{"cve":"CVE-2026-89534","nvd":{"published":"2026-09-11T20:19:36.390","modified":"2026-10-21T13:20:07.507","status":"Received","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nsvcrdma: Clear sc_cm_id when ADDR_CHANGE replacement fails\n\nWhen svc_rdma_listen_handler() handles RDMA_CM_EVENT_ADDR_CHANGE,\nit creates a replacement listener cm_id and returns 1, telling\nthe CM core to destroy the old one. If the replacement allocation\nfails, sc_cm_id still points at the old cm_id that the CM core is\nabout to destroy. Any subsequent dereference of sc_cm_id --\nsuch as svc_rdma_detach()'s rdma_disconnect() call -- is a\nuse-after-free.\n\nNULL sc_cm_id on the failure path and guard svc_rdma_detach()'s\nrdma_disconnect() call against NULL so that the listener can\nbe torn down safely when the server shuts down.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","score":8.8},"cwes":[],"references":["https://git.kernel.org/stable/c/01500306e1d50de7ca7a2cdcdfa28ac0523eb747","https://git.kernel.org/stable/c/2a68aeb2de8ad0fef9c50e73a50622a35c6af1a8","https://git.kernel.org/stable/c/65f0f82f20334e76acaf29087a59af7b3b9699ed","https://git.kernel.org/stable/c/673e358ab7c11f8cec223c6a36a793056a67facd"],"products":[],"source":"nvd","synced_at":"2026-10-22T16:41:11.231219466+00:00"},"epss":{"cve":"CVE-2026-89534","score":0.00239,"percentile":0.14772,"date":"2026-10-25"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}