{"id":"CVE-2026-98257","revision":"f6b6df8e60ff4e799834f8c2556e6221","records":[{"revision":"f6b6df8e60ff4e799834f8c2556e6221","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-98257","aliases":[],"title":"rds: ib: use rds_conn_drop() on protocol version mismatch","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nrds: ib: use rds_conn_drop() on protocol version mismatch\n\nrds_ib_cm_connect_complete() runs from the RDMA-CM event handler with\nconn->c_cm_lock held.  When the peer negotiates a protocol version\nolder than RDS_PROTOCOL_COMPAT_VERSION, the handler calls\nrds_conn_destroy(), which is only safe in the rmmod path: it\nsynchronously tears the connection down and flush_work()es the\nshutdown work cp_down_w.\n\nThat shutdown work (rds_conn_shutdown()) needs cp_cm_lock, which is\nthe very lock the event handler still holds, so the flush never\ncompletes: the two workers wait on each other and the RDS connection\nworkqueues stall for good.\n\nAll other RDMA-CM failure paths (REJECTED, CONNECT_ERROR,\nDISCONNECTED) use rds_conn_drop(), which marks the connection\nRDS_CONN_ERROR and schedules the shutdown work asynchronously.  Use\nit here as well.","state":0,"publishedAt":"2026-10-06T08:45:22.722+00:00","modifiedAt":"2026-10-19T09:16:28.47+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/rds/ib_cm.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"f147dd9ecabf23fd63d2562ffe64252a0453ecde\",\n                            \"lessThan\": \"424019be3f637da76b74f44a40034669acbb166f\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"f147dd9ecabf23fd63d2562ffe64252a0453ecde\",\n                            \"lessThan\": \"14fb90067d13f4494cff0f03243fae3cf2911cbc\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"f147dd9ecabf23fd63d2562ffe64252a0453ecde\",\n                            \"lessThan\": \"344c72a0bc2703a6de4918ed935850e07dae3af2\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"f147dd9ecabf23fd63d2562ffe64252a0453ecde\",\n                            \"lessThan\": \"b5c9f2951d330d4a198a64d6e60f79b4bd6ef078\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"f147dd9ecabf23fd63d2562ffe64252a0453ecde\",\n                            \"lessThan\": \"d392b16acd0908f077289aad8bba066ff16de336\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"f147dd9ecabf23fd63d2562ffe64252a0453ecde\",\n                            \"lessThan\": \"65ca0a5037152a5a80b8fe6aac80eb80458be573\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"f147dd9ecabf23fd63d2562ffe64252a0453ecde\",\n                            \"lessThan\": \"7d8c22cb2cb1efb5e830a4545c76abf7b35cc2e8\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"f147dd9ecabf23fd63d2562ffe64252a0453ecde\",\n                            \"lessThan\": \"f97d8c7bab7843631206a114986c9059da03efeb\",\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/rds/ib_cm.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"2.6.37\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \"0\",\n                            \"lessThan\": \"2.6.37\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"5.10.271\",\n                            \"lessThanOrEqual\": \"5.10.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"5.15.222\",\n                            \"lessThanOrEqual\": \"5.15.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.1.189\",\n                            \"lessThanOrEqual\": \"6.1.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.6.158\",\n                            \"lessThanOrEqual\": \"6.6.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.12.112\",\n                            \"lessThanOrEqual\": \"6.12.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.18.54\",\n                            \"lessThanOrEqual\": \"6.18.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"7.2.8\",\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:L/PR:N/UI:N/S:U/C:N/I:N/A:H","score":7.5,"severity":"HIGH"}],"references":["https://git.kernel.org/stable/c/424019be3f637da76b74f44a40034669acbb166f","https://git.kernel.org/stable/c/14fb90067d13f4494cff0f03243fae3cf2911cbc","https://git.kernel.org/stable/c/344c72a0bc2703a6de4918ed935850e07dae3af2","https://git.kernel.org/stable/c/b5c9f2951d330d4a198a64d6e60f79b4bd6ef078","https://git.kernel.org/stable/c/d392b16acd0908f077289aad8bba066ff16de336","https://git.kernel.org/stable/c/65ca0a5037152a5a80b8fe6aac80eb80458be573","https://git.kernel.org/stable/c/7d8c22cb2cb1efb5e830a4545c76abf7b35cc2e8","https://git.kernel.org/stable/c/f97d8c7bab7843631206a114986c9059da03efeb"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-98257","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-98257","identifiers":["CVE-2026-98257"]},"retained":false,"historicalAffected":[]}],"coverage":[]}