In the Linux kernel, the following vulnerability has been resolved:

s390/zcrypt: Validate length for CCA ECC private key requests

cca_ecc2protkey() derives the copy length for the CPRB parameter
block directly from the length field in the key token. Reject the
request early if the token length exceeds the available space in the
parameter block.

No CVSS v4.0

No CVSS v3.1

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
Linux Linux unaffected
Version Status Constraints
fa6999e326fe7851ecbd572b8cb9be8e930ebf41 affected < dd25bd9b0f36849808bd7625dcc59dd4c1aeef3e
fa6999e326fe7851ecbd572b8cb9be8e930ebf41 affected < ecc3b8691c1935f9f3e4eb964ab11e40fdec17f5
fa6999e326fe7851ecbd572b8cb9be8e930ebf41 affected < 013a4484f061a2b41f052e25c0015203287e63f1
fa6999e326fe7851ecbd572b8cb9be8e930ebf41 affected < 8fa3e9435a13c335efb63fb4f4e77531a0031159
fa6999e326fe7851ecbd572b8cb9be8e930ebf41 affected < a9ae0f6dd45c3ccc1d69363f7aea8af179122730
Linux Linux affected
Version Status Constraints
5.10 affected —
0 unaffected < 5.10
6.6.151 unaffected ≤ 6.6.*
6.12.103 unaffected ≤ 6.12.*
6.18.44 unaffected ≤ 6.18.*
7.1.8 unaffected ≤ 7.1.*
7.2-rc6 unaffected ≤ *

No data.

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Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://git.kernel.org/stable/c/013a4484f061a2b41f052e25c0015203287e63f1 cve-icon cve-icon
https://git.kernel.org/stable/c/8fa3e9435a13c335efb63fb4f4e77531a0031159 cve-icon cve-icon
https://git.kernel.org/stable/c/a9ae0f6dd45c3ccc1d69363f7aea8af179122730 cve-icon cve-icon
https://git.kernel.org/stable/c/dd25bd9b0f36849808bd7625dcc59dd4c1aeef3e cve-icon cve-icon
https://git.kernel.org/stable/c/ecc3b8691c1935f9f3e4eb964ab11e40fdec17f5 cve-icon cve-icon
History

Thu, 13 Aug 2026 14:30:00 +0000

Type Values Removed Values Added
Description In the Linux kernel, the following vulnerability has been resolved: s390/zcrypt: Validate length for CCA ECC private key requests cca_ecc2protkey() derives the copy length for the CPRB parameter block directly from the length field in the key token. Reject the request early if the token length exceeds the available space in the parameter block.
Title s390/zcrypt: Validate length for CCA ECC private key requests
First Time appeared Linux
Linux linux Kernel
CPEs cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Vendors & Products Linux
Linux linux Kernel
References

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cve-icon MITRE

Status: PUBLISHED

Assigner: Linux

Published:

Updated: 2026-08-13T13:59:53.674Z

Reserved: 2026-07-30T09:28:09.395Z

Link: CVE-2026-68451

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-08-13T15:19:57.847

Modified: 2026-08-13T15:19:57.847

Link: CVE-2026-68451

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

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Weaknesses

No weakness.