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CVE-2026-80872 (GCVE-0-2026-80872)

Vulnerability from cvelistv5 – Published: 2026-09-04 16:48 – Updated: 2026-09-04 16:48
VLAI
Title
ALSA: hda/tas2781: Cancel async firmware request at unbind
Summary
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.
Severity
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 5be27f1e3ec98975c18a91e220d4847d0dec9671 , < f8272331da877eec8fe8e89a1e98e6a710e12490 (git)
Affected: 5be27f1e3ec98975c18a91e220d4847d0dec9671 , < da9e3be9cf31d7138d23e9e2f7ba1c102ef09f07 (git)
Affected: 5be27f1e3ec98975c18a91e220d4847d0dec9671 , < 5367e2ad14f0ae9350a7aaf2e77c87de39a43ae9 (git)
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Linux Linux Affected: 6.6
Unaffected: 0 , < 6.6 (semver)
Unaffected: 6.18.40 , ≤ 6.18.* (semver)
Unaffected: 7.1.5 , ≤ 7.1.* (semver)
Unaffected: 7.2 , ≤ * (original_commit_for_fix)
guessed Create a notification for this product.
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{
  "containers": {
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        {
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          "product": "Linux",
          "programFiles": [
            "sound/hda/codecs/side-codecs/tas2781_hda_i2c.c",
            "sound/hda/codecs/side-codecs/tas2781_hda_spi.c"
          ],
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              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nALSA: hda/tas2781: Cancel async firmware request at unbind\n\nTAS2781 HDA I2C and SPI queue RCA firmware loading from component\nbind with request_firmware_nowait(). The firmware loader keeps the\ncallback module pinned and holds a device reference, but the callback\nstill uses driver-private HDA state.\n\nComponent unbind removes controls and DSP state immediately. Later\ndevice removal tears down the TAS2781 private data, including\ncodec_lock. If the async firmware callback runs after unbind has\nstarted, it can operate on state that is being torn down.\n\nCancel or synchronize the async firmware request before removing\ncontrols and DSP state. A queued callback is cancelled, and an\nalready-running callback is allowed to finish before unbind continues."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-09-04T16:48:37.011Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
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          "url": "https://git.kernel.org/stable/c/5367e2ad14f0ae9350a7aaf2e77c87de39a43ae9"
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    "datePublished": "2026-09-04T16:48:37.011Z",
    "dateReserved": "2026-08-26T14:34:25.798Z",
    "dateUpdated": "2026-09-04T16:48:37.011Z",
    "state": "PUBLISHED"
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      "product_status:known_not_affected": "1",
      "source": "Microsoft CSAF VEX",
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      "title": "ALSA: hda/tas2781: Cancel async firmware request at unbind",
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      "product_status:known_affected": "102",
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      "source": "SUSE CSAF VEX",
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      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2026-80872.json",
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    }
  }
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

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  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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