1 files changed, 8 insertions, 3 deletions

diff --git a/arch/x86/kernel/acpi/boot.c b/arch/x86/kernel/acpi/boot.c
index 1a5b9a8e6c4f..ec881c6bfee0 100644
--- a/arch/x86/kernel/acpi/boot.c
+++ b/arch/x86/kernel/acpi/boot.c
@@ -198,6 +198,11 @@ static void __cpuinit acpi_register_lapic(int id, u8 enabled)
 {
         unsigned int ver = 0;
 
+        if (id >= (MAX_LOCAL_APIC-1)) {
+                printk(KERN_INFO PREFIX "skipped apicid that is too big\n");
+                return;
+        }
+
         if (!enabled) {
                 ++disabled_cpus;
                 return;
@@ -898,13 +903,13 @@ static int __init acpi_parse_madt_lapic_entries(void)
         register_lapic_address(acpi_lapic_addr);
 
         count = acpi_table_parse_madt(ACPI_MADT_TYPE_LOCAL_SAPIC,
-                                      acpi_parse_sapic, MAX_APICS);
+                                      acpi_parse_sapic, MAX_LOCAL_APIC);
 
         if (!count) {
                 x2count = acpi_table_parse_madt(ACPI_MADT_TYPE_LOCAL_X2APIC,
-                                                acpi_parse_x2apic, MAX_APICS);
+                                        acpi_parse_x2apic, MAX_LOCAL_APIC);
                 count = acpi_table_parse_madt(ACPI_MADT_TYPE_LOCAL_APIC,
-                                              acpi_parse_lapic, MAX_APICS);
+                                        acpi_parse_lapic, MAX_LOCAL_APIC);
         }
         if (!count && !x2count) {
                 printk(KERN_ERR PREFIX "No LAPIC entries present\n");