{"id":"CVE-2026-31631","revision":"11f3f84232b34a888cb2efd590103e34","records":[{"revision":"11f3f84232b34a888cb2efd590103e34","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-31631","aliases":[],"title":"rxrpc: Fix buffer overread in rxgk_do_verify_authenticator()","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nrxrpc: Fix buffer overread in rxgk_do_verify_authenticator()\n\nFix rxgk_do_verify_authenticator() to check the buffer size before checking\nthe nonce.","state":0,"publishedAt":"2026-04-24T14:44:47.305+00:00","modifiedAt":"2026-10-19T18:56:00.756+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\": \"794586789800b16dcbe235452494f4223ac80413\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"9d1d2b59341f58126a69b51f9f5f8ccb9f12e54a\",\n                            \"lessThan\": \"1c4422d8be81718ecb15d79aedff607323085201\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"9d1d2b59341f58126a69b51f9f5f8ccb9f12e54a\",\n                            \"lessThan\": \"f564af387c8c28238f8ebc13314c589d7ba8475d\",\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:L/I:N/A:H","score":8.2,"severity":"HIGH"}],"references":["https://git.kernel.org/stable/c/794586789800b16dcbe235452494f4223ac80413","https://git.kernel.org/stable/c/1c4422d8be81718ecb15d79aedff607323085201","https://git.kernel.org/stable/c/f564af387c8c28238f8ebc13314c589d7ba8475d"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-31631","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-31631","identifiers":["CVE-2026-31631"]},"retained":false,"historicalAffected":[]}],"coverage":[]}