CVE-2025-40338: Linux kernel · ASoC: Intel: avs: Do not share the name pointer between components
Affects Linux kernelSource GCVE Database
Not known to be exploited · fixed in 6.17.0-1007.7~24.04.1 : patch Linux kernel soon.
Data as of 26 Oct 2026, 10:12 UTC
Rated by Threat Radar · No CVSS score from NVD or the CNA
- EPSS
- 0.2% chance of exploitation in 30 days – higher than 15% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
- Patch
- Available – fixed in 6.17.0-1007.7~24.04.1, 6.17.0-1008.8~24.04.1, 6.17.0-1008.8 +6
Exploitation evidence
Disclosed: evidence found.
CVE published 9 Dec 2025
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
Upgrade to a fixed release listed under Affected software.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
Ubuntu 25.10linuxpkg:deb/ubuntu/linux@6.17.0-14.14?arch=source&distro=questingOther threats | Affected
| Fixed in
|
Ubuntu 25.10linux-awspkg:deb/ubuntu/linux-aws@6.17.0-1007.7?arch=source&distro=questingOther threats | Affected
| Fixed in
|
Ubuntu 25.10linux-azurepkg:deb/ubuntu/linux-azure@6.17.0-1008.8?arch=source&distro=questingOther threats | Affected
| Fixed in
|
Ubuntu 25.10linux-azure-fdepkg:deb/ubuntu/linux-azure-fde@6.17.0-1017.17?arch=source&distro=questingOther threats | Affected
| Fixed in– |
Ubuntu 25.10linux-gcppkg:deb/ubuntu/linux-gcp@6.17.0-1007.7?arch=source&distro=questingOther threats | Affected
| Fixed in
|
Ubuntu 25.10linux-oraclepkg:deb/ubuntu/linux-oracle@6.17.0-1007.7?arch=source&distro=questingOther 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 security update fixing this vulnerability is available and should be applied. The fix duplicates the 'name' pointer to prevent use-after-free errors and adjusts the initialization order. Users should update to Linux kernel versions 6.17.0-1007.7~24.04.1 or later, 6.17.0-1008.8~24.04.1 or later, 6.17.0-1008.8 or later, and 6.17.0-1011.11 or later as provided by their distribution. No additional mitigation is required beyond applying the official patch.
Description
A use-after-free vulnerability in the Linux kernel's ASoC Intel AVS component was resolved by preventing the sharing of the 'name' pointer between components. Sharing this pointer could lead to use-after-free errors during component teardown. The fix involves duplicating the name and updating the operation order to avoid overwriting the component name if already set. This vulnerability affects multiple Linux kernel versions prior to 6.17.0-1007.7~24.04.1, 6.17.0-1008.8~24.04.1, 6.17.0-1008.8, and 6.17.0-1011.11. The issue was addressed in a security update released by Ubuntu in February 2026 as part of a broader Linux kernel security patch.
References
- ubuntu.com/security/CVE-2025-40338 (opens in a new tab)
- cve.org/CVERecord?id=CVE-2025-40338 (opens in a new tab)
- git.kernel.org/linus/4dee5c1cc439b0d5ef87f741518268ad6a95b23d (opens in a new tab)
- git.kernel.org/stable/c/128bf29c992988f8b4f3829227339908fde5ec86 (opens in a new tab)
- git.kernel.org/stable/c/4dee5c1cc439b0d5ef87f741518268ad6a95b23d (opens in a new tab)
- ubuntu.com/security/notices/USN-8029-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-8030-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-8029-2 (opens in a new tab)
- ubuntu.com/security/notices/USN-8048-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-8029-3 (opens in a new tab)