diff --git a/include/zephyr/llext/llext.h b/include/zephyr/llext/llext.h
index b10ba2468ae..951b13b8acd 100644
--- a/include/zephyr/llext/llext.h
+++ b/include/zephyr/llext/llext.h
@@ -58,8 +58,11 @@ struct llext {
 	/** Memory allocated on heap */
 	bool mem_on_heap[LLEXT_MEM_COUNT];
 
-	/** Total size of the llext memory usage */
-	size_t mem_size;
+	/** Size of each stored section */
+	size_t mem_size[LLEXT_MEM_COUNT];
+
+	/** Total llext allocation size */
+	size_t alloc_size;
 
 	/*
 	 * These are all global symbols in the extension, all of them don't
diff --git a/subsys/llext/llext.c b/subsys/llext/llext.c
index 80d83dbb152..fc1fbf33269 100644
--- a/subsys/llext/llext.c
+++ b/subsys/llext/llext.c
@@ -302,6 +302,7 @@ static int llext_copy_section(struct llext_loader *ldr, struct llext *ext,
 	if (!ldr->sects[sect_idx].sh_size) {
 		return 0;
 	}
+	ext->mem_size[mem_idx] = ldr->sects[sect_idx].sh_size;
 
 	if (ldr->sects[sect_idx].sh_type != SHT_NOBITS &&
 	    IS_ENABLED(CONFIG_LLEXT_STORAGE_WRITABLE)) {
@@ -318,7 +319,7 @@ static int llext_copy_section(struct llext_loader *ldr, struct llext *ext,
 	if (!ext->mem[mem_idx]) {
 		return -ENOMEM;
 	}
-	ext->mem_size += ldr->sects[sect_idx].sh_size;
+	ext->alloc_size += ldr->sects[sect_idx].sh_size;
 
 	if (ldr->sects[sect_idx].sh_type == SHT_NOBITS) {
 		memset(ext->mem[mem_idx], 0, ldr->sects[sect_idx].sh_size);
@@ -431,7 +432,7 @@ static int llext_allocate_symtab(struct llext_loader *ldr, struct llext *ext)
 		return -ENOMEM;
 	}
 	memset(sym_tab->syms, 0, syms_size);
-	ext->mem_size += syms_size;
+	ext->alloc_size += syms_size;
 
 	return 0;
 }
@@ -801,7 +802,7 @@ static int do_llext_load(struct llext_loader *ldr, struct llext *ext,
 	memset(ldr->sect_map, 0, sect_map_sz);
 
 	ldr->sect_cnt = ldr->hdr.e_shnum;
-	ext->mem_size += sect_map_sz;
+	ext->alloc_size += sect_map_sz;
 
 	LOG_DBG("Finding ELF tables...");
 	ret = llext_find_tables(ldr);
diff --git a/subsys/llext/shell.c b/subsys/llext/shell.c
index 57f5b1d131b..3bc97c3be87 100644
--- a/subsys/llext/shell.c
+++ b/subsys/llext/shell.c
@@ -93,7 +93,7 @@ static int llext_shell_list_cb(struct llext *ext, void *arg)
 {
 	struct llext_shell_list *sl = arg;
 
-	shell_print(sl->sh, "| %16s | %12d |", ext->name, ext->mem_size);
+	shell_print(sl->sh, "| %16s | %12d |", ext->name, ext->alloc_size);
 	return 0;
 }