CVE-2026-74437: Linux

Описание

Оригинално описание

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.

Засегнати продукти

• Linux Linux: a32d9c41bdb86e09ce731aa5fd3add89ac2103a5 преди 3659deaf7bf690510899a73906b772740d94342c; a32d9c41bdb86e09ce731aa5fd3add89ac2103a5 преди 7f6c5fe1633272c926361b73d83dfc6ae01b1504; a32d9c41bdb86e09ce731aa5fd3add89ac2103a5 преди 6d27f92c54ce28cfbd2a8a479a96d6f4a781b7d2
• Linux Linux: 6.16; преди 6.16; 6.18.40 до 6.18.*; 7.1.5 до 7.1.*; от 7.2 нататък

История

Други уязвимости в Linux Linux

• 8.1CVE-2026-99270
• 7.8CVE-2026-99269
• CVE-2026-99265
• CVE-2026-99261
• CVE-2026-99260

Първоизточници

• https://www.cve.org/CVERecord?id=CVE-2026-74437
• https://nvd.nist.gov/vuln/detail/CVE-2026-74437
• https://git.kernel.org/stable/c/3659deaf7bf690510899a73906b772740d94342c
• https://git.kernel.org/stable/c/7f6c5fe1633272c926361b73d83dfc6ae01b1504
• https://git.kernel.org/stable/c/6d27f92c54ce28cfbd2a8a479a96d6f4a781b7d2