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CVE-2026-80831

crypto: mxs-dcp - fix source scatterlist length access

N/A
Published: September 4, 2026 at 03:54 PM UTC
Updated: October 19, 2026 at 09:17 AM UTC
1 product affected across 1 vendorLinux Kernel

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Severity
N/A
Exploit prediction
EPSS 0.2%

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Linux Kernel· Linux
90%
15b59e7c3733f90ff1f7dd66ad77ae1c90bcdff53.14
Vendor states this is fixed in 04201dcc88b26eac52f736e39727fc5c420b7257 (fixed)
Vendor states this is fixed in 0e9edb108a63bbbef952dfcbc597e34ed9c1fb74 (fixed)
Vendor states this is fixed in 1537bd55b4f842565068c54b47cd2ae1777d5f8f (fixed)
Vendor states this is fixed in 182f16a20d329a1c818d51dad57d9bf43d356c7c (fixed)
Vendor states this is fixed in 6ef9a4afb52cb102ab038cd42352c142d8505d09 (fixed)
Vendor states this is fixed in c5bcb084a9871e5b62afb5f48b60adfa13b5d9f8 (fixed)
Vendor states this is fixed in da14fae5203b72ca71ccfa9af8de9249e40d533a (fixed)
Vendor states this is fixed in e72a795df521cb65b7c4705cc11078cdacfaa2f4 (fixed)
Vendor states this is fixed in fd0f211b27a6ec2ebd8c315683401b43adcc5511 (fixed)
Vendor states this is fixed in 3.14 (unaffected)
Vendor states this is fixed in 5.10.269 (unaffected)
Vendor states this is fixed in 5.15.220 (unaffected)
Vendor states this is fixed in 6.1.187 (unaffected)
Vendor states this is fixed in 6.12.108 (unaffected)
Vendor states this is fixed in 6.18.49 (unaffected)
Vendor states this is fixed in 6.6.156 (unaffected)
Vendor states this is fixed in 7.1.13 (unaffected)
Vendor states this is fixed in 7.2.3 (unaffected)
Vendor states this is fixed in 7.3 (unaffected)
Vendor states this is fixed in 7.3-rc1 (unaffected)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (9)

Source: cverecord
https://git.kernel.org/stable/c/fd0f211b27a6ec2ebd8c315683401b43adcc5511
Source: cverecord
https://git.kernel.org/stable/c/04201dcc88b26eac52f736e39727fc5c420b7257
Source: cverecord
https://git.kernel.org/stable/c/e72a795df521cb65b7c4705cc11078cdacfaa2f4
Source: cverecord
https://git.kernel.org/stable/c/1537bd55b4f842565068c54b47cd2ae1777d5f8f
Source: cverecord
https://git.kernel.org/stable/c/da14fae5203b72ca71ccfa9af8de9249e40d533a
Source: cverecord
https://git.kernel.org/stable/c/182f16a20d329a1c818d51dad57d9bf43d356c7c
Source: cverecord
https://git.kernel.org/stable/c/0e9edb108a63bbbef952dfcbc597e34ed9c1fb74
Source: cverecord
https://git.kernel.org/stable/c/6ef9a4afb52cb102ab038cd42352c142d8505d09

Quick Info

StatusRECEIVED

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