5.5

CVE-2026-23144: mm/damon/sysfs: cleanup attrs subdirs on context dir setup failure

Modified
AliasesUBUNTU-CVE-2026-23144DEBIAN-CVE-2026-23144
Published 14-02-2026Last modified 19-10-2026

Vulnerability summary

CVE-2026-23144 is a medium (CVSS 5.5) vulnerability in linux. EPSS estimates a 0.14% chance of exploitation in the next 30 days, higher than 3.6% of scored vulnerabilities.

Priority
Routine

Not severe (CVSS 5.5, local access); no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?
CVSS score
5.5/10
010
Medium · v3.1 (NVD)
EPSS score
0.14%
0%100%
Low · +0.01 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 28 · Related 19
MGASA-2026-0097MGASA-2026-0098OPENSUSE-SU-2026:20416-1RHSA-2026:10108RHSA-2026:6153RHSA-2026:6632

Timeline

  1. 14-02-2026
    PublishedVulnerability first disclosed.
  2. 19-10-2026
    Last modifiedVulnerability information updated.

Description

In the Linux kernel, the following vulnerability has been resolved: mm/damon/sysfs: cleanup attrs subdirs on context dir setup failure When a context DAMON sysfs directory setup is failed after setup of attrs/ directory, subdirectories of attrs/ directory are not cleaned up. As a result, DAMON sysfs interface is nearly broken until the system reboots, and the memory for the unremoved directory is leaked. Cleanup the directories under such failures.

CVSS metrics

3 scores · 3 sources · 1 version

EPSS trend

Probability

0.14%

Chance of exploitation in the next 30 days

Percentile

4%

Versus all other CVEs

30-day change

Increase +0.01 pp

From 0.13% on 04-10-2026

04-10-202603-11-2026

Known exploited

Compare KEV catalogs
CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Version check

Known conditions: local access, low-privilege account, no user interaction (CVSS vector). Other conditions: not stated in public data.

Ubuntu130 products
  • linux< 6.8.0-117.117 | All versions (No fix recorded)
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-aws< 6.8.0-1055.58 | All versions (No fix recorded)
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Linux2 products
  • linux≥ c951cd3b89010c7a4751b9d4ea074007e44851e6, < db7dfe78fc81bdd2b532d77f340fe453f2360426 | ≥ c951cd3b89010c7a4751b9d4ea074007e44851e6, < 43964644348f6b1add3055c4a6cae8f77d892a6e | ≥ c951cd3b89010c7a4751b9d4ea074007e44851e6, < 5651c0c391c0029541794f9c4c9597faecfd401f | ≥ c951cd3b89010c7a4751b9d4ea074007e44851e6, < 78b4eb99751ebd37ceade78810bf94de80f7fb3a | ≥ c951cd3b89010c7a4751b9d4ea074007e44851e6, < 9814cc832b88bd040fc2a1817c2b5469d0f7e862 | 5.18
  • linux_kernel≥ 5.18, < 6.1.162 | ≥ 6.2, < 6.6.122 | ≥ 6.7, < 6.12.67 | ≥ 6.13, < 6.18.7 | 6.19:rc1 | 6.19:rc2 | 6.19:rc3 | 6.19:rc4 | 6.19:rc5
Debian1 product
  • linux< 6.1.162-1 | < 6.12.69-1 | < 6.18.8-1

3 vendors · 133 products

References

25 links
Show all 25 references