CVE-2026-74437media: uvcvideo: Fix deadlock if uvc_status_stop is called from async_ctrl.work
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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.
- CVSS
- Not yet scored
- Weakness (CWE)
- Not given
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Linux
- NVD analysis
- Received
- Record last updated
- Aug 17, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Linux Linux linux:linux (from the name) | from a32d9c41bdb86e09ce731aa5fd3add89ac2103a5 before 3659deaf7bf690510899a73906b772740d94342c; from a32d9c41bdb86e09ce731aa5fd3add89ac2103a5 before 7f6c5fe1633272c926361b73d83dfc6ae01b1504; from a32d9c41bdb86e09ce731aa5fd3add89ac2103a5 before 6d27f92c54ce28cfbd2a8a479a96d6f4a781b7d2 | CNA record |
References
- https://git.kernel.org/stable/c/3659deaf7bf690510899a73906b772740d94342c
- https://git.kernel.org/stable/c/7f6c5fe1633272c926361b73d83dfc6ae01b1504
- https://git.kernel.org/stable/c/6d27f92c54ce28cfbd2a8a479a96d6f4a781b7d2
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.