{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "f0c5118ebb0eb7e4fd6f0d2ace3315ca141b317f"
            },
            {
              "fixed": "e9de9f3ce06b133a348006668bc8d25c6e504867"
            },
            {
              "fixed": "f76f0a964bc3d7b7e253b43c669c41356bc54e71"
            },
            {
              "fixed": "7fe000eb32904758a85e62f6ea9483f89d5dabfc"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        },
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "last_affected": "5b3609d9b9650bdea0bfdf643e0ce57e1aed67fc"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        },
        {
          "events": [
            {
              "introduced": "6.17.6"
            },
            {
              "fixed": "6.18"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "6.18.0"
            },
            {
              "fixed": "6.18.21"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.19.0"
            },
            {
              "fixed": "6.19.11"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/31xxx/CVE-2026-31459.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nmm/damon/sysfs: fix param_ctx leak on damon_sysfs_new_test_ctx() failure\n\nPatch series \"mm/damon/sysfs: fix memory leak and NULL dereference\nissues\", v4.\n\nDAMON_SYSFS can leak memory under allocation failure, and do NULL pointer\ndereference when a privileged user make wrong sequences of control.  Fix\nthose.\n\n\nThis patch (of 3):\n\nWhen damon_sysfs_new_test_ctx() fails in damon_sysfs_commit_input(),\nparam_ctx is leaked because the early return skips the cleanup at the out\nlabel.  Destroy param_ctx before returning.",
  "id": "CVE-2026-31459",
  "modified": "2026-07-15T01:48:51.697737406Z",
  "published": "2026-04-22T13:53:51.554Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/7fe000eb32904758a85e62f6ea9483f89d5dabfc"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/e9de9f3ce06b133a348006668bc8d25c6e504867"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/f76f0a964bc3d7b7e253b43c669c41356bc54e71"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/31xxx/CVE-2026-31459.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-31459"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.8.0",
  "summary": "mm/damon/sysfs: fix param_ctx leak on damon_sysfs_new_test_ctx() failure"
}