Description
In the Linux kernel, the following vulnerability has been resolved:
media: uvcvideo: Fix deadlock if uvc_status_stop is called from async_ctrl.work
If a UVC camera has an asynchronous control, uvc_status_stop may be called from async_ctrl.work:
uvc_ctrl_status_event_work() uvc_ctrl_status_event() uvc_ctrl_clear_handle() uvc_pm_put() uvc_status_put() uvc_status_stop() cancel_work_sync()
This will cause a deadlock, since cancel_work_sync will wait for uvc_ctrl_status_event_work to complete before returning.
Fix this by returning early from uvc_status_stop if we are currently in the work function. flush_status now remains false until uvc_status_start is called again, ensuring that uvc_ctrl_status_event_work won't resubmit the URB.
Metrics
No CVSS score has been published yet.
Affected software
Source: the vendor's advisory (CNA). NVD analysis pending.
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux | >= a32d9c41bdb86e09ce731aa5fd3add89ac2103a5, < 3659deaf7bf690510899a73906b772740d94342c; >= a32d9c41bdb86e09ce731aa5fd3add89ac2103a5, < 7f6c5fe1633272c926361b73d83dfc6ae01b1504; >= a32d9c41bdb86e09ce731aa5fd3add89ac2103a5, < 6d27f92c54ce28cfbd2a8a479a96d6f4a781b7d2 |
| Linux | Linux | 6.16 |
References
Timeline
- Published
- Aug 15, 2026
- Last modified
- Aug 17, 2026
- NVD status
- Received