v4l2 helper v4l2_async_register_subdev_sensor() calls v4l2_async_register_subdev(), which is a macro that expands to __v4l2_async_register_subdev(sd,THIS_MODULE). Since the macro is expanded inside v4l2-fwnode.c, THIS_MODULE resolves to the v4l2-fwnode module rather than the sensor driver module that originally set sd->owner. When v4l2-fwnode is built-in, THIS_MODULE evaluates to NULL, which then overwrites the sensor driver's owner with NULL. This causes the problem that the sensor module's reference count is never incremented during async registration, so the module can be removed while the subdevice is still in use by a notifier (e.g., a CSI-2 receiver bridge driver). Fix this by renaming v4l2_async_register_subdev_sensor() to __v4l2_async_register_subdev_sensor() with an added explicit module argument and introducing a wrapper macro: #define v4l2_async_register_subdev_sensor(sd) \ __v4l2_async_register_subdev_sensor(sd, THIS_MODULE) This ensures the sensor driver module is properly referenced even when the sensor driver does not init the owner field before calling v4l2_async_register_subdev_sensor() and prevents premature module removal.
    Added Reference https://git.kernel.org/stable/c/067887ff93fddbb3a3fb84c900bc654ecfe5ba61
    Added Reference https://git.kernel.org/stable/c/06cb687a5132fcffe624c0070576ab852ac6b568
    Added Reference https://git.kernel.org/stable/c/47ef04cd13d38010b580056a9d8840aaab944841
    Added Reference https://git.kernel.org/stable/c/caea6bc68c925d63ca33d21b2255f47181943d61
    Added Reference https://git.kernel.org/stable/c/cf9732fd6c4f2f803ccfc46d89489b6635590270
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CVSS
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