CVE-2026-80911: Linux kernel · ASoC: SOF: sof-audio: Fix error path in sof_widget_setup_unlocked()
Affects Linux kernelSource GCVE Database
Not known to be exploited.
Data as of 26 Oct 2026, 12:55 UTC
Rated by Threat Radar · CVSS not yet scored by NVD
- EPSS
- 0.1% chance of exploitation in 30 days – higher than 4% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Exploitation evidence
Disclosed: evidence found.
CVE published 4 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 for this vulnerability has been implemented in the Linux kernel source code. Users should apply the official kernel updates that include this patch. Since this is a kernel-level fix, upgrading to a kernel version containing the patch is the recommended remediation. Patch status is not explicitly confirmed in the input data; users should verify with the vendor or kernel maintainers for the exact fixed versions and apply updates accordingly.
Description
In the Linux kernel, the following vulnerability has been resolved: ASoC: SOF: sof-audio: Fix error path in sof_widget_setup_unlocked() If either tplg_ops->dai_config or widget_kcontrol_setup fail during widget setup we would double decrement the use_count of the widget because the sof_widget_free_unlocked() would be called twice, similarly the core_put would be invoked twice as well. Since the use_count and core_put() is handled within the widget_free function we need to return without falling through the pipe_widget_free label. The fixes tag is picked to the last change around this part of the code which is adequately old enough for backporting purposes.
References
- nvd.nist.gov/vuln/detail/CVE-2026-80911 (opens in a new tab)
- git.kernel.org/stable/c/8cba53b862e1437257ec206d303ff942684284f1 (opens in a new tab)
- git.kernel.org/stable/c/b270ed327380428581bbcbd85707f62e942428d7 (opens in a new tab)
- git.kernel.org/stable/c/c06995637f6a4667f2b540ac65315bfc8196a099 (opens in a new tab)
- git.kernel.org/stable/c/d48691e70d4a9434b71039d4ed12bb0df4601acf (opens in a new tab)
- git.kernel.org/stable/c/e780e4917d43683224812400fe3dc4816fceba75 (opens in a new tab)
- ubuntu.com/security/CVE-2026-80911 (opens in a new tab)
- cve.org/CVERecord?id=CVE-2026-80911 (opens in a new tab)
- git.kernel.org/linus/e780e4917d43683224812400fe3dc4816fceba75 (opens in a new tab)