CVE-2026-80831
Unknown
Description
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.
SeverityUnknown
CVSS—
Exploit probability—
Product
Linux
PublishedSep 4, 2026
First seenSep 4, 2026
How to fix
Update
- Linux Linuxfd0f211b27a6ec2ebd8c315683401b43adcc5511, 04201dcc88b26eac52f736e39727fc5c420b7257, e72a795df521cb65b7c4705cc11078cdacfaa2f4, 1537bd55b4f842565068c54b47cd2ae1777d5f8f, da14fae5203b72ca71ccfa9af8de9249e40d533a, 182f16a20d329a1c818d51dad57d9bf43d356c7c, 0e9edb108a63bbbef952dfcbc597e34ed9c1fb74, 6ef9a4afb52cb102ab038cd42352c142d8505d09, c5bcb084a9871e5b62afb5f48b60adfa13b5d9f8 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| Linux Linux | 15b59e7c3733f90ff1f7dd66ad77ae1c90bcdff5 ≤ v < fd0f211b27a6ec2ebd8c315683401b43adcc5511, 15b59e7c3733f90ff1f7dd66ad77ae1c90bcdff5 ≤ v < 04201dcc88b26eac52f736e39727fc5c420b7257, 15b59e7c3733f90ff1f7dd66ad77ae1c90bcdff5 ≤ v < e72a795df521cb65b7c4705cc11078cdacfaa2f4, 15b59e7c3733f90ff1f7dd66ad77ae1c90bcdff5 ≤ v < 1537bd55b4f842565068c54b47cd2ae1777d5f8f, 15b59e7c3733f90ff1f7dd66ad77ae1c90bcdff5 ≤ v < da14fae5203b72ca71ccfa9af8de9249e40d533a, 15b59e7c3733f90ff1f7dd66ad77ae1c90bcdff5 ≤ v < 182f16a20d329a1c818d51dad57d9bf43d356c7c, 15b59e7c3733f90ff1f7dd66ad77ae1c90bcdff5 ≤ v < 0e9edb108a63bbbef952dfcbc597e34ed9c1fb74, 15b59e7c3733f90ff1f7dd66ad77ae1c90bcdff5 ≤ v < 6ef9a4afb52cb102ab038cd42352c142d8505d09, 15b59e7c3733f90ff1f7dd66ad77ae1c90bcdff5 ≤ v < c5bcb084a9871e5b62afb5f48b60adfa13b5d9f8, 3.14 | fd0f211b27a6ec2ebd8c315683401b43adcc5511, 04201dcc88b26eac52f736e39727fc5c420b7257, e72a795df521cb65b7c4705cc11078cdacfaa2f4, 1537bd55b4f842565068c54b47cd2ae1777d5f8f, da14fae5203b72ca71ccfa9af8de9249e40d533a, 182f16a20d329a1c818d51dad57d9bf43d356c7c, 0e9edb108a63bbbef952dfcbc597e34ed9c1fb74, 6ef9a4afb52cb102ab038cd42352c142d8505d09, c5bcb084a9871e5b62afb5f48b60adfa13b5d9f8 |
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