{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "bab17b761c8974a869b04462be5d4dd9aad366b4"
            },
            {
              "fixed": "01e42aabaf7632beb4bf235c7238b96c746d4144"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        },
        {
          "events": [
            {
              "introduced": "ae4c81644e9105d9f7f713bb0d444737bb6a0cf1"
            },
            {
              "fixed": "548f3956e53a7f7bde912d8129010b8986d5e602"
            },
            {
              "fixed": "00904a73272b9f3ef3952fe69a833909dccad1ef"
            },
            {
              "fixed": "92060ab1c5115674cf319175550f85f68405121f"
            },
            {
              "fixed": "eae62c5451e67e8b033c1681fd3b85d7e9a9a28f"
            },
            {
              "fixed": "b0e9706fb2859064bb6c677554c4d20c713aa8e0"
            },
            {
              "fixed": "5b74373390113fba798a76b483837029ab010fef"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        },
        {
          "events": [
            {
              "introduced": "5.15.61"
            },
            {
              "fixed": "5.15.209"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "5.15.209"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "5.16.0"
            },
            {
              "fixed": "6.1.175"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "5.17.0"
            },
            {
              "fixed": "6.6.142"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.2.0"
            },
            {
              "fixed": "6.12.92"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.7.0"
            },
            {
              "fixed": "6.18.34"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.13.0"
            },
            {
              "fixed": "7.0.11"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/64xxx/CVE-2026-64033.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nRDMA/rtrs: Fix use-after-free in path file creation cleanup\n\nIn the error path of rtrs_srv_create_path_files(), the sysfs root folders\nmay already have been created and srv_path-\u003ekobj may already have been\ninitialized. If a later step fails, the cleanup currently calls\nkobject_put(\u0026srv_path-\u003ekobj) before\nrtrs_srv_destroy_once_sysfs_root_folders(srv_path).\n\nkobject_put() may drop the last reference to srv_path-\u003ekobj and invoke the\nrelease callback, rtrs_srv_release(), which frees srv_path. The following\ncall to rtrs_srv_destroy_once_sysfs_root_folders(srv_path) then\ndereferences srv_path internally to access srv_path-\u003esrv, resulting in a\nuse-after-free.\n\nThis failure path is reached before rtrs_srv_create_path_files() returns\nsuccess, so the successful-path lifetime handling is not involved.\n\nFix this by destroying the sysfs root folders before calling\nkobject_put(\u0026srv_path-\u003ekobj), so srv_path is still valid while the helper\naccesses it.\n\nThis issue was found by a static analysis tool I am developing.",
  "id": "CVE-2026-64033",
  "modified": "2026-07-22T05:29:55.160316266Z",
  "published": "2026-07-19T15:39:22.872Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/00904a73272b9f3ef3952fe69a833909dccad1ef"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/01e42aabaf7632beb4bf235c7238b96c746d4144"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/548f3956e53a7f7bde912d8129010b8986d5e602"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/5b74373390113fba798a76b483837029ab010fef"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/92060ab1c5115674cf319175550f85f68405121f"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/b0e9706fb2859064bb6c677554c4d20c713aa8e0"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/eae62c5451e67e8b033c1681fd3b85d7e9a9a28f"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/64xxx/CVE-2026-64033.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-64033"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.8.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "RDMA/rtrs: Fix use-after-free in path file creation cleanup"
}