{"id":"CVE-2026-31633","summary":"rxrpc: Fix integer overflow in rxgk_verify_response()","details":"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).","modified":"2026-07-15T01:48:58.915066911Z","published":"2026-04-24T14:44:48.621Z","database_specific":{"cna_assigner":"Linux","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/31xxx/CVE-2026-31633.json"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/1f864d9daaf622aeaa774404fd51e7d6a435b046"},{"type":"WEB","url":"https://git.kernel.org/stable/c/699e52180f4231c257821c037ed5c99d5eb0edb8"},{"type":"WEB","url":"https://git.kernel.org/stable/c/c1e242beb6b1efc3c286f617e8d940c8fbf2ed41"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/31xxx/CVE-2026-31633.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-31633"},{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"9d1d2b59341f58126a69b51f9f5f8ccb9f12e54a"},{"fixed":"1f864d9daaf622aeaa774404fd51e7d6a435b046"},{"fixed":"c1e242beb6b1efc3c286f617e8d940c8fbf2ed41"},{"fixed":"699e52180f4231c257821c037ed5c99d5eb0edb8"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-31633.json"}},{"package":{"name":"Kernel","ecosystem":"Linux"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"6.16.0"},{"fixed":"6.18.23"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.19.0"},{"fixed":"6.19.13"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-31633.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"}]}