PT-2026-64702 · Linux · Linux

CVE-2026-64481 · Publicado 2026-07-25 · Atualizado 2026-07-25

NVD

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device is removed before the queued work runs, the worker can run after teardown and dereference driver state that is no longer valid.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.

Identificadores relacionados

CVE-2026-64481

Produtos afetados

Linux

Referências · 5

• https://git.kernel.org/stable/c/8947215c0136c9d905e4a46d824824f8b48a2e5b · Nota
• https://git.kernel.org/stable/c/d6a40a4d083ef74d00c8f9516cb5ff07ac70720b · Nota
• https://git.kernel.org/stable/c/ce0a903d0591e3e2c790c5b628802b08d1b287cc · Nota
• https://git.kernel.org/stable/c/b65020d5398f499c09498c9786dba6d67ae57664 · Nota
• https://nvd.nist.gov/vuln/detail/CVE-2026-64481 · Nota de Segurança