{"id":"CVE-2026-98222","revision":"886a30c802014688bc74e43c81678521","records":[{"revision":"886a30c802014688bc74e43c81678521","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-98222","aliases":[],"title":"KEYS: encrypted: fix integer overflow of datablob_len","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nKEYS: encrypted: fix integer overflow of datablob_len\n\nencrypted_key_alloc() stores datablob_len in a u16. It is computed from\nmultiple string and payload lengths. If the result exceeds U16_MAX, the\nassignment truncates the allocation size. KASAN reports a 32760-byte\nslab-out-of-bounds write when __ekey_init() copies the master key\ndescription into the undersized buffer.\n\nThe total payload length stored in key->datalen is also a u16. Use\ncheck_add_overflow() to reject values that do not fit either destination,\nand use kzalloc_flex() for the flexible-array allocation.","state":0,"publishedAt":"2026-10-06T08:44:57.621+00:00","modifiedAt":"2026-10-19T09:15:54.199+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                        \"security/keys/encrypted-keys/encrypted.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"7e70cb4978507cf31d76b90e4cfb4c28cad87f0c\",\n                            \"lessThan\": \"1e720f63dbafc093a8f5d519f05b67724993edd4\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"7e70cb4978507cf31d76b90e4cfb4c28cad87f0c\",\n                            \"lessThan\": \"a1a98eca102b1cbbc37ff9eaa197ae4e6a3ea4b0\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"7e70cb4978507cf31d76b90e4cfb4c28cad87f0c\",\n                            \"lessThan\": \"cca38f2102a4cd35eda8d48950df4817b4b24757\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"7e70cb4978507cf31d76b90e4cfb4c28cad87f0c\",\n                            \"lessThan\": \"8697c431e297eb0d0ab13dda6bc172b48a34f05c\",\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                        \"security/keys/encrypted-keys/encrypted.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"2.6.38\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \"0\",\n                            \"lessThan\": \"2.6.38\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.12.112\",\n                            \"lessThanOrEqual\": \"6.12.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.18.54\",\n                            \"lessThanOrEqual\": \"6.18.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"7.2.8\",\n                            \"lessThanOrEqual\": \"7.2.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"7.3\",\n                            \"lessThanOrEqual\": \"*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"original_commit_for_fix\"\n                        }\n                    ]\n                }"}],"metrics":[],"references":["https://git.kernel.org/stable/c/1e720f63dbafc093a8f5d519f05b67724993edd4","https://git.kernel.org/stable/c/a1a98eca102b1cbbc37ff9eaa197ae4e6a3ea4b0","https://git.kernel.org/stable/c/cca38f2102a4cd35eda8d48950df4817b4b24757","https://git.kernel.org/stable/c/8697c431e297eb0d0ab13dda6bc172b48a34f05c"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-98222","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-98222","identifiers":["CVE-2026-98222"]},"retained":false,"historicalAffected":[]}],"coverage":[]}