diff --git a/core/embed/trezorhal/stm32f4/linker/kernel.ld b/core/embed/trezorhal/stm32f4/linker/kernel.ld
index 319bfe0f83..48a59b3a28 100644
--- a/core/embed/trezorhal/stm32f4/linker/kernel.ld
+++ b/core/embed/trezorhal/stm32f4/linker/kernel.ld
@@ -6,7 +6,7 @@ MEMORY {
   FLASH  (rx)     : ORIGIN = KERNEL_START, LENGTH = KERNEL_IMAGE_MAXSIZE
   CCMRAM (wal)    : ORIGIN = MCU_CCMRAM + MCU_CCMRAM_SIZE - KERNEL_CCMRAM_SIZE - BOOTARGS_SIZE, LENGTH = KERNEL_CCMRAM_SIZE - BOOTARGS_SIZE
   BOOT_ARGS (wal) : ORIGIN = MCU_CCMRAM + MCU_CCMRAM_SIZE - BOOTARGS_SIZE, LENGTH = BOOTARGS_SIZE
-  SRAM   (wal)    : ORIGIN = MCU_SRAM + KERNEL_SRAM_SIZE, LENGTH = KERNEL_SRAM_SIZE
+  SRAM   (wal)    : ORIGIN = MCU_SRAM + MCU_SRAM_SIZE - KERNEL_SRAM_SIZE, LENGTH = KERNEL_SRAM_SIZE
 }
 
 main_stack_base = ORIGIN(SRAM) + SIZEOF(.stack); /* 8-byte aligned full descending stack */