{"id":"CVE-2026-98071","revision":"95b33f52ecb140fb804f780d0881e8c8","records":[{"revision":"95b33f52ecb140fb804f780d0881e8c8","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-98071","aliases":[],"title":"net/rds: clear cp_flags bits individually in rds_conn_path_reset()","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nnet/rds: clear cp_flags bits individually in rds_conn_path_reset()\n\nrds_conn_path_reset() wipes the whole flag word with a plain\ncp->cp_flags = 0 store.  Every other accessor of that word uses\natomic bitops, and some of them can run concurrently with the reset:\nRDS_LL_SEND_FULL is set from rds_send_xmit() and cleared from the\ntransport completion paths, neither of which holds anything that\nexcludes the shutdown worker.  A plain store racing an atomic\nread-modify-write on the same word is a data race, and whichever\nside loses has its update silently discarded.\n\nClear the two bits the reset is actually responsible for instead.\nRDS_IN_XMIT and RDS_RECV_REFILL need no store at all here: they\nbelong to the caller, rds_conn_shutdown(), which waits for both to be\nclear before calling the transport shutdown and this reset.\n\nThis also gives every bit in cp_flags a single well-defined writer\ndiscipline, which the following patches rely on when they turn\nRDS_IN_XMIT and RDS_RECV_REFILL into bit locks held across the\nteardown: a blanket store mid-teardown would destroy lock ownership\nthat an atomic clear preserves.\n\nOracle UEK carries the same conversion (\"net/rds: Preserve essential\nconnection state flags\"), motivated by its asynchronous shutdown\nstate machine, whose progress and destroy flags must survive the\nreset.  UEK's variant also clears RDS_IN_XMIT and RDS_RECV_REFILL\nbecause there the reset runs as the final step of a teardown that\nowns both bits, making those clears its unlock.  Upstream that\nrelease belongs in rds_conn_shutdown(): once a later patch in this\nseries turns the two bits into locks held across the teardown, ending\nownership needs release semantics and a wake-up that a plain clear\ninside the reset would not provide.\n\nBased on Oracle UEK commit \"net/rds: Preserve essential connection\nstate flags\" by Gerd Rausch.","state":0,"publishedAt":"2026-09-25T10:24:12.085+00:00","modifiedAt":"2026-10-19T09:13:20.944+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/connection.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"00e0f34c616603ba6500f41943cbf89eb4a8a5be\",\n                            \"lessThan\": \"c9a7c1eb0ad41dcf004a9e870e452cafedcd9172\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"00e0f34c616603ba6500f41943cbf89eb4a8a5be\",\n                            \"lessThan\": \"b767b48614c38687d717082860de7aa46f3b142c\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"00e0f34c616603ba6500f41943cbf89eb4a8a5be\",\n                            \"lessThan\": \"b7dc5da660eb5ffa7f7b4d33f2c74cb71c6edd6c\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"00e0f34c616603ba6500f41943cbf89eb4a8a5be\",\n                            \"lessThan\": \"b8a8b6d25e7426a638c60eaba2129c0664131e84\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"00e0f34c616603ba6500f41943cbf89eb4a8a5be\",\n                            \"lessThan\": \"ed3ee0ac4aafda50c2f4381eb973beefeb7879ac\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"00e0f34c616603ba6500f41943cbf89eb4a8a5be\",\n                            \"lessThan\": \"6b8d7563c28b8112e6e54abe413b028ef3f8c549\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"00e0f34c616603ba6500f41943cbf89eb4a8a5be\",\n                            \"lessThan\": \"cb62aa8f04655a4df487913949719c0a1266ed73\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"00e0f34c616603ba6500f41943cbf89eb4a8a5be\",\n                            \"lessThan\": \"103c4b13c4f50322910078d1c02f29334a574122\",\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/connection.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"2.6.30\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \"0\",\n                            \"lessThan\": \"2.6.30\",\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\": \"6.12.111\",\n                            \"lessThanOrEqual\": \"6.12.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.18.53\",\n                            \"lessThanOrEqual\": \"6.18.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"7.2.7\",\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/c9a7c1eb0ad41dcf004a9e870e452cafedcd9172","https://git.kernel.org/stable/c/b767b48614c38687d717082860de7aa46f3b142c","https://git.kernel.org/stable/c/b7dc5da660eb5ffa7f7b4d33f2c74cb71c6edd6c","https://git.kernel.org/stable/c/b8a8b6d25e7426a638c60eaba2129c0664131e84","https://git.kernel.org/stable/c/ed3ee0ac4aafda50c2f4381eb973beefeb7879ac","https://git.kernel.org/stable/c/6b8d7563c28b8112e6e54abe413b028ef3f8c549","https://git.kernel.org/stable/c/cb62aa8f04655a4df487913949719c0a1266ed73","https://git.kernel.org/stable/c/103c4b13c4f50322910078d1c02f29334a574122"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-98071","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-98071","identifiers":["CVE-2026-98071"]},"retained":false,"historicalAffected":[]}],"coverage":[]}