diff --git a/arch/arm/src/armv6-m/arm_exception.S b/arch/arm/src/armv6-m/arm_exception.S
index 6408d4d1f1ae7..22dea51a5a2f0 100644
--- a/arch/arm/src/armv6-m/arm_exception.S
+++ b/arch/arm/src/armv6-m/arm_exception.S
@@ -100,6 +100,7 @@ exception_common:
 	mrs		r1, msp					/* R1=The main stack pointer */
 	subs		r1, #SW_XCPT_SIZE			/* R1=Beginning of context array on the stack */
 	msr		msp, r1					/* Reserved stack space */
+	isb		sy
 	b		2f
 
 1:
@@ -160,6 +161,7 @@ exception_common:
 	mov		r2, r1					/* Reserve signal context */
 	subs		r2, r2, #XCPTCONTEXT_SIZE
 	msr		msp, r2					/* We are using the main stack pointer */
+	isb		sy
 3:
 #endif
 
@@ -197,10 +199,12 @@ exception_common:
 	lsls		r0, #(31 - EXC_RETURN_PROCESS_BITNO)	/* Move to bit 31 */
 	bmi		4f					/* Test bit 31 */
 	msr		msp, r1					/* R1=The main stack pointer */
+	isb		sy
 	b		5f
 
 4:
 	msr		psp, r1					/* R1=The process stack pointer */
+	isb		sy
 
 5:
 
diff --git a/arch/arm/src/armv6-m/arm_initialstate.c b/arch/arm/src/armv6-m/arm_initialstate.c
index 129cd99d1b9d3..979e77e3bf055 100644
--- a/arch/arm/src/armv6-m/arm_initialstate.c
+++ b/arch/arm/src/armv6-m/arm_initialstate.c
@@ -168,6 +168,7 @@ noinline_function void arm_initialize_stack(void)
 
       "mov %1, sp\n"
       "msr psp, %1\n"
+      "isb sy\n"
 
       /* Select PSP */
 
@@ -179,6 +180,7 @@ noinline_function void arm_initialize_stack(void)
       /* Initialize MSP */
 
       "msr msp, %0\n"
+      "isb sy\n"
       :
       : "r" (stack), "r" (tempa), "r" (tempb)
       : "memory");
diff --git a/arch/arm/src/armv7-m/arm_exception.S b/arch/arm/src/armv7-m/arm_exception.S
index 809f3aad3db34..d2478aadd2b15 100644
--- a/arch/arm/src/armv7-m/arm_exception.S
+++ b/arch/arm/src/armv7-m/arm_exception.S
@@ -138,6 +138,7 @@ exception_common:
 	mrs		r1, msp					/* R1=The main stack pointer (MSP) */
 	sub		r2, r1, #SW_XCPT_SIZE			/* Reserved stack space */
 	msr		msp, r2
+	isb		sy
 
 2:
 	mov		r2, r1					/* R2=Copy of the main/process stack pointer */
diff --git a/arch/arm/src/armv7-m/arm_initialstate.c b/arch/arm/src/armv7-m/arm_initialstate.c
index 20510c9e95251..1d4250edc87c5 100644
--- a/arch/arm/src/armv7-m/arm_initialstate.c
+++ b/arch/arm/src/armv7-m/arm_initialstate.c
@@ -190,6 +190,7 @@ noinline_function void arm_initialize_stack(void)
 
       "mov %1, sp\n"
       "msr psp, %1\n"
+      "isb sy\n"
 
       /* Select PSP */
 
@@ -201,6 +202,7 @@ noinline_function void arm_initialize_stack(void)
       /* Initialize MSP */
 
       "msr msp, %0\n"
+      "isb sy\n"
       :
       : "r" (stack), "r" (temp)
       : "memory");
diff --git a/arch/arm/src/armv8-m/arm_exception.S b/arch/arm/src/armv8-m/arm_exception.S
index 01ac94eb65c52..cd9cc92bc73da 100644
--- a/arch/arm/src/armv8-m/arm_exception.S
+++ b/arch/arm/src/armv8-m/arm_exception.S
@@ -137,6 +137,7 @@ exception_common:
 	mrs		r1, msp					/* R1=The main stack pointer (MSP) */
 	sub		r2, r1, #SW_XCPT_SIZE			/* Reserve the stack space */
 	msr		msp, r2
+	isb		sy
 2:
 	mov		r2, r1					/* R2=Copy of the main/process stack pointer */
 	add		r2, #HW_XCPT_SIZE			/* R2=MSP/PSP before the interrupt was taken */
diff --git a/arch/arm/src/armv8-m/arm_initialstate.c b/arch/arm/src/armv8-m/arm_initialstate.c
index c88e35ae7976b..ccbf494fa0adb 100644
--- a/arch/arm/src/armv8-m/arm_initialstate.c
+++ b/arch/arm/src/armv8-m/arm_initialstate.c
@@ -204,6 +204,7 @@ noinline_function void arm_initialize_stack(void)
       "mrs %1, msplim\n"
       "msr psplim, %1\n"
 #endif
+      "isb sy\n"
 
       /* Select PSP */
 
@@ -219,6 +220,7 @@ noinline_function void arm_initialize_stack(void)
 #ifdef CONFIG_ARMV8M_STACKCHECK_HARDWARE
       "msr msplim, %2\n"
 #endif
+      "isb sy\n"
       :
 #ifdef CONFIG_ARMV8M_STACKCHECK_HARDWARE
       : "r" (stack), "r" (temp), "r" (stacklim)