CVE-2026-64481

In the Linux kernel, the following vulnerability has been resolved:

ALSA: hda/cs35l41: Fix firmware load work teardown

cs35l41hda creates ALSA controls whose private data points at the cs35l41hda object. The firmware load control can also queue fwloadwork.

Those controls are not removed on component unbind, and device remove only cancels fwloadwork through cs35l41removedsp(). That helper is skipped when haloinitialized is false. With firmwareautostart disabled, a firmware load can be requested before the DSP has been initialized. If the component or device is removed before the queued work runs, the worker can run after teardown and dereference driver state that is no longer valid.

Track the created controls and remove them on unbind so no new control callback can reach the driver data or queue more work. Then cancel fwloadwork to drain any request that was already queued. Also cancel the work unconditionally during device remove before runtime PM teardown.