{"id":"CVE-2025-40129","revision":"e361b5a4d00f44968e0a55d0bb4e280c","records":[{"revision":"e361b5a4d00f44968e0a55d0bb4e280c","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2025-40129","aliases":[],"title":"sunrpc: fix null pointer dereference on zero-length checksum","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nsunrpc: fix null pointer dereference on zero-length checksum\n\nIn xdr_stream_decode_opaque_auth(), zero-length checksum.len causes\nchecksum.data to be set to NULL. This triggers a NPD when accessing\nchecksum.data in gss_krb5_verify_mic_v2(). This patch ensures that\nthe value of checksum.len is not less than XDR_UNIT.","state":0,"publishedAt":"2025-11-12T10:23:21.327+00:00","modifiedAt":"2026-10-15T22:02:38.502+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/sunrpc/auth_gss/svcauth_gss.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"0653028e8f1c97fec30710813a001ad8a2ec34f4\",\n                            \"lessThan\": \"81cec07d303186d0d8c623ef8b5ecd3b81e94cf6\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"0653028e8f1c97fec30710813a001ad8a2ec34f4\",\n                            \"lessThan\": \"affc03d44921f493deaae1d33151e3067a6f9f8f\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"0653028e8f1c97fec30710813a001ad8a2ec34f4\",\n                            \"lessThan\": \"ab9a70cd2386a0d70c164b0905dd66bc9af52e77\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"0653028e8f1c97fec30710813a001ad8a2ec34f4\",\n                            \"lessThan\": \"6df164e29bd4e6505c5a2e0e5f1e1f6957a16a42\",\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/sunrpc/auth_gss/svcauth_gss.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"6.3\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \"0\",\n                            \"lessThan\": \"6.3\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.6.112\",\n                            \"lessThanOrEqual\": \"6.6.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.12.53\",\n                            \"lessThanOrEqual\": \"6.12.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.17.3\",\n                            \"lessThanOrEqual\": \"6.17.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.18\",\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:N/I:N/A:H","score":7.5,"severity":"HIGH"}],"references":["https://git.kernel.org/stable/c/81cec07d303186d0d8c623ef8b5ecd3b81e94cf6","https://git.kernel.org/stable/c/affc03d44921f493deaae1d33151e3067a6f9f8f","https://git.kernel.org/stable/c/ab9a70cd2386a0d70c164b0905dd66bc9af52e77","https://git.kernel.org/stable/c/6df164e29bd4e6505c5a2e0e5f1e1f6957a16a42"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2025-40129","license":"CVE Program Terms of Use","key":"cve-program:CVE-2025-40129","identifiers":["CVE-2025-40129"]},"retained":false,"historicalAffected":[]}],"coverage":[]}