CVE-2026-68205media: v4l2-fwnode: Fix subdev owner overwritten in v4l2_async_register_subdev_sensor()
- —Not scoredno CVSS score yet
- 0.21%Exploitation in 30 daysEPSS · top 88% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
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.
Timeline
ID reserved
By Linux
- 11 days later
· 11 days later
Published
- 3 months later
· 3 months later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
No CVSS score yet: neither the CNA, CISA nor NVD has scored this CVE. NVD status: Received.
- EPSS (exploitation in 30 days)
- 0.21% · top 88% of all CVEs (14 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: no · Technical impact: partial
The list uses the assigner's score when there is one, then CISA's, then NVD's: Not scored.
Affected products
- affected aef69d54755d45edefbf347a51efd1673d7daed9 – < f35e85a9d919d7954d9a7752e4644c0b403ad025
- affected aef69d54755d45edefbf347a51efd1673d7daed9 – < c5e47cf9a6cffef73a1ed40b3648e6097aac165a
- affected aef69d54755d45edefbf347a51efd1673d7daed9 – < 47ef04cd13d38010b580056a9d8840aaab944841
- affected aef69d54755d45edefbf347a51efd1673d7daed9 – < caea6bc68c925d63ca33d21b2255f47181943d61
- affected aef69d54755d45edefbf347a51efd1673d7daed9 – < cf9732fd6c4f2f803ccfc46d89489b6635590270
- affected aef69d54755d45edefbf347a51efd1673d7daed9 – < 067887ff93fddbb3a3fb84c900bc654ecfe5ba61
- affected aef69d54755d45edefbf347a51efd1673d7daed9 – < 06cb687a5132fcffe624c0070576ab852ac6b568
- affected 4.15
- unaffected < 4.15
- unaffected 5.10.266 – ≤ 5.10.*
- unaffected 5.15.217 – ≤ 5.15.*
- unaffected 6.6.151 – ≤ 6.6.*
- unaffected 6.12.101 – ≤ 6.12.*
- unaffected 6.18.42 – ≤ 6.18.*
- unaffected 7.1.6 – ≤ 7.1.*
- unaffected 7.2 – ≤ *
References
References7
- https://git.kernel.org/stable/c/f35e85a9d919d7954d9a7752e4644c0b403ad025 (opens in a new tab)
- https://git.kernel.org/stable/c/c5e47cf9a6cffef73a1ed40b3648e6097aac165a (opens in a new tab)
- https://git.kernel.org/stable/c/47ef04cd13d38010b580056a9d8840aaab944841 (opens in a new tab)
- https://git.kernel.org/stable/c/caea6bc68c925d63ca33d21b2255f47181943d61 (opens in a new tab)
- https://git.kernel.org/stable/c/cf9732fd6c4f2f803ccfc46d89489b6635590270 (opens in a new tab)
- https://git.kernel.org/stable/c/067887ff93fddbb3a3fb84c900bc654ecfe5ba61 (opens in a new tab)
- https://git.kernel.org/stable/c/06cb687a5132fcffe624c0070576ab852ac6b568 (opens in a new tab)
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2026-55306 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2026-68205)Record last updated .