CVE-2026-72215

Name of the Vulnerable Software and Affected Versions Linux kernel (affected versions not specified)

Description In 64-bit configurations, calling firmware entry points from a kernel thread other than the initial one causes the stack to be placed in the XKPHYS 64-bit memory segment. This results in the stack pointer no longer being a 32-bit value. When the 32-bit firmware code uses 32-bit ALU (Arithmetic Logic Unit) operations to manipulate the stack pointer, the result is incorrect, leading to a system hang or loss of control. This issue specifically affects the prom printf() entry point and can occur during bootstrap if no final console driver is enabled or when the zs driver is switched to a platform device.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.