CVE-2026-64520

In the Linux kernel, the following vulnerability has been resolved:<br /> <br /> firmware: arm_ffa: Bound PARTITION_INFO_GET_REGS copies<br /> <br /> The register-based PARTITION_INFO_GET path trusted the firmware-provided<br /> indices when copying partition descriptors into the caller buffer.<br /> Reject inconsistent counts or index progressions so the copy loop cannot<br /> write past the allocated array.<br /> <br /> (fixed cur_idx when exactly one descriptor in the first fragment)