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CVE-2026-80831

crypto: mxs-dcp - fix source scatterlist length access

Published: Sep 4, 2026Updated: Sep 4, 2026 Sources: CVE List NVD
N/ACVSS
NVD MITRE
EPSS Score
0.2%
Top 93.8%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
No Fix Available
Self-Check
OpenVAS

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.

No summary for this CVE yet.

Affected Products

Linux
oss-projectaka the linux kernel
LinuxOn-premOS
Operating Systems / linux-distro

Exploitability

No known exploits, KEV entries, or remediation guidance available for this vulnerability yet.
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References

https://git.kernel.org/stable/c/fd0f211b27a6ec2ebd8c315683401b43adcc5511
git.kernel.org
https://git.kernel.org/stable/c/04201dcc88b26eac52f736e39727fc5c420b7257
git.kernel.org
https://git.kernel.org/stable/c/e72a795df521cb65b7c4705cc11078cdacfaa2f4
git.kernel.org
and 6 more references View all →
News mentions
1

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