ALSA: hda/cs35l41: Fix firmware load work teardown

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Summary

CVECVE-2026-64481
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-07-25 10:17:33 UTC
Updated2026-07-25 10:17:33 UTC
DescriptionIn 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device is removed before the queued work runs, the worker can run after teardown and dereference driver state that is no longer valid.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.

Risk And Classification

EPSS: 0.002090000 probability, percentile 0.111700000 (date 2026-07-25)

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected 47ceabd99a28399f8971f4ca0a37ebc0a21dd2a8 8947215c0136c9d905e4a46d824824f8b48a2e5b git Not specified
CNA Linux Linux affected 47ceabd99a28399f8971f4ca0a37ebc0a21dd2a8 ce0a903d0591e3e2c790c5b628802b08d1b287cc git Not specified
CNA Linux Linux affected 47ceabd99a28399f8971f4ca0a37ebc0a21dd2a8 d6a40a4d083ef74d00c8f9516cb5ff07ac70720b git Not specified
CNA Linux Linux affected 47ceabd99a28399f8971f4ca0a37ebc0a21dd2a8 b65020d5398f499c09498c9786dba6d67ae57664 git Not specified
CNA Linux Linux affected 6.0 Not specified
CNA Linux Linux unaffected 6.0 semver Not specified
CNA Linux Linux unaffected 6.12.97 6.12.* semver Not specified
CNA Linux Linux unaffected 6.18.39 6.18.* semver Not specified
CNA Linux Linux unaffected 7.1.4 7.1.* semver Not specified
CNA Linux Linux unaffected 7.2-rc1 * original_commit_for_fix Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/b65020d5398f499c09498c9786dba6d67ae57664 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/8947215c0136c9d905e4a46d824824f8b48a2e5b 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/ce0a903d0591e3e2c790c5b628802b08d1b287cc 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/d6a40a4d083ef74d00c8f9516cb5ff07ac70720b 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
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