CVE-2026-68453

A flaw was found in the Linux kernel's s390/zcrypt component. This vulnerability arises from insufficient validation of user-controlled length fields within the Common Cryptographic Architecture CCA token structures. An attacker could manipulate these fields to cause a buffer over-read or...

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...

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...

PT-2026-71615

In the Linux kernel, the following vulnerability has been resolved: s390/zcrypt: Fix buffer over-read in cca cipher2protkey Add validation of both the actual key buffer size and token length fields in all the cca check sectoken functions. Additionally check in cca gencipherkey for possible...