CVE-2026-93101

Description

In the Linux kernel, the following vulnerability has been resolved: media: v4l2-async: Unregister sub-device if asc_list is empty When my em28xx USB device that uses the i2c tvp5150 driver is disconnected, it crashes. The cause is that the tvp5150 i2c module uses v4l2_async, but the em28xx driver does not since it predates v4l2_async. In that corner case sd->asc_list is empty, so v4l2_async_unregister_subdev() never calls v4l2_device_unregister_subdev(). Modify the code so that, if sd->asc_list is empty, v4l2_device_unregister_subdev() is still called.

References

• https://git.kernel.org/stable/c/4e72f13d58c4245c177a9d5f54579345554f354d
• https://git.kernel.org/stable/c/65e55f34fb2d61cb4f8a5dfcb93848af2aea0f32
• https://git.kernel.org/stable/c/9fb74dce5c650cb23b60f6ba0ffcd5024e948a75
• https://git.kernel.org/stable/c/c7201bd08cad791858337e33ffcd90d8ae4147c2
• https://git.kernel.org/stable/c/e190320cebe921f99973c984ac53f317061a011f