ALSA: hda/tas2781: Cancel async firmware request at unbind

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Summary

CVECVE-2026-80872
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-09-04 17:16:59 UTC
Updated2026-09-04 17:16:59 UTC
DescriptionIn the Linux kernel, the following vulnerability has been resolved: ALSA: hda/tas2781: Cancel async firmware request at unbind TAS2781 HDA I2C and SPI queue RCA firmware loading from component bind with request_firmware_nowait(). The firmware loader keeps the callback module pinned and holds a device reference, but the callback still uses driver-private HDA state. Component unbind removes controls and DSP state immediately. Later device removal tears down the TAS2781 private data, including codec_lock. If the async firmware callback runs after unbind has started, it can operate on state that is being torn down. Cancel or synchronize the async firmware request before removing controls and DSP state. A queued callback is cancelled, and an already-running callback is allowed to finish before unbind continues.

Risk And Classification

EPSS: 0.001550000 probability, percentile 0.049010000 (date 2026-09-07)

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected 5be27f1e3ec98975c18a91e220d4847d0dec9671 f8272331da877eec8fe8e89a1e98e6a710e12490 git Not specified
CNA Linux Linux affected 5be27f1e3ec98975c18a91e220d4847d0dec9671 da9e3be9cf31d7138d23e9e2f7ba1c102ef09f07 git Not specified
CNA Linux Linux affected 5be27f1e3ec98975c18a91e220d4847d0dec9671 5367e2ad14f0ae9350a7aaf2e77c87de39a43ae9 git Not specified
CNA Linux Linux affected 6.6 Not specified
CNA Linux Linux unaffected 6.6 semver Not specified
CNA Linux Linux unaffected 6.18.40 6.18.* semver Not specified
CNA Linux Linux unaffected 7.1.5 7.1.* semver Not specified
CNA Linux Linux unaffected 7.2 * original_commit_for_fix Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/f8272331da877eec8fe8e89a1e98e6a710e12490 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/da9e3be9cf31d7138d23e9e2f7ba1c102ef09f07 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/5367e2ad14f0ae9350a7aaf2e77c87de39a43ae9 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
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