VulnerabilityPublished 15 Aug 2026Updated 6 Nov 2026

CVE-2026-72177: Linux kernel · mm/damon/sysfs-schemes: fix dir put orders in access_pattern_add_dirs()

Affects Linux kernelSource CVE Database V5

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Not known to be exploited · fixed in f18c561eb9c51f1ba3adb6117926a98a66599848 : update Linux kernel when convenient.

Data as of 6 Nov 2026, 17:19 UTC

Severity

Unrated

Rated by Threat Radar · CVSS not yet scored by NVD

Thin evidence

One scorer or none

Exploitation: No evidence of active exploitation and no public proof of concept
Automatable: Attackers cannot reliably automate steps 1–4 of the kill chain
Technical impact: Limited control over the software or limited information exposure

CISA SSVC assessment, 2026-11-06.

Patch

Available – fixed in f18c561eb9c51f1ba3adb6117926a98a66599848, ee59df7a886a35113f309e3eb791060c46f79bb1, e03442b0c48bdb034f5b7cf9f3b76d8025576071 +3

Exploitation evidence

Disclosed: evidence found.
CVE published 15 Aug 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: 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 6 Nov 2026.

Disclosed: The CVE record is public on cve.org. Its publication is t = 0.
Detectable: A public nuclei template can find exposed instances, for defenders and attackers alike.
Weaponized: A Metasploit exploit module or Exploit-DB entry exists (Metasploit scanner modules do not count), or CISA SSVC or the CVSS exploit maturity reports a public proof of concept.
Exploited in the wild: CISA KEV lists it, CISA SSVC rates exploitation active, or a source reports attacks.
Observed by OffSeq Mirage: OffSeq Mirage honeypot sensors recorded attack traffic for this CVE, or found exposed hosts without attack traffic.

Moments are spaced evenly, not to scale; a dashed line marks a gap of six months or more. Deltas count from t = 0. Sources that give only a date (CISA KEV, Exploit-DB, or a time of exactly 00:00Z) read “same day” rather than hours. Metasploit modules carry the flaw’s disclosure date, not their release date, and nuclei templates carry no date, so both appear above but not on the timeline.

What to do

Upgrade to a fixed release listed under Affected software.

Affected software

Product	Affected	Fixed in
LinuxLinux	Affected ≥ 7e84b1f8212a038ebeee06de56db7181148fa0cd, < f18c561eb9c51f1ba3adb6117926a98a66599848	Fixed in f18c561eb9c51f1ba3adb6117926a98a66599848
LinuxLinux	Affected ≥ 7e84b1f8212a038ebeee06de56db7181148fa0cd, < ee59df7a886a35113f309e3eb791060c46f79bb1	Fixed in ee59df7a886a35113f309e3eb791060c46f79bb1
LinuxLinux	Affected ≥ 7e84b1f8212a038ebeee06de56db7181148fa0cd, < e03442b0c48bdb034f5b7cf9f3b76d8025576071	Fixed in e03442b0c48bdb034f5b7cf9f3b76d8025576071
LinuxLinux	Affected ≥ 7e84b1f8212a038ebeee06de56db7181148fa0cd, < d58fdbe37a829fd2e5803dd4e5a72992dd8c5368	Fixed in d58fdbe37a829fd2e5803dd4e5a72992dd8c5368
LinuxLinux	Affected ≥ 7e84b1f8212a038ebeee06de56db7181148fa0cd, < a8c0592a80e954825f2ba29e7f32893f1df762f2	Fixed in a8c0592a80e954825f2ba29e7f32893f1df762f2
LinuxLinux	Affected ≥ 7e84b1f8212a038ebeee06de56db7181148fa0cd, < 0710cc97962ca3bcabaa15ce7fead300faf726cd	Fixed in 0710cc97962ca3bcabaa15ce7fead300faf726cd

Description

In the Linux kernel, the following vulnerability has been resolved: mm/damon/sysfs-schemes: fix dir put orders in access_pattern_add_dirs() Patch series "mm/damon/sysfs-schemes: fix wrong directories put orders in error paths". Error paths of damon_sysfs_access_pattern_add_dirs() and damon_sysfs_scheme_add_dirs() functions put references to directories in wrong orders. As a result, uninitialized memory dereference and/or memory leak can happen. Fix those. This patch (of 2): In access_pattern_add_dirs(), error handling path puts references starting from setup failed directories. If the failure happpened from the initial allication in the setup functions, uninitialized memory dereference happen. The allocation failures will not commonly happen, but the consequence is quite bad. Fix the wrong reference put orders. The issue was discovered [1] by Sashiko.

References

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