CVEvulnerability
CVE-2026-80831
- Status
- Received
- Published
- 2026-09-04
- Last modified
- 2026-10-19
- Assigner
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
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.
References
- https://git.kernel.org/stable/c/04201dcc88b26eac52f736e39727fc5c420b7257 git.kernel.org
- https://git.kernel.org/stable/c/0e9edb108a63bbbef952dfcbc597e34ed9c1fb74 git.kernel.org
- https://git.kernel.org/stable/c/1537bd55b4f842565068c54b47cd2ae1777d5f8f git.kernel.org
- https://git.kernel.org/stable/c/182f16a20d329a1c818d51dad57d9bf43d356c7c git.kernel.org
- https://git.kernel.org/stable/c/6ef9a4afb52cb102ab038cd42352c142d8505d09 git.kernel.org
- https://git.kernel.org/stable/c/c5bcb084a9871e5b62afb5f48b60adfa13b5d9f8 git.kernel.org
- https://git.kernel.org/stable/c/da14fae5203b72ca71ccfa9af8de9249e40d533a git.kernel.org
- https://git.kernel.org/stable/c/e72a795df521cb65b7c4705cc11078cdacfaa2f4 git.kernel.org
- https://git.kernel.org/stable/c/fd0f211b27a6ec2ebd8c315683401b43adcc5511 git.kernel.org