{"id":"CVE-2026-68451","revision":"b35c59a2032e49deb34db84c4b585a18","records":[{"revision":"b35c59a2032e49deb34db84c4b585a18","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-68451","aliases":[],"title":"s390/zcrypt: Validate length for CCA ECC private key requests","description":"In the Linux kernel, the following vulnerability has been resolved:\n\ns390/zcrypt: Validate length for CCA ECC private key requests\n\ncca_ecc2protkey() derives the copy length for the CPRB parameter\nblock directly from the length field in the key token. Reject the\nrequest early if the token length exceeds the available space in the\nparameter block.","state":0,"publishedAt":"2026-08-13T13:59:53.674+00:00","modifiedAt":"2026-10-19T21:09:10.945+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/s390/crypto/zcrypt_ccamisc.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"fa6999e326fe7851ecbd572b8cb9be8e930ebf41\",\n                            \"lessThan\": \"7dc306ff7c4d951582adaae65e0aee9fb4968dbe\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"fa6999e326fe7851ecbd572b8cb9be8e930ebf41\",\n                            \"lessThan\": \"447a37a6bef11bfd3645069e380460b11386e2b9\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"fa6999e326fe7851ecbd572b8cb9be8e930ebf41\",\n                            \"lessThan\": \"f0831f13c42c1261d449dcee8a035e1c6cd9fcaa\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"fa6999e326fe7851ecbd572b8cb9be8e930ebf41\",\n                            \"lessThan\": \"dd25bd9b0f36849808bd7625dcc59dd4c1aeef3e\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"fa6999e326fe7851ecbd572b8cb9be8e930ebf41\",\n                            \"lessThan\": \"ecc3b8691c1935f9f3e4eb964ab11e40fdec17f5\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"fa6999e326fe7851ecbd572b8cb9be8e930ebf41\",\n                            \"lessThan\": \"013a4484f061a2b41f052e25c0015203287e63f1\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"fa6999e326fe7851ecbd572b8cb9be8e930ebf41\",\n                            \"lessThan\": \"8fa3e9435a13c335efb63fb4f4e77531a0031159\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"fa6999e326fe7851ecbd572b8cb9be8e930ebf41\",\n                            \"lessThan\": \"a9ae0f6dd45c3ccc1d69363f7aea8af179122730\",\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/s390/crypto/zcrypt_ccamisc.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"5.10\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \"0\",\n                            \"lessThan\": \"5.10\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"5.10.265\",\n                            \"lessThanOrEqual\": \"5.10.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"5.15.216\",\n                            \"lessThanOrEqual\": \"5.15.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.1.183\",\n                            \"lessThanOrEqual\": \"6.1.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.6.151\",\n                            \"lessThanOrEqual\": \"6.6.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.12.103\",\n                            \"lessThanOrEqual\": \"6.12.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.18.44\",\n                            \"lessThanOrEqual\": \"6.18.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"7.1.8\",\n                            \"lessThanOrEqual\": \"7.1.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"7.2\",\n                            \"lessThanOrEqual\": \"*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"original_commit_for_fix\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","score":7.8,"severity":"HIGH"}],"references":["https://git.kernel.org/stable/c/7dc306ff7c4d951582adaae65e0aee9fb4968dbe","https://git.kernel.org/stable/c/447a37a6bef11bfd3645069e380460b11386e2b9","https://git.kernel.org/stable/c/f0831f13c42c1261d449dcee8a035e1c6cd9fcaa","https://git.kernel.org/stable/c/dd25bd9b0f36849808bd7625dcc59dd4c1aeef3e","https://git.kernel.org/stable/c/ecc3b8691c1935f9f3e4eb964ab11e40fdec17f5","https://git.kernel.org/stable/c/013a4484f061a2b41f052e25c0015203287e63f1","https://git.kernel.org/stable/c/8fa3e9435a13c335efb63fb4f4e77531a0031159","https://git.kernel.org/stable/c/a9ae0f6dd45c3ccc1d69363f7aea8af179122730"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-68451","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-68451","identifiers":["CVE-2026-68451"]},"retained":false,"historicalAffected":[]}],"coverage":[]}