CVE-2026-23142
Published: February 19, 2026Last modified: February 20, 2026
Description
In the Linux kernel, the following vulnerability has been resolved: mm/damon/sysfs-scheme: cleanup access_pattern subdirs on scheme dir setup failure When a DAMOS-scheme DAMON sysfs directory setup fails after setup of access_pattern/ directory, subdirectories of access_pattern/ 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.
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 5.5 |
| Attack Vector | LOCAL |
| Attack complexity | LOW |
| Privileges required | LOW |
| User interaction | NONE |
| Scope | UNCHANGED |
| Confidentiality | NONE |
| Integrity impact | NONE |
| Availability impact | HIGH |
| Vector | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
Status
| Product | Release | Package | Status |
|---|---|---|---|
| Alpaquita Linux | 23 LTS | linux-lts | Fixed (6.1.163-r0) |
| 25 LTS | linux-lts | Fixed (6.12.73-r0) | |
| Stream | linux-lts | Fixed (6.12.67-r0) |
References
- https://git.kernel.org/stable/c/16236b0b4a08fa3e326cf1373ef789dabdc2e30d
- https://git.kernel.org/stable/c/392b3d9d595f34877dd745b470c711e8ebcd225c
- https://git.kernel.org/stable/c/725d4fdaa01bd1161782081f419e1568cc7432e0
- https://git.kernel.org/stable/c/ae8ac0066b48ed957bdcab58f0d3543549c57a29
- https://git.kernel.org/stable/c/e9711bd0e64812c694a228cf58c9e6032decee54