{"id":"CVE-2026-23144","title":"mm/damon/sysfs: cleanup attrs subdirs on context dir setup failure","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\nmm/damon/sysfs: cleanup attrs subdirs on context dir setup failure\n\nWhen a context DAMON sysfs directory setup is failed after setup of attrs/\ndirectory, subdirectories…","severity":"none","vendor":"Linux","product":"Linux","affected":["Linux >= c951cd3b89010c7a4751b9d4ea074007e44851e6 < db7dfe78fc81bdd2b532d77f340fe453f2360426","Linux >= c951cd3b89010c7a4751b9d4ea074007e44851e6 < 43964644348f6b1add3055c4a6cae8f77d892a6e","Linux >= c951cd3b89010c7a4751b9d4ea074007e44851e6 < 5651c0c391c0029541794f9c4c9597faecfd401f","Linux >= c951cd3b89010c7a4751b9d4ea074007e44851e6 < 78b4eb99751ebd37ceade78810bf94de80f7fb3a","Linux >= c951cd3b89010c7a4751b9d4ea074007e44851e6 < 9814cc832b88bd040fc2a1817c2b5469d0f7e862","Linux 5.18"],"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"partial","timestamp":"2026-06-10T20:42:15.595572Z"},"published":"2026-02-14","updated":"2026-10-19","sourceUpdated":"2026-10-19T18:25:33.137Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-23144","references":[{"url":"https://git.kernel.org/stable/c/db7dfe78fc81bdd2b532d77f340fe453f2360426"},{"url":"https://git.kernel.org/stable/c/43964644348f6b1add3055c4a6cae8f77d892a6e"},{"url":"https://git.kernel.org/stable/c/5651c0c391c0029541794f9c4c9597faecfd401f"},{"url":"https://git.kernel.org/stable/c/78b4eb99751ebd37ceade78810bf94de80f7fb3a"},{"url":"https://git.kernel.org/stable/c/9814cc832b88bd040fc2a1817c2b5469d0f7e862"}],"tags":["cve.org"],"epss":0.00143,"epssPercentile":0.03214,"ingestedAt":"2026-10-19T18:35:50.099Z","slug":"CVE-2026-23144","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\nmm/damon/sysfs: cleanup attrs subdirs on context dir setup failure\n\nWhen a context DAMON sysfs directory setup is failed after setup of attrs/\ndirectory, subdirectories of attrs/ directory are not cleaned up.  As a\nresult, DAMON sysfs interface is nearly broken until the system reboots,\nand the memory for the unremoved directory is leaked.\n\nCleanup the directories under such failures.\n\n## Affected\n\n- `Linux >= c951cd3b89010c7a4751b9d4ea074007e44851e6 < db7dfe78fc81bdd2b532d77f340fe453f2360426`\n- `Linux >= c951cd3b89010c7a4751b9d4ea074007e44851e6 < 43964644348f6b1add3055c4a6cae8f77d892a6e`\n- `Linux >= c951cd3b89010c7a4751b9d4ea074007e44851e6 < 5651c0c391c0029541794f9c4c9597faecfd401f`\n- `Linux >= c951cd3b89010c7a4751b9d4ea074007e44851e6 < 78b4eb99751ebd37ceade78810bf94de80f7fb3a`\n- `Linux >= c951cd3b89010c7a4751b9d4ea074007e44851e6 < 9814cc832b88bd040fc2a1817c2b5469d0f7e862`\n- `Linux 5.18`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":3,"depthScoreParts":{"impact":2.8,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}