CVE-2026-80551

A flaw was found in the Linux kernel's s390/vfioccw component. This vulnerability arises because the system does not ensure that the address in the first Indirect Data Address Word IDAW remains constant between reads. An attacker could potentially exploit this to cause the system to operate with ...

CVE-2026-80551 s390/vfio_ccw: Ensure first IDAW remains constant

In the Linux kernel, the following vulnerability has been resolved: s390/vfioccw: Ensure first IDAW remains constant The first IDAW in a list does not need to be on a 2K/4K boundary like all others, and so is read separately to accurately calculate the size of the buffer needed to read the full...