CVE-2026-80831

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-80831", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-08-26T14:34:25.796Z", "datePublished": "2026-09-04T15:54:36.250Z", "dateUpdated": "2026-10-19T08:44:23.654Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-10-19T08:44:23.654Z"}, "descriptions": [{"lang": "en", "value": "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."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/crypto/mxs-dcp.c"], "versions": [{"version": "15b59e7c3733f90ff1f7dd66ad77ae1c90bcdff5", "lessThan": "fd0f211b27a6ec2ebd8c315683401b43adcc5511", "status": "affected", "versionType": "git"}, {"version": "15b59e7c3733f90ff1f7dd66ad77ae1c90bcdff5", "lessThan": "04201dcc88b26eac52f736e39727fc5c420b7257", "status": "affected", "versionType": "git"}, {"version": "15b59e7c3733f90ff1f7dd66ad77ae1c90bcdff5", "lessThan": "e72a795df521cb65b7c4705cc11078cdacfaa2f4", "status": "affected", "versionType": "git"}, {"version": "15b59e7c3733f90ff1f7dd66ad77ae1c90bcdff5", "lessThan": "1537bd55b4f842565068c54b47cd2ae1777d5f8f", "status": "affected", "versionType": "git"}, {"version": "15b59e7c3733f90ff1f7dd66ad77ae1c90bcdff5", "lessThan": "da14fae5203b72ca71ccfa9af8de9249e40d533a", "status": "affected", "versionType": "git"}, {"version": "15b59e7c3733f90ff1f7dd66ad77ae1c90bcdff5", "lessThan": "182f16a20d329a1c818d51dad57d9bf43d356c7c", "status": "affected", "versionType": "git"}, {"version": "15b59e7c3733f90ff1f7dd66ad77ae1c90bcdff5", "lessThan": "0e9edb108a63bbbef952dfcbc597e34ed9c1fb74", "status": "affected", "versionType": "git"}, {"version": "15b59e7c3733f90ff1f7dd66ad77ae1c90bcdff5", "lessThan": "6ef9a4afb52cb102ab038cd42352c142d8505d09", "status": "affected", "versionType": "git"}, {"version": "15b59e7c3733f90ff1f7dd66ad77ae1c90bcdff5", "lessThan": "c5bcb084a9871e5b62afb5f48b60adfa13b5d9f8", "status": "affected", "versionType": "git"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/crypto/mxs-dcp.c"], "versions": [{"version": "3.14", "status": "affected"}, {"version": "0", "lessThan": "3.14", "status": "unaffected", "versionType": "semver"}, {"version": "5.10.269", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.15.220", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.1.187", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.156", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.108", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.49", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.1.13", "lessThanOrEqual": "7.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.2.3", "lessThanOrEqual": "7.2.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.3", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix"}]}], "cpeApplicability": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.14", "versionEndExcluding": "5.10.269"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.14", "versionEndExcluding": "5.15.220"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.14", "versionEndExcluding": "6.1.187"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.14", "versionEndExcluding": "6.6.156"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.14", "versionEndExcluding": "6.12.108"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.14", "versionEndExcluding": "6.18.49"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.14", "versionEndExcluding": "7.1.13"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.14", "versionEndExcluding": "7.2.3"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.14", "versionEndExcluding": "7.3"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/fd0f211b27a6ec2ebd8c315683401b43adcc5511"}, {"url": "https://git.kernel.org/stable/c/04201dcc88b26eac52f736e39727fc5c420b7257"}, {"url": "https://git.kernel.org/stable/c/e72a795df521cb65b7c4705cc11078cdacfaa2f4"}, {"url": "https://git.kernel.org/stable/c/1537bd55b4f842565068c54b47cd2ae1777d5f8f"}, {"url": "https://git.kernel.org/stable/c/da14fae5203b72ca71ccfa9af8de9249e40d533a"}, {"url": "https://git.kernel.org/stable/c/182f16a20d329a1c818d51dad57d9bf43d356c7c"}, {"url": "https://git.kernel.org/stable/c/0e9edb108a63bbbef952dfcbc597e34ed9c1fb74"}, {"url": "https://git.kernel.org/stable/c/6ef9a4afb52cb102ab038cd42352c142d8505d09"}, {"url": "https://git.kernel.org/stable/c/c5bcb084a9871e5b62afb5f48b60adfa13b5d9f8"}], "title": "crypto: mxs-dcp - fix source scatterlist length access", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["drivers/crypto/mxs-dcp.