{"id":"CVE-2026-89505","revision":"4328bee99d4d444a869b979d5f66e927","records":[{"revision":"4328bee99d4d444a869b979d5f66e927","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-89505","aliases":[],"title":"RDMA/uverbs: Guard legacy bundles without method_elm","description":"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.","state":0,"publishedAt":"2026-09-11T19:43:52.69+00:00","modifiedAt":"2026-10-19T08:47:56.727+00:00","affected":[{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"product\": \"Linux\",\n                    \"vendor\": \"Linux\",\n                    \"defaultStatus\": \"unaffected\",\n                    \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n                    \"programFiles\": [\n                        \"drivers/infiniband/core/ib_core_uverbs.c\",\n                        \"drivers/infiniband/core/uverbs_main.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"7122ff96068a03595bde2fbafaca82ca2ed8084e\",\n                            \"lessThan\": \"edae84e5461749ed9adf9fcf5c6e075381040ac3\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"7122ff96068a03595bde2fbafaca82ca2ed8084e\",\n                            \"lessThan\": \"60a42d510113f46de47e86a84bf5758597644487\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        }\n                    ]\n                }"},{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"product\": \"Linux\",\n                    \"vendor\": \"Linux\",\n                    \"defaultStatus\": \"affected\",\n                    \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n                    \"programFiles\": [\n                        \"drivers/infiniband/core/ib_core_uverbs.c\",\n                        \"drivers/infiniband/core/uverbs_main.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"7.1\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \"0\",\n                            \"lessThan\": \"7.1\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"7.2.4\",\n                            \"lessThanOrEqual\": \"7.2.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"7.3\",\n                            \"lessThanOrEqual\": \"*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"original_commit_for_fix\"\n                        }\n                    ]\n                }"}],"metrics":[],"references":["https://git.kernel.org/stable/c/edae84e5461749ed9adf9fcf5c6e075381040ac3","https://git.kernel.org/stable/c/60a42d510113f46de47e86a84bf5758597644487"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-89505","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-89505","identifiers":["CVE-2026-89505"]},"retained":false,"historicalAffected":[]}],"coverage":[]}