CVE-2026-80872 is a vulnerability in Linux Kernel
Published on September 4, 2026
ALSA: hda/tas2781: Cancel async firmware request at unbind
In 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.
Products Associated with CVE-2026-80872
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Affected Versions
Linux:- Version 5be27f1e3ec98975c18a91e220d4847d0dec9671 and below f8272331da877eec8fe8e89a1e98e6a710e12490 is affected.
- Version 5be27f1e3ec98975c18a91e220d4847d0dec9671 and below da9e3be9cf31d7138d23e9e2f7ba1c102ef09f07 is affected.
- Version 5be27f1e3ec98975c18a91e220d4847d0dec9671 and below 5367e2ad14f0ae9350a7aaf2e77c87de39a43ae9 is affected.
- Version 6.6 is affected.
- Before 6.6 is unaffected.
- Version 6.18.40, <= 6.18.* is unaffected.
- Version 7.1.5, <= 7.1.* is unaffected.
- Version 7.2, <= * is unaffected.