{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "c4de97f7c45434985e5dbf2d6ccc9eca676e37fe"
            },
            {
              "fixed": "9f2f5d0999364c7070306cd422d8babc2621070d"
            },
            {
              "fixed": "cfca6eb3345ba4a23cf9a1153ad09bf19faabfc9"
            },
            {
              "fixed": "4488e912973773d64368828acf3b8e39d93650ae"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "6.12.0"
            },
            {
              "fixed": "6.18.51"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.19.0"
            },
            {
              "fixed": "7.2.4"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/89xxx/CVE-2026-89535.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nsvcrdma: Reorder rpcrdma_rn_unregister before rdma_destroy_id\n\nsvc_rdma_free() caches rdma-\u003esc_cm_id-\u003edevice before teardown,\nthen calls rdma_destroy_id(sc_cm_id) which frees the cm_id.\nrpcrdma_rn_unregister() follows, but between those two calls\nthe transport's sc_rn entry is still installed in the device's\nrd_xa. A concurrent ib_unregister_device walk can dispatch\nsvc_rdma_xprt_done() against the now-freed sc_cm_id.\n\nMove rpcrdma_rn_unregister() before rdma_destroy_id() so the\ntransport's notification entry is removed from the xarray before\nthe cm_id it references is destroyed.\n\nAlso guard the sc_cm_id dereference with a NULL check: the\nfollowing patches introduce paths that reach svc_rdma_free()\nwith sc_cm_id == NULL (listener create failure, ADDR_CHANGE\nreplacement failure).",
  "id": "CVE-2026-89535",
  "modified": "2026-09-15T03:30:55.195834113Z",
  "published": "2026-09-11T19:44:13.733Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/4488e912973773d64368828acf3b8e39d93650ae"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/9f2f5d0999364c7070306cd422d8babc2621070d"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/cfca6eb3345ba4a23cf9a1153ad09bf19faabfc9"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/89xxx/CVE-2026-89535.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-89535"
    },
    {
      "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:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "svcrdma: Reorder rpcrdma_rn_unregister before rdma_destroy_id"
}