{"id":"CVE-2026-80831","revision":"bc35273ef06b42a7920643285ca803d2","records":[{"revision":"bc35273ef06b42a7920643285ca803d2","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-80831","aliases":[],"title":"crypto: mxs-dcp - fix source scatterlist length access","description":"In the Linux kernel, the following vulnerability has been resolved:\n\ncrypto: mxs-dcp - fix source scatterlist length access\n\nmxs_dcp_aes_block_crypt() uses sg_dma_len() without mapping the source\nscatterlist with dma_map_sg() first. Therefore, sg_dma_len() is invalid\nand could return zero or a stale DMA length, causing encryption and\ndecryption to process the wrong number of bytes when\nCONFIG_NEED_SG_DMA_LENGTH=y.\n\nUse the original scatterlist length instead.","state":0,"publishedAt":"2026-09-04T15:54:36.25+00:00","modifiedAt":"2026-10-19T08:44:23.654+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/crypto/mxs-dcp.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"15b59e7c3733f90ff1f7dd66ad77ae1c90bcdff5\",\n                            \"lessThan\": \"fd0f211b27a6ec2ebd8c315683401b43adcc5511\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"15b59e7c3733f90ff1f7dd66ad77ae1c90bcdff5\",\n                            \"lessThan\": \"04201dcc88b26eac52f736e39727fc5c420b7257\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"15b59e7c3733f90ff1f7dd66ad77ae1c90bcdff5\",\n                            \"lessThan\": \"e72a795df521cb65b7c4705cc11078cdacfaa2f4\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"15b59e7c3733f90ff1f7dd66ad77ae1c90bcdff5\",\n                            \"lessThan\": \"1537bd55b4f842565068c54b47cd2ae1777d5f8f\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"15b59e7c3733f90ff1f7dd66ad77ae1c90bcdff5\",\n                            \"lessThan\": \"da14fae5203b72ca71ccfa9af8de9249e40d533a\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"15b59e7c3733f90ff1f7dd66ad77ae1c90bcdff5\",\n                            \"lessThan\": \"182f16a20d329a1c818d51dad57d9bf43d356c7c\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"15b59e7c3733f90ff1f7dd66ad77ae1c90bcdff5\",\n                            \"lessThan\": \"0e9edb108a63bbbef952dfcbc597e34ed9c1fb74\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"15b59e7c3733f90ff1f7dd66ad77ae1c90bcdff5\",\n                            \"lessThan\": \"6ef9a4afb52cb102ab038cd42352c142d8505d09\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"15b59e7c3733f90ff1f7dd66ad77ae1c90bcdff5\",\n                            \"lessThan\": \"c5bcb084a9871e5b62afb5f48b60adfa13b5d9f8\",\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/crypto/mxs-dcp.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"3.14\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \"0\",\n                            \"lessThan\": \"3.14\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"5.10.269\",\n                            \"lessThanOrEqual\": \"5.10.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"5.15.220\",\n                            \"lessThanOrEqual\": \"5.15.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.1.187\",\n                            \"lessThanOrEqual\": \"6.1.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.6.156\",\n                            \"lessThanOrEqual\": \"6.6.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.12.108\",\n                            \"lessThanOrEqual\": \"6.12.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.18.49\",\n                            \"lessThanOrEqual\": \"6.18.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"7.1.13\",\n                            \"lessThanOrEqual\": \"7.1.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"7.2.3\",\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/fd0f211b27a6ec2ebd8c315683401b43adcc5511","https://git.kernel.org/stable/c/04201dcc88b26eac52f736e39727fc5c420b7257","https://git.kernel.org/stable/c/e72a795df521cb65b7c4705cc11078cdacfaa2f4","https://git.kernel.org/stable/c/1537bd55b4f842565068c54b47cd2ae1777d5f8f","https://git.kernel.org/stable/c/da14fae5203b72ca71ccfa9af8de9249e40d533a","https://git.kernel.org/stable/c/182f16a20d329a1c818d51dad57d9bf43d356c7c","https://git.kernel.org/stable/c/0e9edb108a63bbbef952dfcbc597e34ed9c1fb74","https://git.kernel.org/stable/c/6ef9a4afb52cb102ab038cd42352c142d8505d09","https://git.kernel.org/stable/c/c5bcb084a9871e5b62afb5f48b60adfa13b5d9f8"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-80831","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-80831","identifiers":["CVE-2026-80831"]},"retained":false,"historicalAffected":[]}],"coverage":[]}