{"id":"CVE-2026-89535","revision":"70ba48d6ba544cac849ef151084c32d5","records":[{"revision":"70ba48d6ba544cac849ef151084c32d5","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-89535","aliases":[],"title":"svcrdma: Reorder rpcrdma_rn_unregister before rdma_destroy_id","description":"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->sc_cm_id->device 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).","state":0,"publishedAt":"2026-09-11T19:44:13.733+00:00","modifiedAt":"2026-10-19T08:48:26.908+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                        \"net/sunrpc/xprtrdma/svc_rdma_transport.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"c4de97f7c45434985e5dbf2d6ccc9eca676e37fe\",\n                            \"lessThan\": \"fcd4a752ac840d39356f4d2a424d3aca4e39716b\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"c4de97f7c45434985e5dbf2d6ccc9eca676e37fe\",\n                            \"lessThan\": \"9f2f5d0999364c7070306cd422d8babc2621070d\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"c4de97f7c45434985e5dbf2d6ccc9eca676e37fe\",\n                            \"lessThan\": \"cfca6eb3345ba4a23cf9a1153ad09bf19faabfc9\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"c4de97f7c45434985e5dbf2d6ccc9eca676e37fe\",\n                            \"lessThan\": \"4488e912973773d64368828acf3b8e39d93650ae\",\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                        \"net/sunrpc/xprtrdma/svc_rdma_transport.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"6.12\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \"0\",\n                            \"lessThan\": \"6.12\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.12.111\",\n                            \"lessThanOrEqual\": \"6.12.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.18.51\",\n                            \"lessThanOrEqual\": \"6.18.*\",\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":[{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","score":8.1,"severity":"HIGH"}],"references":["https://git.kernel.org/stable/c/fcd4a752ac840d39356f4d2a424d3aca4e39716b","https://git.kernel.org/stable/c/9f2f5d0999364c7070306cd422d8babc2621070d","https://git.kernel.org/stable/c/cfca6eb3345ba4a23cf9a1153ad09bf19faabfc9","https://git.kernel.org/stable/c/4488e912973773d64368828acf3b8e39d93650ae"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-89535","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-89535","identifiers":["CVE-2026-89535"]},"retained":false,"historicalAffected":[]}],"coverage":[]}