{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "ed754e5deeb17f4e675c84e4b6c640cc7344e498"
            },
            {
              "fixed": "d663944dbad81bb0e3635d7090db4713e6300858"
            },
            {
              "fixed": "76023560d60f10b4f808941163aa2975f1631683"
            },
            {
              "fixed": "ef248d5de4469fb6bbaf8dbe0c4c47800080d648"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "4.15.0"
            },
            {
              "fixed": "6.18.51"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.19.0"
            },
            {
              "fixed": "7.2.5"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/89xxx/CVE-2026-89972.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nnvme: add missing SRCU grace period in error path\n\nnvme_alloc_ns() error path at out_unlink_ns removes ns from the\nnamespace head siblings list with list_del_rcu(\u0026ns-\u003esiblings) but\ndoes not wait for SRCU readers before freeing the namespace struct.\nMultipath code iterates the head-\u003elist under srcu_read_lock() in\nnvme_find_path() and nvme_mpath_revalidate_paths(), so a concurrent\nreader can still hold a reference to ns when kfree(ns) runs.\n\nThe normal removal path in nvme_ns_remove() correctly calls\nsynchronize_srcu(\u0026ns-\u003ehead-\u003esrcu) after list_del_rcu() to wait for\nin-progress readers. Add the same grace period in the error path.",
  "id": "CVE-2026-89972",
  "modified": "2026-09-18T03:30:20.677790279Z",
  "published": "2026-09-16T10:32:51.701Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/76023560d60f10b4f808941163aa2975f1631683"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/d663944dbad81bb0e3635d7090db4713e6300858"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/ef248d5de4469fb6bbaf8dbe0c4c47800080d648"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/89xxx/CVE-2026-89972.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-89972"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.9.0",
  "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": "nvme: add missing SRCU grace period in error path"
}