{"id":"CVE-2026-23054","revision":"786064b8eb7541e28ddbaaf30f3c38d7","records":[{"revision":"786064b8eb7541e28ddbaaf30f3c38d7","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-23054","aliases":[],"title":"net: hv_netvsc: reject RSS hash key programming without RX indirection table","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nnet: hv_netvsc: reject RSS hash key programming without RX indirection table\n\nRSS configuration requires a valid RX indirection table. When the device\nreports a single receive queue, rndis_filter_device_add() does not\nallocate an indirection table, accepting RSS hash key updates in this\nstate leads to a hang.\n\nFix this by gating netvsc_set_rxfh() on ndc->rx_table_sz and return\n-EOPNOTSUPP when the table is absent. This aligns set_rxfh with the device\ncapabilities and prevents incorrect behavior.","state":0,"publishedAt":"2026-02-04T16:04:23.396+00:00","modifiedAt":"2026-10-15T01:12:44.784+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/net/hyperv/netvsc_drv.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"962f3fee83a4ef9010ae84dc43ae7aecb572e2a9\",\n                            \"lessThan\": \"8288136f508e78eb3563e7073975999cf225a2f9\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"962f3fee83a4ef9010ae84dc43ae7aecb572e2a9\",\n                            \"lessThan\": \"82c9039c8ebb715753a40434df714f865a3aec9c\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"962f3fee83a4ef9010ae84dc43ae7aecb572e2a9\",\n                            \"lessThan\": \"4cd55c609e85ae2313248ef1a33619a3eef44a16\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"962f3fee83a4ef9010ae84dc43ae7aecb572e2a9\",\n                            \"lessThan\": \"11dd9a9ef4dc4507a15a69b8511a0013c6c28fa3\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"962f3fee83a4ef9010ae84dc43ae7aecb572e2a9\",\n                            \"lessThan\": \"d23564955811da493f34412d7de60fa268c8cb50\",\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/net/hyperv/netvsc_drv.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"4.11\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \"0\",\n                            \"lessThan\": \"4.11\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.1.162\",\n                            \"lessThanOrEqual\": \"6.1.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.6.122\",\n                            \"lessThanOrEqual\": \"6.6.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.12.67\",\n                            \"lessThanOrEqual\": \"6.12.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.18.7\",\n                            \"lessThanOrEqual\": \"6.18.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.19\",\n                            \"lessThanOrEqual\": \"*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"original_commit_for_fix\"\n                        }\n                    ]\n                }"}],"metrics":[],"references":["https://git.kernel.org/stable/c/8288136f508e78eb3563e7073975999cf225a2f9","https://git.kernel.org/stable/c/82c9039c8ebb715753a40434df714f865a3aec9c","https://git.kernel.org/stable/c/4cd55c609e85ae2313248ef1a33619a3eef44a16","https://git.kernel.org/stable/c/11dd9a9ef4dc4507a15a69b8511a0013c6c28fa3","https://git.kernel.org/stable/c/d23564955811da493f34412d7de60fa268c8cb50"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-23054","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-23054","identifiers":["CVE-2026-23054"]},"retained":false,"historicalAffected":[]}],"coverage":[]}