{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/infiniband/core/ib_core_uverbs.c",
            "drivers/infiniband/core/uverbs_main.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "edae84e5461749ed9adf9fcf5c6e075381040ac3",
              "status": "affected",
              "version": "7122ff96068a03595bde2fbafaca82ca2ed8084e",
              "versionType": "git"
            },
            {
              "lessThan": "60a42d510113f46de47e86a84bf5758597644487",
              "status": "affected",
              "version": "7122ff96068a03595bde2fbafaca82ca2ed8084e",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/infiniband/core/ib_core_uverbs.c",
            "drivers/infiniband/core/uverbs_main.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "7.1"
            },
            {
              "lessThan": "7.1",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.2.*",
              "status": "unaffected",
              "version": "7.2.4",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.3",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.2.4",
                  "versionStartIncluding": "7.1",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.3",
                  "versionStartIncluding": "7.1",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nRDMA/uverbs: Guard legacy bundles without method_elm\n\nThe legacy write() path dispatches through a uverbs_api_write_method, but\nthe uverbs_attr_bundle passed to provider code does not have an ioctl\nmethod element. If malformed provider input causes the common uverbs\nvalidation code to emit an error message, uverbs_get_handler_fn()\ndereferences the uninitialized method_elm pointer.\n\nInitialize method_elm explicitly for legacy bundles and make\nuverbs_get_handler_fn() return NULL when no ioctl method is present. The\nlegacy dispatcher continues to use its local write method, while the ioctl\npath continues to use the registered ioctl handler."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-10-19T08:47:56.727Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/edae84e5461749ed9adf9fcf5c6e075381040ac3"
        },
        {
          "url": "https://git.kernel.org/stable/c/60a42d510113f46de47e86a84bf5758597644487"
        }
      ],
      "title": "RDMA/uverbs: Guard legacy bundles without method_elm",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-89505",
    "datePublished": "2026-09-11T19:43:52.690Z",
    "dateReserved": "2026-09-11T19:38:34.716Z",
    "dateUpdated": "2026-10-19T08:47:56.727Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}