CVE-2026-23144 PUBLISHED

mm/damon/sysfs: cleanup attrs subdirs on context dir setup failure

Assigner: Linux
Reserved: 13.01.2026 Published: 14.02.2026 Updated: 14.02.2026

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.

Product Status

Vendor Linux
Product Linux
Versions Default: unaffected
  • affected from c951cd3b89010c7a4751b9d4ea074007e44851e6 to db7dfe78fc81bdd2b532d77f340fe453f2360426 (excl.)
  • affected from c951cd3b89010c7a4751b9d4ea074007e44851e6 to 43964644348f6b1add3055c4a6cae8f77d892a6e (excl.)
  • affected from c951cd3b89010c7a4751b9d4ea074007e44851e6 to 5651c0c391c0029541794f9c4c9597faecfd401f (excl.)
  • affected from c951cd3b89010c7a4751b9d4ea074007e44851e6 to 78b4eb99751ebd37ceade78810bf94de80f7fb3a (excl.)
  • affected from c951cd3b89010c7a4751b9d4ea074007e44851e6 to 9814cc832b88bd040fc2a1817c2b5469d0f7e862 (excl.)
Vendor Linux
Product Linux
Versions Default: affected
  • Version 5.18 is affected
  • unaffected from 0 to 5.18 (excl.)
  • unaffected from 6.1.162 to 6.1.* (incl.)
  • unaffected from 6.6.122 to 6.6.* (incl.)
  • unaffected from 6.12.67 to 6.12.* (incl.)
  • unaffected from 6.18.7 to 6.18.* (incl.)
  • unaffected from 6.19 to * (incl.)

References