CVE-2026-80592: Linux kernel · samples/damon/mtier: fail early if address range parameters are invalid
Affects Linux kernelSource GCVE Database
Not known to be exploited · fixed in 7.0.0-1014.14~24.04.1 : update Linux kernel when convenient.
Data as of 26 Oct 2026, 17:16 UTC
Rated by Threat Radar · CVSS not yet scored by NVD
- EPSS
- 0.2% chance of exploitation in 30 days – higher than 10% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
- Patch
- Available – fixed in 7.0.0-1014.14~24.04.1, 7.0.0-1017.17~24.04.1, 7.0.0-1016.16~24.04.1 +11
Exploitation evidence
Disclosed: evidence found.
CVE published 28 Aug 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
Upgrade to a fixed release listed under Affected software.
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 patch is available and should be applied to affected Linux kernel versions to address this issue. The fix involves validating address range parameters early in the damon mtier sample module to prevent warnings and potential instability. Users should update to the fixed kernel versions as provided by their Linux distribution vendors. No additional mitigation is required beyond applying the official patch.
Description
A vulnerability in the Linux kernel's damon mtier sample module could cause a warning and potential instability if address range parameters are invalid. This occurs when the module is enabled before certain node address parameters are properly initialized, leading to a WARN_ONCE() trigger. The issue is fixed by adding parameter validity checks before creating new damon regions. This flaw affects specific Linux kernel versions and has been addressed in official patches.
References
- nvd.nist.gov/vuln/detail/CVE-2026-80592 (opens in a new tab)
- git.kernel.org/stable/c/7746d72c64054976887928d64d2caf25c5a6dcc0 (opens in a new tab)
- git.kernel.org/stable/c/9d360fb820a3b9576d155e720ec44fef54d2efb5 (opens in a new tab)
- git.kernel.org/stable/c/db20589d7b248211f63f4a7f642a49c0832b13ae (opens in a new tab)
- ubuntu.com/security/CVE-2026-80592 (opens in a new tab)
- cve.org/CVERecord?id=CVE-2026-80592 (opens in a new tab)
- git.kernel.org/linus/7746d72c64054976887928d64d2caf25c5a6dcc0 (opens in a new tab)
- ubuntu.com/security/notices/USN-8888-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-8889-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-8887-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-8888-2 (opens in a new tab)
- ubuntu.com/security/notices/USN-8887-2 (opens in a new tab)
- ubuntu.com/security/notices/USN-8887-3 (opens in a new tab)