CVE-2026-98055: Linux kernel · ASoC: Intel: avs: Clean up the bus when fetching ML caps fails
Affects Linux kernelSource GCVE Database
Not known to be exploited.
Data as of 26 Oct 2026, 17:16 UTC
Rated by Threat Radar · CVSS not yet scored by NVD
- EPSS
- 0.1% chance of exploitation in 30 days – higher than 6% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Exploitation evidence
Disclosed: evidence found.
CVE published 25 Sep 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
Ubuntu 26.04 LTSlinuxpkg:deb/ubuntu/linux?arch=source&distro=resoluteOther threats | Affected
| Fixed in– |
Ubuntu 26.04 LTSlinux-awspkg:deb/ubuntu/linux-aws?arch=source&distro=resoluteOther threats | Affected
| Fixed in– |
Ubuntu 26.04 LTSlinux-azurepkg:deb/ubuntu/linux-azure?arch=source&distro=resoluteOther threats | Affected
| Fixed in– |
Ubuntu 26.04 LTSlinux-azure-fdepkg:deb/ubuntu/linux-azure-fde?arch=source&distro=resoluteOther threats | Affected
| Fixed in– |
Ubuntu 26.04 LTSlinux-gcppkg:deb/ubuntu/linux-gcp?arch=source&distro=resoluteOther threats | Affected
| Fixed in– |
Ubuntu 26.04 LTSlinux-gkepkg:deb/ubuntu/linux-gke?arch=source&distro=resoluteOther threats | Affected
| Fixed in– |
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
AI-suggested
A fix has been applied to the Linux kernel to properly handle error conditions in the AVS driver by cleaning up resources when fetching ML capabilities fails. Users should update to a patched kernel version containing this fix. Since this is a kernel-level issue, applying the official kernel update is the recommended remediation.
Description
A vulnerability in the Linux kernel related to the ASoC Intel AVS driver has been resolved. The issue involves improper cleanup of the bus when fetching machine learning capabilities fails in the snd_hdac_ext_bus_get_ml_capabilities() function. The error path in avs_pci_probe() was updated to check and handle the failure properly, including cleaning up the hlink list if subsequent steps fail.
References
- ubuntu.com/security/CVE-2026-98055 (opens in a new tab)
- cve.org/CVERecord?id=CVE-2026-98055 (opens in a new tab)
- git.kernel.org/stable/c/559ea14b7ae7c7562b48759fa545b64958f35b73 (opens in a new tab)
- git.kernel.org/stable/c/498bf26639e99a98e7a3db880a7da8251aaf4289 (opens in a new tab)
- git.kernel.org/stable/c/04447cd14ebcc924f2d745dd33b9506735bda5b4 (opens in a new tab)
- git.kernel.org/stable/c/2d96325e8ed97ec70623f788c35cca5d68c34351 (opens in a new tab)
- nvd.nist.gov/vuln/detail/CVE-2026-98055 (opens in a new tab)
- git.kernel.org/stable/c/68885c606a6e41dd4d3fe72f11241a6a438246ed (opens in a new tab)
- git.kernel.org/stable/c/a16ca1987ce8666c13482437db21232d41600e3f (opens in a new tab)