{"id":"CVE-2026-23144","state":"PUBLISHED","title":"mm/damon/sysfs: cleanup attrs subdirs on context dir setup failure","description":"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 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.","publishedAt":"2026-02-14T15:36:09.518Z","updatedAt":"2026-10-19T18:25:33.137Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"c951cd3b89010c7a4751b9d4ea074007e44851e6","status":"affected","lessThan":"db7dfe78fc81bdd2b532d77f340fe453f2360426","versionType":"git"},{"version":"c951cd3b89010c7a4751b9d4ea074007e44851e6","status":"affected","lessThan":"43964644348f6b1add3055c4a6cae8f77d892a6e","versionType":"git"},{"version":"c951cd3b89010c7a4751b9d4ea074007e44851e6","status":"affected","lessThan":"5651c0c391c0029541794f9c4c9597faecfd401f","versionType":"git"},{"version":"c951cd3b89010c7a4751b9d4ea074007e44851e6","status":"affected","lessThan":"78b4eb99751ebd37ceade78810bf94de80f7fb3a","versionType":"git"},{"version":"c951cd3b89010c7a4751b9d4ea074007e44851e6","status":"affected","lessThan":"9814cc832b88bd040fc2a1817c2b5469d0f7e862","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["mm/damon/sysfs.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"5.18","status":"affected"},{"version":"0","status":"unaffected","lessThan":"5.18","versionType":"semver"},{"version":"6.1.162","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.122","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.67","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.7","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"6.19","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["mm/damon/sysfs.c"]}],"references":["https://git.kernel.org/stable/c/db7dfe78fc81bdd2b532d77f340fe453f2360426","https://git.kernel.org/stable/c/43964644348f6b1add3055c4a6cae8f77d892a6e","https://git.kernel.org/stable/c/5651c0c391c0029541794f9c4c9597faecfd401f","https://git.kernel.org/stable/c/78b4eb99751ebd37ceade78810bf94de80f7fb3a","https://git.kernel.org/stable/c/9814cc832b88bd040fc2a1817c2b5469d0f7e862"],"weaknesses":["CWE-401"],"ingestedAt":"2026-10-29T20:11:21.040Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/23xxx/CVE-2026-23144.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-23144","state":"PUBLISHED","datePublished":"2026-02-14T15:36:09.518Z","dateUpdated":"2026-10-19T18:25:33.137Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2026-01-13T15:37:45.974Z"},"containers":{"cna":{"title":"mm/damon/sysfs: cleanup attrs subdirs on context dir setup failure","descriptions":[{"lang":"en","value":"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 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."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"c951cd3b89010c7a4751b9d4ea074007e44851e6","status":"affected","lessThan":"db7dfe78fc81bdd2b532d77f340fe453f2360426","versionType":"git"},{"version":"c951cd3b89010c7a4751b9d4ea074007e44851e6","status":"affected","lessThan":"43964644348f6b1add3055c4a6cae8f77d892a6e","versionType":"git"},{"version":"c951cd3b89010c7a4751b9d4ea074007e44851e6","status":"affected","lessThan":"5651c0c391c0029541794f9c4c9597faecfd401f","versionType":"git"},{"version":"c951cd3b89010c7a4751b9d4ea074007e44851e6","status":"affected","lessThan":"78b4eb99751ebd37ceade78810bf94de80f7fb3a","versionType":"git"},{"version":"c951cd3b89010c7a4751b9d4ea074007e44851e6","status":"affected","lessThan":"9814cc832b88bd040fc2a1817c2b5469d0f7e862","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["mm/damon/sysfs.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"5.18","status":"affected"},{"version":"0","status":"unaffected","lessThan":"5.18","versionType":"semver"},{"version":"6.1.162","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.122","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.67","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.7","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"6.19","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["mm/damon/sysfs.c"]}],"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"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-05-11T22:00:59.074Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.18","versionEndExcluding":"6.1.162"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.18","versionEndExcluding":"6.6.122"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.18","versionEndExcluding":"6.12.67"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.18","versionEndExcluding":"6.18.7"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.18","versionEndExcluding":"6.19"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"id":"CVE-2026-23144","role":"CISA Coordinator","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"version":"2.0.3","timestamp":"2026-06-10T20:42:15.595572Z"}}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-401","lang":"en","type":"CWE","description":"CWE-401 Missing Release of Memory after Effective Lifetime"}]}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-10-19T18:25:33.137Z"}}]}}}