Answer in brief
CVE-2026-80831 records a Unknown severity vulnerability in crypto: mxs-dcp - fix source scatterlist length access. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
A CVSS score is not reported in the current record. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=15b59e7c3733f90ff1f7dd66ad77ae1c90bcdff5 <fd0f211b27a6ec2ebd8c315683401b43adcc5511 || >=15b59e7c3733f90ff1f7dd66ad77ae1c90bcdff5 <04201dcc88b26eac52f736e39727fc5c420b7257 || >=15b59e7c3733f90ff1f7dd66ad77ae1c90bcdff5 <e72a795df521cb65b7c4705cc11078cdacfaa2f4 || >=15b59e7c3733f90ff1f7dd66ad77ae1c90bcdff5 <1537bd55b4f842565068c54b47cd2ae1777d5f8f || >=15b59e7c3733f90ff1f7dd66ad77ae1c90bcdff5 <da14fae5203b72ca71ccfa9af8de9249e40d533a || >=15b59e7c3733f90ff1f7dd66ad77ae1c90bcdff5 <182f16a20d329a1c818d51dad57d9bf43d356c7c || >=15b59e7c3733f90ff1f7dd66ad77ae1c90bcdff5 <0e9edb108a63bbbef952dfcbc597e34ed9c1fb74 || >=15b59e7c3733f90ff1f7dd66ad77ae1c90bcdff5 <6ef9a4afb52cb102ab038cd42352c142d8505d09 || >=15b59e7c3733f90ff1f7dd66ad77ae1c90bcdff5 <c5bcb084a9871e5b62afb5f48b60adfa13b5d9f8 | fd0f211b27a6ec2ebd8c315683401b43adcc5511, 04201dcc88b26eac52f736e39727fc5c420b7257, e72a795df521cb65b7c4705cc11078cdacfaa2f4, 1537bd55b4f842565068c54b47cd2ae1777d5f8f, da14fae5203b72ca71ccfa9af8de9249e40d533a, 182f16a20d329a1c818d51dad57d9bf43d356c7c, 0e9edb108a63bbbef952dfcbc597e34ed9c1fb74, 6ef9a4afb52cb102ab038cd42352c142d8505d09, c5bcb084a9871e5b62afb5f48b60adfa13b5d9f8 |
| Linux/Linuxgeneric | 3.14 | Not reported |
Published upstream
Sep 4, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Sep 4, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Sep 4, 2026
In the Linux kernel, the following vulnerability has been resolved: crypto: mxs-dcp - fix source scatterlist length access mxs_dcp_aes_block_crypt() uses sg_dma_len() without mapping the source scatterlist with dma_map_sg() first. Therefore, sg_dma_len() is invalid and could return zero or a stale DMA length, causing encryption and decryption to process the wrong number of bytes when CONFIG_NEED_SG_DMA_LENGTH=y. Use the original scatterlist length instead.
Quoted source text, attributed separately from HOL analysis.