diff --git a/lib/Kconfig b/lib/Kconfig
index 3ea1c830efabc350f4def96e08e71326faca093c..5ddda7c2ed9b3387375fa54ecec6b539f921d951 100644
--- a/lib/Kconfig
+++ b/lib/Kconfig
@@ -713,10 +713,20 @@ config ARCH_STACKWALK
 config STACKDEPOT
 	bool
 	select STACKTRACE
+	help
+	  Stack depot: stack trace storage that avoids duplication
 
 config STACKDEPOT_ALWAYS_INIT
 	bool
 	select STACKDEPOT
+	help
+	  Always initialize stack depot during early boot
+
+config STACKDEPOT_MAX_FRAMES
+	int "Maximum number of frames in trace saved in stack depot"
+	range 1 256
+	default 64
+	depends on STACKDEPOT
 
 config REF_TRACKER
 	bool
diff --git a/lib/stackdepot.c b/lib/stackdepot.c
index e41713983cac8bcca5a401634dcedba244d14cc0..682497dbe081320977f3cf50ae837676da029353 100644
--- a/lib/stackdepot.c
+++ b/lib/stackdepot.c
@@ -58,9 +58,12 @@ struct stack_record {
 	u32 hash;			/* Hash in the hash table */
 	u32 size;			/* Number of stored frames */
 	union handle_parts handle;
-	unsigned long entries[];	/* Variable-sized array of frames */
+	unsigned long entries[CONFIG_STACKDEPOT_MAX_FRAMES];	/* Frames */
 };
 
+#define DEPOT_STACK_RECORD_SIZE \
+	ALIGN(sizeof(struct stack_record), 1 << DEPOT_STACK_ALIGN)
+
 static bool stack_depot_disabled;
 static bool __stack_depot_early_init_requested __initdata = IS_ENABLED(CONFIG_STACKDEPOT_ALWAYS_INIT);
 static bool __stack_depot_early_init_passed __initdata;
@@ -264,9 +267,7 @@ static struct stack_record *
 depot_alloc_stack(unsigned long *entries, int size, u32 hash, void **prealloc)
 {
 	struct stack_record *stack;
-	size_t required_size = struct_size(stack, entries, size);
-
-	required_size = ALIGN(required_size, 1 << DEPOT_STACK_ALIGN);
+	size_t required_size = DEPOT_STACK_RECORD_SIZE;
 
 	/* Check if there is not enough space in the current pool. */
 	if (unlikely(pool_offset + required_size > DEPOT_POOL_SIZE)) {
@@ -301,6 +302,10 @@ depot_alloc_stack(unsigned long *entries, int size, u32 hash, void **prealloc)
 	if (stack_pools[pool_index] == NULL)
 		return NULL;
 
+	/* Limit number of saved frames to CONFIG_STACKDEPOT_MAX_FRAMES. */
+	if (size > CONFIG_STACKDEPOT_MAX_FRAMES)
+		size = CONFIG_STACKDEPOT_MAX_FRAMES;
+
 	/* Save the stack trace. */
 	stack = stack_pools[pool_index] + pool_offset;
 	stack->hash = hash;