diff --git a/arch/x86/mm/kasan_init_64.c b/arch/x86/mm/kasan_init_64.c
index c1d99556c024c0a0d115cbefb32fc42ac3638623..b4b187960dd0ff4e29cd910559c5c460b6c681fc 100644
--- a/arch/x86/mm/kasan_init_64.c
+++ b/arch/x86/mm/kasan_init_64.c
@@ -343,7 +343,7 @@ void __init kasan_populate_shadow_for_vaddr(void *va, size_t size, int nid)
 
 void __init kasan_init(void)
 {
-	unsigned long shadow_cea_begin, shadow_cea_end;
+	unsigned long shadow_cea_begin, shadow_cea_per_cpu_begin, shadow_cea_end;
 	int i;
 
 	memcpy(early_top_pgt, init_top_pgt, sizeof(early_top_pgt));
@@ -386,6 +386,7 @@ void __init kasan_init(void)
 	}
 
 	shadow_cea_begin = kasan_mem_to_shadow_align_down(CPU_ENTRY_AREA_BASE);
+	shadow_cea_per_cpu_begin = kasan_mem_to_shadow_align_up(CPU_ENTRY_AREA_PER_CPU);
 	shadow_cea_end = kasan_mem_to_shadow_align_up(CPU_ENTRY_AREA_BASE +
 						      CPU_ENTRY_AREA_MAP_SIZE);
 
@@ -411,6 +412,15 @@ void __init kasan_init(void)
 		kasan_mem_to_shadow((void *)VMALLOC_END + 1),
 		(void *)shadow_cea_begin);
 
+	/*
+	 * Populate the shadow for the shared portion of the CPU entry area.
+	 * Shadows for the per-CPU areas are mapped on-demand, as each CPU's
+	 * area is randomly placed somewhere in the 512GiB range and mapping
+	 * the entire 512GiB range is prohibitively expensive.
+	 */
+	kasan_populate_shadow(shadow_cea_begin,
+			      shadow_cea_per_cpu_begin, 0);
+
 	kasan_populate_early_shadow((void *)shadow_cea_end,
 			kasan_mem_to_shadow((void *)__START_KERNEL_map));