CVE-2026-80831

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Source
https://cve.org/CVERecord?id=CVE-2026-80831
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-80831.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2026-80831
Downstream
Related
Published
2026-09-04T15:54:36Z
Modified
2026-09-15T18:26:44Z
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.

Database specific 
{
    "cna_assigner":  "Linux",
    "osv_generated_from":  "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/80xxx/CVE-2026-80831.json"
}
References

Affected packages

Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git

Affected ranges

Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
15b59e7c3733f90ff1f7dd66ad77ae1c90bcdff5
Fixed
fd0f211b27a6ec2ebd8c315683401b43adcc5511
Fixed
04201dcc88b26eac52f736e39727fc5c420b7257
Fixed
e72a795df521cb65b7c4705cc11078cdacfaa2f4
Fixed
1537bd55b4f842565068c54b47cd2ae1777d5f8f
Fixed
da14fae5203b72ca71ccfa9af8de9249e40d533a
Fixed
182f16a20d329a1c818d51dad57d9bf43d356c7c
Fixed
0e9edb108a63bbbef952dfcbc597e34ed9c1fb74
Fixed
6ef9a4afb52cb102ab038cd42352c142d8505d09
Fixed
c5bcb084a9871e5b62afb5f48b60adfa13b5d9f8

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-80831.json"

Linux / Kernel

Package

Name
Kernel

Affected ranges

Type
ECOSYSTEM
Events
Introduced
3.14.0
Fixed
5.10.269
Type
ECOSYSTEM
Events
Introduced
5.11.0
Fixed
5.15.220
Type
ECOSYSTEM
Events
Introduced
5.16.0
Fixed
6.1.187
Type
ECOSYSTEM
Events
Introduced
6.2.0
Fixed
6.6.156
Type
ECOSYSTEM
Events
Introduced
6.7.0
Fixed
6.12.108
Type
ECOSYSTEM
Events
Introduced
6.13.0
Fixed
6.18.49
Type
ECOSYSTEM
Events
Introduced
6.19.0
Fixed
7.1.13
Type
ECOSYSTEM
Events
Introduced
7.2.0
Fixed
7.2.3

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-80831.json"