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

• Severity: unknown
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-09-25 · updated 2026-10-19

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.

Affected products

• Linux kernel: 5.19 — fixed in 7.3

How to fix

Upgrade to a fixed version: Linux kernel 7.3. Check the vendor advisory for mitigations.

References

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

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