CVE-2025-38320 arm64/ptrace: Fix stack-out-of-bounds read in regs_get_kernel_stack_nth()

In the Linux kernel, the following vulnerability has been resolved: arm64/ptrace: Fix stack-out-of-bounds read in regsgetkernelstacknth KASAN reports a stack-out-of-bounds read in regsgetkernelstacknth. Call Trace: 97.283505 BUG: KASAN: stack-out-of-bounds in regsgetkernelstacknth+0xa8/0xc8...