CVE-2026-68451

A flaw was found in the Linux kernel's s390 zcrypt module. The ccaecc2protkey function, responsible for handling Common Cryptographic Architecture CCA Elliptic Curve Cryptography ECC private key requests, does not properly validate the length of the key token. This allows a local attacker to...

CVE-2026-68451: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: s390/zcrypt: Validate length for CCA ECC private key requests ccaecc2protkey 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 excee...