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

{
  "id": "34967da2f7f928077173151a42e0870eb28db1132b08860eeb05cf4678ed106f",
  "url": "https://osv.dev/vulnerability/CVE-2026-23144",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "mm/damon/sysfs: cleanup attrs subdirs on context dir setup failure",
    "summary": "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.",
    "evidence": "osv:CVE-2026-23144",
    "products": [
      {
        "name": {
          "value": "Kernel",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "6.1.162",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.6.122",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.12.67",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.18.7",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "unknown",
    "structured": {
      "id": "CVE-2026-23144",
      "aliases": [
        "CVE-2026-23144"
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "type": "GIT",
              "events": [
                {
                  "introduced": "c951cd3b89010c7a4751b9d4ea074007e44851e6"
                },
                {
                  "fixed": "db7dfe78fc81bdd2b532d77f340fe453f2360426"
                },
                {
                  "fixed": "43964644348f6b1add3055c4a6cae8f77d892a6e"
                },
                {
                  "fixed": "5651c0c391c0029541794f9c4c9597faecfd401f"
                },
                {
                  "fixed": "78b4eb99751ebd37ceade78810bf94de80f7fb3a"
                },
                {
                  "fixed": "9814cc832b88bd040fc2a1817c2b5469d0f7e862"
                }
              ]
            }
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-23144.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "5.18.0"
                },
                {
                  "fixed": "6.1.162"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.2.0"
                },
                {
                  "fixed": "6.6.122"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.7.0"
                },
                {
                  "fixed": "6.12.67"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.13.0"
                },
                {
                  "fixed": "6.18.7"
                }
              ]
            }
          ],
          "package": {
            "name": "Kernel",
            "ecosystem": "Linux"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-23144.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:52.566672246Z",
      "provider": "osv",
      "references": [
        "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",
        "https://git.kernel.org/stable/c/db7dfe78fc81bdd2b532d77f340fe453f2360426",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/23xxx/CVE-2026-23144.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-23144",
        "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
      ],
      "provider_metadata": {
        "cna_assigner": "Linux",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/23xxx/CVE-2026-23144.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-23144",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": null
  },
  "source_id": "core-osv",
  "document_id": 521432,
  "published_at": "2026-02-14T15:36:09.518+00:00"
}