1 files changed, 5 insertions, 1 deletions

diff --git a/arch/x86/kernel/cpu/microcode/intel_early.c b/arch/x86/kernel/cpu/microcode/intel_early.c
index ec9df6f9cd47..420eb933189c 100644
--- a/arch/x86/kernel/cpu/microcode/intel_early.c
+++ b/arch/x86/kernel/cpu/microcode/intel_early.c
@@ -321,7 +321,11 @@ get_matching_model_microcode(int cpu, unsigned long start,
         unsigned int mc_saved_count = mc_saved_data->mc_saved_count;
         int i;
 
-        while (leftover) {
+        while (leftover && mc_saved_count < ARRAY_SIZE(mc_saved_tmp)) {
+
+                if (leftover < sizeof(mc_header))
+                        break;
+
                 mc_header = (struct microcode_header_intel *)ucode_ptr;
 
                 mc_size = get_totalsize(mc_header);