CVE-2026-98396 powerpc: Do not restore KUAP in arch_exit_to_user_mode_prepare()

In the Linux kernel, the following vulnerability has been resolved: powerpc: Do not restore KUAP in archexittousermodeprepare KUAP means kernel cannot touch user memory unless it explicitly is enabled. In the kernel it should stay AMRKUAPBLOCKED. While returning to userspace just before RFI, kern...

CVE-2026-98396

In the Linux kernel, the following vulnerability has been resolved: powerpc: Do not restore KUAP in archexittousermodeprepare KUAP means kernel cannot touch user memory unless it explicitly is enabled. In the kernel it should stay AMRKUAPBLOCKED. While returning to userspace just before RFI, kern...