CVE-2026-93101

Summary

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.

Affected Software

VendorProductVersion RangeStatus
LinuxLinux28a1295795d85a25f2e7dd391c43969e95fcb341 < c7201bd08cad791858337e33ffcd90d8ae4147c2affected
LinuxLinux28a1295795d85a25f2e7dd391c43969e95fcb341 < e190320cebe921f99973c984ac53f317061a011faffected
LinuxLinux28a1295795d85a25f2e7dd391c43969e95fcb341 < 65e55f34fb2d61cb4f8a5dfcb93848af2aea0f32affected
LinuxLinux28a1295795d85a25f2e7dd391c43969e95fcb341 < 9fb74dce5c650cb23b60f6ba0ffcd5024e948a75affected
LinuxLinux28a1295795d85a25f2e7dd391c43969e95fcb341 < 4e72f13d58c4245c177a9d5f54579345554f354daffected
LinuxLinux6.6affected
LinuxLinux0 < 6.6unaffected
LinuxLinux6.6.157 <= 6.6.*unaffected
LinuxLinux6.12.110 <= 6.12.*unaffected
LinuxLinux6.18.52 <= 6.18.*unaffected
LinuxLinux7.2.6 <= 7.2.*unaffected
LinuxLinux7.3-rc1 <= *unaffected

Weaknesses

References