PT-2026-64702 · Linux · Linux
CVE-2026-64481
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Published
2026-07-25
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Updated
2026-07-25
None
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In the Linux kernel, the following vulnerability has been resolved:
ALSA: hda/cs35l41: Fix firmware load work teardown
cs35l41 hda creates ALSA controls whose private data points at the
cs35l41 hda object. The firmware load control can also queue
fw load work.
Those controls are not removed on component unbind, and device remove
only cancels fw load work through cs35l41 remove dsp(). That helper is
skipped when halo initialized is false. With firmware autostart
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state that is no longer valid.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
fw load work to drain any request that was already queued. Also cancel
the work unconditionally during device remove before runtime PM teardown.
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Related Identifiers
Affected Products
Linux