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "fd0f211b27a6ec2ebd8c315683401b43adcc5511", "status": "affected", "version": "15b59e7c3733f90ff1f7dd66ad77ae1c90bcdff5", "versionType": "git"}, {"lessThan": "04201dcc88b26eac52f736e39727fc5c420b7257", "status": "affected", "version": "15b59e7c3733f90ff1f7dd66ad77ae1c90bcdff5", "versionType": "git"}, {"lessThan": "e72a795df521cb65b7c4705cc11078cdacfaa2f4", "status": "affected", "version": "15b59e7c3733f90ff1f7dd66ad77ae1c90bcdff5", "versionType": "git"}, {"lessThan": "1537bd55b4f842565068c54b47cd2ae1777d5f8f", "status": "affected", "version": "15b59e7c3733f90ff1f7dd66ad77ae1c90bcdff5", "versionType": "git"}, {"lessThan": "da14fae5203b72ca71ccfa9af8de9249e40d533a", "status": "affected", "version": "15b59e7c3733f90ff1f7dd66ad77ae1c90bcdff5", "versionType": "git"}, {"lessThan": "182f16a20d329a1c818d51dad57d9bf43d356c7c", "status": "affected", "version": "15b59e7c3733f90ff1f7dd66ad77ae1c90bcdff5", "versionType": "git"}, {"lessThan": "0e9edb108a63bbbef952dfcbc597e34ed9c1fb74", "status": "affected", "version": "15b59e7c3733f90ff1f7dd66ad77ae1c90bcdff5", "versionType": "git"}, {"lessThan": "6ef9a4afb52cb102ab038cd42352c142d8505d09", "status": "affected", "version": "15b59e7c3733f90ff1f7dd66ad77ae1c90bcdff5", "versionType": "git"}, {"lessThan": "c5bcb084a9871e5b62afb5f48b60adfa13b5d9f8", "status": "affected", "version": "15b59e7c3733f90ff1f7dd66ad77ae1c90bcdff5", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["drivers/crypto/mxs-dcp.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "3.14"}, {"lessThan": "3.14", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "5.10.*", "status": "unaffected", "version": "5.10.269", "versionType": "semver"}, {"lessThanOrEqual": "5.15.*", "status": "unaffected", "version": "5.15.220", "versionType": "semver"}, {"lessThanOrEqual": "6.1.*", "status": "unaffected", "version": "6.1.187", "versionType": "semver"}, {"lessThanOrEqual": "6.6.*", "status": "unaffected", "version": "6.6.156", "versionType": "semver"}, {"lessThanOrEqual": "6.12.*", "status": "unaffected", "version": "6.12.108", "versionType": "semver"}, {"lessThanOrEqual": "6.18.*", "status": "unaffected", "version": "6.18.49", "versionType": "semver"}, {"lessThanOrEqual": "7.1.*", "status": "unaffected", "version": "7.1.13", "versionType": "semver"}, {"lessThanOrEqual": "7.2.*", "status": "unaffected", "version": "7.2.3", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "7.3", "versionType": "original_commit_for_fix"}]}], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "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."}], "id": "CVE-2026-80831", "lastModified": "2026-10-19T09:17:18.260", "metrics": {}, "published": "2026-09-04T16:18:11.287", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/04201dcc88b26eac52f736e39727fc5c420b7257"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/0e9edb108a63bbbef952dfcbc597e34ed9c1fb74"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/1537bd55b4f842565068c54b47cd2ae1777d5f8f"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/182f16a20d329a1c818d51dad57d9bf43d356c7c"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/6ef9a4afb52cb102ab038cd42352c142d8505d09"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/c5bcb084a9871e5b62afb5f48b60adfa13b5d9f8"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/da14fae5203b72ca71ccfa9af8de9249e40d533a"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/e72a795df521cb65b7c4705cc11078cdacfaa2f4"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/fd0f211b27a6ec2ebd8c315683401b43adcc5511"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[15b59e7c3733f90ff1f7dd66ad77ae1c90bcdff5,fd0f211b27a6ec2ebd8c315683401b43adcc5511)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[15b59e7c3733f90ff1f7dd66ad77ae1c90bcdff5,04201dcc88b26eac52f736e39727fc5c420b7257)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[15b59e7c3733f90ff1f7dd66ad77ae1c90bcdff5,e72a795df521cb65b7c4705cc11078cdacfaa2f4)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[15b59e7c3733f90ff1f7dd66ad77ae1c90bcdff5,1537bd55b4f842565068c54b47cd2ae1777d5f8f)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[15b59e7c3733f90ff1f7dd66ad77ae1c90bcdff5,da14fae5203b72ca71ccfa9af8de9249e40d533a)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[15b59e7c3733f90ff1f7dd66ad77ae1c90bcdff5,182f16a20d329a1c818d51dad57d9bf43d356c7c)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[15b59e7c3733f90ff1f7dd66ad77ae1c90bcdff5,0e9edb108a63bbbef952dfcbc597e34ed9c1fb74)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[15b59e7c3733f90ff1f7dd66ad77ae1c90bcdff5,6ef9a4afb52cb102ab038cd42352c142d8505d09)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[15b59e7c3733f90ff1f7dd66ad77ae1c90bcdff5,c5bcb084a9871e5b62afb5f48b60adfa13b5d9f8)"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "3.14"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[0,3.14)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[5.10.269,5.10.*]"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[5.15.220,5.15.*]"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[6.1.187,6.1.*]"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[6.6.156,6.6.*]"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[6.12.108,6.12.*]"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[6.18.49,6.18.*]"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[7.1.13,7.1.*]"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[7.2.3,7.2.*]"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[7.3-rc1,*]"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}], "created": "2026-09-04T19:00:14.678151+00:00", "updated": "2026-09-05T00:30:18.206655+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"], "weaknesses": ["CWE-665", "CWE-193"]}