CVE-2026-72177: Linux kernel · mm/damon/sysfs-schemes: fix dir put orders in access_pattern_add_dirs()
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, 14:05 UTC
Rated by Threat Radar · CVSS not yet scored by NVD
- EPSS
- 0.2% chance of exploitation in 30 days – higher than 11% 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 15 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 correct the reference handling order in the damon_sysfs_access_pattern_add_dirs() and damon_sysfs_scheme_add_dirs() functions. Applying the official kernel updates that include this fix will mitigate the vulnerability.
Description
A vulnerability in the Linux kernel's mm/damon/sysfs-schemes subsystem caused incorrect reference handling in error paths of certain functions, potentially leading to uninitialized memory dereference or memory leaks. This flaw was fixed by correcting the order in which directory references are put during error handling in the access_pattern_add_dirs() and scheme_add_dirs() functions. The issue affects specific Linux kernel versions and has been patched.
References
- nvd.nist.gov/vuln/detail/CVE-2026-72177 (opens in a new tab)
- git.kernel.org/stable/c/0710cc97962ca3bcabaa15ce7fead300faf726cd (opens in a new tab)
- git.kernel.org/stable/c/a8c0592a80e954825f2ba29e7f32893f1df762f2 (opens in a new tab)
- git.kernel.org/stable/c/d58fdbe37a829fd2e5803dd4e5a72992dd8c5368 (opens in a new tab)
- git.kernel.org/stable/c/e03442b0c48bdb034f5b7cf9f3b76d8025576071 (opens in a new tab)
- git.kernel.org/stable/c/ee59df7a886a35113f309e3eb791060c46f79bb1 (opens in a new tab)
- git.kernel.org/stable/c/f18c561eb9c51f1ba3adb6117926a98a66599848 (opens in a new tab)
- ubuntu.com/security/CVE-2026-72177 (opens in a new tab)
- cve.org/CVERecord?id=CVE-2026-72177 (opens in a new tab)
- git.kernel.org/linus/d58fdbe37a829fd2e5803dd4e5a72992dd8c5368 (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)