CVE-2026-68210 media: stm32: dcmi: unregister notifier on probe failure
A missing notifier unregistration in the STM32 DCMI driver during probe failure can lead to resource leaks or system instability, requiring a kernel patch.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-68210?
CVE-2026-68210 is a high-severity vulnerability in Linux, published on 10 Aug 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
In the Linux kernel, the following vulnerability has been resolved:
media: stm32: dcmi: unregister notifier on probe failure
dcmi_graph_init() registers the async notifier before dcmi_probe() toggles the reset line. If reset_control_assert() or reset_control_deassert() fails afterwards, probe returns through err_cleanup and the driver core will not call dcmi_remove().
Unregister the notifier before cleaning it up on that error path, matching the successful remove path and the V4L2 async notifier lifetime rules.
[hverkuil: added Fixes tag]
Which versions are affected by CVE-2026-68210?
How do I fix CVE-2026-68210?
Apply the vendor's patch.
Is CVE-2026-68210 being exploited?
There is no known exploitation of CVE-2026-68210 in the wild and no public exploit code.
Sources
Also known as BELL-CVE-2026-68210, DEBIAN-CVE-2026-68210, GHSA-76fm-3jg5-qp3h, UBUNTU-CVE-2026-68210.