--- zzzz-none-000/linux-4.19.183/arch/arm/mm/mmu.c	2021-03-24 10:07:39.000000000 +0000
+++ bcm63-7530ax-756/linux-4.19.183/arch/arm/mm/mmu.c	2023-06-28 08:54:18.000000000 +0000
@@ -1270,8 +1270,19 @@
 	/*
 	 * Clear out all the mappings below the kernel image.
 	 */
+#if defined(CONFIG_BCM_KF_ARM_KASAN)
+	for (addr = 0; addr < TASK_SIZE; addr += PMD_SIZE)
+#else
 	for (addr = 0; addr < MODULES_VADDR; addr += PMD_SIZE)
+#endif
 		pmd_clear(pmd_off_k(addr));
+#if defined(CONFIG_BCM_KF_ARM_KASAN)
+
+#ifdef CONFIG_KASAN
+	/*TASK_SIZE ~ MODULES_VADDR is the KASAN's shadow area -- skip over it*/
+	addr = MODULES_VADDR;
+#endif
+#endif
 
 #ifdef CONFIG_XIP_KERNEL
 	/* The XIP kernel is mapped in the module area -- skip over it */