{"id":"CVE-2026-31633","revision":"0e3b77277d084bb28ca55de98cd96036","records":[{"revision":"0e3b77277d084bb28ca55de98cd96036","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-31633","aliases":[],"title":"rxrpc: Fix integer overflow in rxgk_verify_response()","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nrxrpc: Fix integer overflow in rxgk_verify_response()\n\nIn rxgk_verify_response(), there's a potential integer overflow due to\nrounding up token_len before checking it, thereby allowing the length check to\nbe bypassed.\n\nFix this by checking the unrounded value against len too (len is limited as\nthe response must fit in a single UDP packet).","state":0,"publishedAt":"2026-04-24T14:44:48.621+00:00","modifiedAt":"2026-10-19T18:56:00.901+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/rxrpc/rxgk.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"9d1d2b59341f58126a69b51f9f5f8ccb9f12e54a\",\n                            \"lessThan\": \"1f864d9daaf622aeaa774404fd51e7d6a435b046\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"9d1d2b59341f58126a69b51f9f5f8ccb9f12e54a\",\n                            \"lessThan\": \"c1e242beb6b1efc3c286f617e8d940c8fbf2ed41\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"9d1d2b59341f58126a69b51f9f5f8ccb9f12e54a\",\n                            \"lessThan\": \"699e52180f4231c257821c037ed5c99d5eb0edb8\",\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/rxrpc/rxgk.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"6.16\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \"0\",\n                            \"lessThan\": \"6.16\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.18.23\",\n                            \"lessThanOrEqual\": \"6.18.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.19.13\",\n                            \"lessThanOrEqual\": \"6.19.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"7.0\",\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:H/I:H/A:H","score":9.8,"severity":"CRITICAL"}],"references":["https://git.kernel.org/stable/c/1f864d9daaf622aeaa774404fd51e7d6a435b046","https://git.kernel.org/stable/c/c1e242beb6b1efc3c286f617e8d940c8fbf2ed41","https://git.kernel.org/stable/c/699e52180f4231c257821c037ed5c99d5eb0edb8"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-31633","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-31633","identifiers":["CVE-2026-31633"]},"retained":false,"historicalAffected":[]}],"coverage":[]}