CVE-2026-80831
Dashboard / Vulnerabilities / CVE-2026-80831
Summary: crypto: mxs-dcp - fix source scatterlist length access
Details: 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, https://git.kernel.org/stable/c/0e9edb108a63bbbef952dfcbc597e34ed9c1fb74, https://git.kernel.org/stable/c/1537bd55b4f842565068c54b47cd2ae1777d5f8f, https://git.kernel.org/stable/c/182f16a20d329a1c818d51dad57d9bf43d356c7c, https://git.kernel.org/stable/c/6ef9a4afb52cb102ab038cd42352c142d8505d09, https://git.kernel.org/stable/c/c5bcb084a9871e5b62afb5f48b60adfa13b5d9f8, https://git.kernel.org/stable/c/da14fae5203b72ca71ccfa9af8de9249e40d533a, https://git.kernel.org/stable/c/e72a795df521cb65b7c4705cc11078cdacfaa2f4, https://git.kernel.org/stable/c/fd0f211b27a6ec2ebd8c315683401b43adcc5511, https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/80xxx/CVE-2026-80831.json, https://nvd.nist.gov/vuln/detail/CVE-2026-80831, https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Affected packages
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