CVE-2026-80831crypto: mxs-dcp - fix source scatterlist length access
- —Not scoredno CVSS score yet
- 0.17%Exploitation in 30 daysEPSS · top 94% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
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.
Timeline
ID reserved
By Linux
- 9 days later
· 9 days later
Published
- 45 days later
· 45 days later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
No CVSS score yet: neither the CNA, CISA nor NVD has scored this CVE. NVD status: Received.
- EPSS (exploitation in 30 days)
- 0.17% · top 94% of all CVEs (13 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: Not scored.
Affected products
- affected 15b59e7c3733f90ff1f7dd66ad77ae1c90bcdff5 – < fd0f211b27a6ec2ebd8c315683401b43adcc5511
- affected 15b59e7c3733f90ff1f7dd66ad77ae1c90bcdff5 – < 04201dcc88b26eac52f736e39727fc5c420b7257
- affected 15b59e7c3733f90ff1f7dd66ad77ae1c90bcdff5 – < e72a795df521cb65b7c4705cc11078cdacfaa2f4
- affected 15b59e7c3733f90ff1f7dd66ad77ae1c90bcdff5 – < 1537bd55b4f842565068c54b47cd2ae1777d5f8f
- affected 15b59e7c3733f90ff1f7dd66ad77ae1c90bcdff5 – < da14fae5203b72ca71ccfa9af8de9249e40d533a
- affected 15b59e7c3733f90ff1f7dd66ad77ae1c90bcdff5 – < 182f16a20d329a1c818d51dad57d9bf43d356c7c
- affected 15b59e7c3733f90ff1f7dd66ad77ae1c90bcdff5 – < 0e9edb108a63bbbef952dfcbc597e34ed9c1fb74
- affected 15b59e7c3733f90ff1f7dd66ad77ae1c90bcdff5 – < 6ef9a4afb52cb102ab038cd42352c142d8505d09
- affected 15b59e7c3733f90ff1f7dd66ad77ae1c90bcdff5 – < c5bcb084a9871e5b62afb5f48b60adfa13b5d9f8
- affected 3.14
- unaffected < 3.14
- unaffected 5.10.269 – ≤ 5.10.*
- unaffected 5.15.220 – ≤ 5.15.*
- unaffected 6.1.187 – ≤ 6.1.*
- unaffected 6.6.156 – ≤ 6.6.*
- unaffected 6.12.108 – ≤ 6.12.*
- unaffected 6.18.49 – ≤ 6.18.*
- unaffected 7.1.13 – ≤ 7.1.*
- unaffected 7.2.3 – ≤ 7.2.*
- unaffected 7.3 – ≤ *
References
References9
- https://git.kernel.org/stable/c/fd0f211b27a6ec2ebd8c315683401b43adcc5511 (opens in a new tab)
- https://git.kernel.org/stable/c/04201dcc88b26eac52f736e39727fc5c420b7257 (opens in a new tab)
- https://git.kernel.org/stable/c/e72a795df521cb65b7c4705cc11078cdacfaa2f4 (opens in a new tab)
- https://git.kernel.org/stable/c/1537bd55b4f842565068c54b47cd2ae1777d5f8f (opens in a new tab)
- https://git.kernel.org/stable/c/da14fae5203b72ca71ccfa9af8de9249e40d533a (opens in a new tab)
- https://git.kernel.org/stable/c/182f16a20d329a1c818d51dad57d9bf43d356c7c (opens in a new tab)
- https://git.kernel.org/stable/c/0e9edb108a63bbbef952dfcbc597e34ed9c1fb74 (opens in a new tab)
- https://git.kernel.org/stable/c/6ef9a4afb52cb102ab038cd42352c142d8505d09 (opens in a new tab)
- https://git.kernel.org/stable/c/c5bcb084a9871e5b62afb5f48b60adfa13b5d9f8 (opens in a new tab)
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2026-71281 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2026-80831)Record last updated .