apdbkey 248 arch/arm64/include/uapi/asm/ptrace.h __uint128_t apdbkey; apdbkey 1007 arch/arm64/kernel/ptrace.c ukeys->apdbkey = pac_key_to_user(&keys->apdb); apdbkey 1016 arch/arm64/kernel/ptrace.c keys->apdb = pac_key_from_user(ukeys->apdbkey);