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CVE-2026-89944

ASoC: hdac_hda: Fix hlink refcount leak on component registration failure

Description

In the Linux kernel, the following vulnerability has been resolved: ASoC: hdac_hda: Fix hlink refcount leak on component registration failure hdac_hda_dev_probe() gets the HDA link with snd_hdac_ext_bus_link_get() before registering the ASoC component. If component registration fails, the function returns without dropping the link reference. Always call snd_hdac_ext_bus_link_put() after the registration attempt so the reference taken during probe is balanced on both success and failure.

Timeline

  1. ID reserved

    By Linux

  2. · 5 days later

    Published

  3. · 44 days later

    Record updated

Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.

Scores

No CVSS score yet: neither the CNA, CISA nor NVD has scored this CVE. NVD status: Received.

EPSS (exploitation in 30 days)
0.21% · top 89% of all CVEs (11 Nov 2026)
Loading the EPSS history…

The list uses the assigner's score when there is one, then CISA's, then NVD's: Not scored.

Affected products

  • Linux · Linux

    • affected 6bae5ea9498926440ffc883f3dbceb0adc65e492 – < 1c2625fbdeb17376f76c57b7669e6aa6500a7149
    • affected 6bae5ea9498926440ffc883f3dbceb0adc65e492 – < 60b5824ae259ad15f7878e4e763ec31ba4db55f2
    • affected 6bae5ea9498926440ffc883f3dbceb0adc65e492 – < 7eef9ae3b4ef782557526dd8ba0c206f028d8c2f
    • affected 6bae5ea9498926440ffc883f3dbceb0adc65e492 – < e8ea01a0457080b0cc7c69c430c0ab65d84dc377
    • affected 6bae5ea9498926440ffc883f3dbceb0adc65e492 – < cb6b0b1a9d5a61ef841739d42c6211094e9c8e2c
    • affected 6bae5ea9498926440ffc883f3dbceb0adc65e492 – < 6ad4892c4f5cb437a928a02f5b7d37d496aa9268
  • Linux · Linux

    • affected 4.20
    • unaffected < 4.20
    • unaffected 6.1.191 – ≤ 6.1.*
    • unaffected 6.6.160 – ≤ 6.6.*
    • unaffected 6.12.110 – ≤ 6.12.*
    • unaffected 6.18.51 – ≤ 6.18.*
    • unaffected 7.2.5 – ≤ 7.2.*
    • unaffected 7.3 – ≤ *

References

References6

Sources

The same CVE in the primary databases and aggregators, to check against.

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Record last updated .