CVE-2026-68453

In the Linux kernel, the following vulnerability has been resolved: s390/zcrypt: Fix buffer over-read in ccacipher2protkey Add validation of both the actual key buffer size and token length fields in all the ccachecksectoken functions. Additionally check in ccagencipherkey for possible underflow...

CVE-2026-68452

In the Linux kernel, the following vulnerability has been resolved: s390/zcrypt: Validate length for CCA AES cipher key requests ccacipher2protkey 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...

CVE-2026-68451

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...

UBUNTU-CVE-2026-68452

In the Linux kernel, the following vulnerability has been resolved: s390/zcrypt: Validate length for CCA AES cipher key requests ccacipher2protkey 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...

UBUNTU-CVE-2026-68451

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...

UBUNTU-CVE-2026-68453

In the Linux kernel, the following vulnerability has been resolved: s390/zcrypt: Fix buffer over-read in ccacipher2protkey Add validation of both the actual key buffer size and token length fields in all the ccachecksectoken functions. Additionally check in ccagencipherkey for possible underflow...

CVE-2026-68453

CVE-2026-68453 affects the Linux kernel, s390/zcrypt: a buffer over-read/under-run was possible due to insufficient validation of user-controlled length fields in CCA token structures (cca_check_sec*token() and related key handling). The fix enforces that the key buffer length is at least the tok...

CVE-2026-68453

In the Linux kernel, the following vulnerability has been resolved: s390/zcrypt: Fix buffer over-read in ccacipher2protkey Add validation of both the actual key buffer size and token length fields in all the ccachecksectoken functions. Additionally check in ccagencipherkey for possible underflow...

CVE-2026-68453 s390/zcrypt: Fix buffer over-read in cca_cipher2protkey

In the Linux kernel, the following vulnerability has been resolved: s390/zcrypt: Fix buffer over-read in ccacipher2protkey Add validation of both the actual key buffer size and token length fields in all the ccachecksectoken functions. Additionally check in ccagencipherkey for possible underflow...

CVE-2026-68453 s390/zcrypt: Fix buffer over-read in cca_cipher2protkey

In the Linux kernel, the following vulnerability has been resolved: s390/zcrypt: Fix buffer over-read in ccacipher2protkey Add validation of both the actual key buffer size and token length fields in all the ccachecksectoken functions. Additionally check in ccagencipherkey for possible underflow...

EUVD-2026-57922

In the Linux kernel, the following vulnerability has been resolved: s390/zcrypt: Fix buffer over-read in ccacipher2protkey Add validation of both the actual key buffer size and token length fields in all the ccachecksectoken functions. Additionally check in ccagencipherkey for possible underflow...

CVE-2026-68452

The CVE-2026-68452 vulnerability affects the Linux kernel s390/zcrypt component, where insufficient validation of the length for CCA AES cipher key requests allowed an attacker to craft a key token that could trigger a buffer overflow. The root cause is cca_cipher2protkey() deriving the CPRB copy...

CVE-2026-68452 s390/zcrypt: Validate length for CCA AES cipher key requests

In the Linux kernel, the following vulnerability has been resolved: s390/zcrypt: Validate length for CCA AES cipher key requests ccacipher2protkey 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...

CVE-2026-68452

In the Linux kernel, the following vulnerability has been resolved: s390/zcrypt: Validate length for CCA AES cipher key requests ccacipher2protkey 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...

CVE-2026-68452

In the Linux kernel, the following vulnerability has been resolved: s390/zcrypt: Validate length for CCA AES cipher key requests ccacipher2protkey 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...

CVE-2026-68452 s390/zcrypt: Validate length for CCA AES cipher key requests

In the Linux kernel, the following vulnerability has been resolved: s390/zcrypt: Validate length for CCA AES cipher key requests ccacipher2protkey 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...

EUVD-2026-57921

In the Linux kernel, the following vulnerability has been resolved: s390/zcrypt: Validate length for CCA AES cipher key requests ccacipher2protkey 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...

EUVD-2026-57920

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...

CVE-2026-68451

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...

CVE-2026-68451

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...