CVE-2026-64558 | Linux Kernel up to 6.12.96/6.18.39/7.1.4 s390 key_to_protkey buffer overflow

A vulnerability was found in Linux Kernel up to 6.12.96/6.18.39/7.1.4 and classified as very critical. This impacts the function key_to_protkey of the component s390. Such manipulation leads to buffer overflow.

This vulnerability is documented as CVE-2026-64558. The attack can be executed remotely. There is not any exploit available.

It is suggested to upgrade the affected component.VulDB Recent EntriesRead More