diff --git a/boards/arm/lpc17xx_40xx/lpc4088-devkit/scripts/memory.ld b/boards/arm/lpc17xx_40xx/lpc4088-devkit/scripts/memory.ld
index 21d1813218..4cc10d8278 100644
--- a/boards/arm/lpc17xx_40xx/lpc4088-devkit/scripts/memory.ld
+++ b/boards/arm/lpc17xx_40xx/lpc4088-devkit/scripts/memory.ld
@@ -73,9 +73,9 @@ MEMORY
 
   /* 64Kb of SRAM in the CPU block */
 
-  ksram (rwx)      : ORIGIN = 0x10000000, LENGTH = 4K   /* May include waste */
-  usram (rwx)      : ORIGIN = 0x10001000, LENGTH = 4K
-  xsram (rwx)      : ORIGIN = 0x10002000, LENGTH = 24K  /* All used as heap */
+  ksram (rwx)      : ORIGIN = 0x10000000, LENGTH = 6K   /* May include waste */
+  usram (rwx)      : ORIGIN = 0x10001800, LENGTH = 4K
+  xsram (rwx)      : ORIGIN = 0x10002800, LENGTH = 22K  /* All used as heap */
 
   /* Other peripheral memory (free, nothing is linked here) */
 
diff --git a/boards/arm/lpc17xx_40xx/lpc4088-quickstart/scripts/memory.ld b/boards/arm/lpc17xx_40xx/lpc4088-quickstart/scripts/memory.ld
index cba850d0b0..28275cf76f 100644
--- a/boards/arm/lpc17xx_40xx/lpc4088-quickstart/scripts/memory.ld
+++ b/boards/arm/lpc17xx_40xx/lpc4088-quickstart/scripts/memory.ld
@@ -73,9 +73,9 @@ MEMORY
 
   /* 64Kb of SRAM in the CPU block */
 
-  ksram (rwx)      : ORIGIN = 0x10000000, LENGTH = 4K   /* May include waste */
-  usram (rwx)      : ORIGIN = 0x10001000, LENGTH = 4K
-  xsram (rwx)      : ORIGIN = 0x10002000, LENGTH = 24K  /* All used as heap */
+  ksram (rwx)      : ORIGIN = 0x10000000, LENGTH = 6K   /* May include waste */
+  usram (rwx)      : ORIGIN = 0x10001800, LENGTH = 4K
+  xsram (rwx)      : ORIGIN = 0x10002800, LENGTH = 22K  /* All used as heap */
 
   /* Other peripheral memory (free, nothing is linked here) */
 
diff --git a/boards/arm/lpc17xx_40xx/open1788/scripts/memory.ld b/boards/arm/lpc17xx_40xx/open1788/scripts/memory.ld
index f5f4a55d29..0a426207a2 100644
--- a/boards/arm/lpc17xx_40xx/open1788/scripts/memory.ld
+++ b/boards/arm/lpc17xx_40xx/open1788/scripts/memory.ld
@@ -73,9 +73,9 @@ MEMORY
 
   /* 64Kb of SRAM in the CPU block */
 
-  ksram (rwx)      : ORIGIN = 0x10000000, LENGTH = 4K   /* May include waste */
-  usram (rwx)      : ORIGIN = 0x10001000, LENGTH = 4K
-  xsram (rwx)      : ORIGIN = 0x10002000, LENGTH = 24K  /* All used as heap */
+  ksram (rwx)      : ORIGIN = 0x10000000, LENGTH = 6K   /* May include waste */
+  usram (rwx)      : ORIGIN = 0x10001800, LENGTH = 4K
+  xsram (rwx)      : ORIGIN = 0x10002800, LENGTH = 22K  /* All used as heap */
 
   /* Other peripheral memory (free, nothing is linked here) */
 
diff --git a/boards/arm/sam34/sam3u-ek/scripts/memory.ld b/boards/arm/sam34/sam3u-ek/scripts/memory.ld
index e1c985cc7f..86ddea8980 100644
--- a/boards/arm/sam34/sam3u-ek/scripts/memory.ld
+++ b/boards/arm/sam34/sam3u-ek/scripts/memory.ld
@@ -72,9 +72,9 @@ MEMORY
 
   /* 32Kb SRAM */
 
-  ksram1 (rwx) : ORIGIN = 0x20000000, LENGTH = 4K
-  usram1 (rwx) : ORIGIN = 0x20001000, LENGTH = 4K
-  xsram1 (rwx) : ORIGIN = 0x20002000, LENGTH = 24K
+  ksram1 (rwx) : ORIGIN = 0x20000000, LENGTH = 6K
+  usram1 (rwx) : ORIGIN = 0x20001800, LENGTH = 4K
+  xsram1 (rwx) : ORIGIN = 0x20002800, LENGTH = 22K
 
   /* 16Kb SRAM */
 
diff --git a/boards/arm/stm32/stm3240g-eval/scripts/memory.ld b/boards/arm/stm32/stm3240g-eval/scripts/memory.ld
index 115d523216..95ee51b96b 100644
--- a/boards/arm/stm32/stm3240g-eval/scripts/memory.ld
+++ b/boards/arm/stm32/stm3240g-eval/scripts/memory.ld
@@ -79,7 +79,7 @@ MEMORY
 
   /* 112Kb of contiguous SRAM */
 
-  ksram (rwx)      : ORIGIN = 0x20000000, LENGTH = 4K
-  usram (rwx)      : ORIGIN = 0x20001000, LENGTH = 4K
-  xsram (rwx)      : ORIGIN = 0x20002000, LENGTH = 104K
+  ksram (rwx)      : ORIGIN = 0x20000000, LENGTH = 6K
+  usram (rwx)      : ORIGIN = 0x20001800, LENGTH = 4K
+  xsram (rwx)      : ORIGIN = 0x20002800, LENGTH = 102K
 }