{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "49ea0c036ede81f126f1a9389d377999fdf5c5a1"
            },
            {
              "fixed": "459b59f7ed56511d6529311cb4e5e482ebfcfb8e"
            },
            {
              "fixed": "cd60992f09b7e83bfd3c76e3bb06b29f3e2fa0a8"
            },
            {
              "fixed": "c332d9e7dce234d8bef78271d003a68ee943b61b"
            },
            {
              "fixed": "f98e894ec029a752cf9c7f7834741bead0fb463d"
            },
            {
              "fixed": "479a7f90060e62bdd9bb4036ec0a70bf460f6d23"
            },
            {
              "fixed": "046425412529dbfca1433c8bef5641b271b4ab2a"
            },
            {
              "fixed": "ea41b5630fa3d9877ce9ed8832cf5575f742bfbb"
            },
            {
              "fixed": "fe5c16bb6252dea6025b748257ddc3b2665495b0"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        },
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "last_affected": "98fa991017981b52dcc4dc3924fc8e1e83e41bf4"
            },
            {
              "last_affected": "af92e4a595e006b498c44b617ea38f697eca3469"
            },
            {
              "last_affected": "9c0cec79e5c914662c2cf98b4a729c0fcc8c872e"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        },
        {
          "events": [
            {
              "introduced": "4.19.130"
            },
            {
              "fixed": "4.20"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        },
        {
          "events": [
            {
              "introduced": "5.4.49"
            },
            {
              "fixed": "5.5"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        },
        {
          "events": [
            {
              "introduced": "5.7.6"
            },
            {
              "fixed": "5.8"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "5.8.0"
            },
            {
              "fixed": "5.10.270"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "5.11.0"
            },
            {
              "fixed": "5.15.221"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "5.16.0"
            },
            {
              "fixed": "6.1.188"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.2.0"
            },
            {
              "fixed": "6.6.157"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.7.0"
            },
            {
              "fixed": "6.12.110"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.13.0"
            },
            {
              "fixed": "6.18.52"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.19.0"
            },
            {
              "fixed": "7.2.6"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/90xxx/CVE-2026-90219.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nRDMA/cxgb4: Free debugfs on registration failure\n\nc4iw_alloc() creates the per-device debugfs tree (dev-\u003edebugfs_root via\nsetup_debugfs()), but it is removed only in c4iw_remove(), not in\nc4iw_dealloc().  When RDMA device registration fails, the registration\nworker's err_dealloc_ctx path calls c4iw_dealloc() directly, bypassing\nc4iw_remove(), so the debugfs dentries leak and outlive the freed\nc4iw_dev.\n\nMove debugfs_remove_recursive() into c4iw_dealloc() so every path that\nfrees ctx-\u003edev also removes its debugfs tree.",
  "id": "CVE-2026-90219",
  "modified": "2026-09-19T03:31:02.708881870Z",
  "published": "2026-09-17T16:07:30.778Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/046425412529dbfca1433c8bef5641b271b4ab2a"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/459b59f7ed56511d6529311cb4e5e482ebfcfb8e"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/479a7f90060e62bdd9bb4036ec0a70bf460f6d23"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/c332d9e7dce234d8bef78271d003a68ee943b61b"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/cd60992f09b7e83bfd3c76e3bb06b29f3e2fa0a8"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/ea41b5630fa3d9877ce9ed8832cf5575f742bfbb"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/f98e894ec029a752cf9c7f7834741bead0fb463d"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/fe5c16bb6252dea6025b748257ddc3b2665495b0"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/90xxx/CVE-2026-90219.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-90219"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.9.0",
  "summary": "RDMA/cxgb4: Free debugfs on registration failure"
}