CVE-2026-80831: Linux vulnerability

CVE-2026-80831: crypto: mxs-dcp - fix source scatterlist length access

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.

UnknownCVSS not scoredNot KEV-listedUpdatedOct 19, 2026, 08:44 UTC (UTC+00:00)

Potential ATT&CK relevance

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Vulnerability profileCVE Program record

Severity: Unknown
CVSS: Not scored
Known Exploited: No
Published: Sep 4, 2026, 15:54 UTC (UTC+00:00)

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

0CVSS vectors

3Timeline events

0ADP providers

10Source links

Vulnerability timeline

Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.

CVE reservedCVE Program
The CVE ID was reserved by the assigning CNA.
Aug 26, 2026, 14:34 UTC (UTC+00:00)
CVE publishedCVE Program
The CVE record was published.
Sep 4, 2026, 15:54 UTC (UTC+00:00)
CVE updatedCVE Program
The CVE record metadata indicates this as the latest update time.
Oct 19, 2026, 08:44 UTC (UTC+00:00)

Source materials

CVE List V5 sourceCVE List V5
https://git.kernel.org/stable/c/fd0f211b27a6ec2ebd8c315683401b43adcc5511CVE reference, Linux
https://git.kernel.org/stable/c/04201dcc88b26eac52f736e39727fc5c420b7257CVE reference, Linux
https://git.kernel.org/stable/c/e72a795df521cb65b7c4705cc11078cdacfaa2f4CVE reference, Linux
https://git.kernel.org/stable/c/1537bd55b4f842565068c54b47cd2ae1777d5f8fCVE reference, Linux
https://git.kernel.org/stable/c/da14fae5203b72ca71ccfa9af8de9249e40d533aCVE reference, Linux
https://git.kernel.org/stable/c/182f16a20d329a1c818d51dad57d9bf43d356c7cCVE reference, Linux
https://git.kernel.org/stable/c/0e9edb108a63bbbef952dfcbc597e34ed9c1fb74CVE reference, Linux
https://git.kernel.org/stable/c/6ef9a4afb52cb102ab038cd42352c142d8505d09CVE reference, Linux
https://git.kernel.org/stable/c/c5bcb084a9871e5b62afb5f48b60adfa13b5d9f8CVE reference, Linux

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus

LinuxLinux15b59e7c3733f90ff1f7dd66ad77ae1c90bcdff5, 15b59e7c3733f90ff1f7dd66ad77ae1c90bcdff5, 15b59e7c3733f90ff1f7dd66ad77ae1c90bcdff5, 15b59e7c3733f90ff1f7dd66ad77ae1c90bcdff5, 15b59e7c3733f90ff1f7dd66ad77ae1c90bcdff5, 15b59e7c3733f90ff1f7dd66ad77ae1c90bcdff5, 15b59e7c3733f90ff1f7dd66ad77ae1c90bcdff5, 15b59e7c3733f90ff1f7dd66ad77ae1c90bcdff5, 15b59e7c3733f90ff1f7dd66ad77ae1c90bcdff5unaffected

LinuxLinux3.14, 0, 5.10.269, 5.15.220, 6.1.187, 6.6.156, 6.12.108, 6.18.49, 7.1.13, 7.2.3, 7.3affected

Weakness

CWE details

No CWE listed

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