diff --git a/app/boards/intel_adsp_ace20_lnl.conf b/app/boards/intel_adsp_ace20_lnl.conf
index 2d45466913a4..fa9acb84d377 100644
--- a/app/boards/intel_adsp_ace20_lnl.conf
+++ b/app/boards/intel_adsp_ace20_lnl.conf
@@ -33,6 +33,7 @@ CONFIG_DMA=y
 CONFIG_DMA_INTEL_ADSP_GPDMA=n
 CONFIG_INTEL_MODULES=y
 CONFIG_LIBRARY_MANAGER=y
+CONFIG_LIBRARY_AUTH_SUPPORT=y
 CONFIG_INTEL_ADSP_TIMER=y
 CONFIG_MM_DRV_INTEL_ADSP_TLB_REMAP_UNUSED_RAM=y
 CONFIG_AMS=y
diff --git a/src/library_manager/lib_manager.c b/src/library_manager/lib_manager.c
index 133e2785330b..75b85a05b375 100644
--- a/src/library_manager/lib_manager.c
+++ b/src/library_manager/lib_manager.c
@@ -97,7 +97,7 @@ static int lib_manager_auth_proc(const void *buffer_data,
 
 	if (ret != 0) {
 		tr_err(&lib_manager_tr, "lib_manager_auth_proc() failed with error: %d", ret);
-		return -EACCES;
+		return -ENOTSUP;
 	}
 
 	/* The auth_api_busy() will timeouts internally in case of failure */
@@ -108,7 +108,7 @@ static int lib_manager_auth_proc(const void *buffer_data,
 
 	if (ret != AUTH_IMAGE_TRUSTED) {
 		tr_err(&lib_manager_tr, "lib_manager_auth_proc() Untrasted library!");
-		return -ENOTSUP;
+		return -EACCES;
 	}
 
 	if (phase == AUTH_PHASE_LAST)
@@ -653,8 +653,10 @@ static int lib_manager_store_library(struct lib_manager_dma_ext *dma_ext,
 	/* AUTH_PHASE_FIRST - checks library manifest only. */
 	ret = lib_manager_auth_proc((__sparse_force void *)man_buffer,
 				    MAN_MAX_SIZE_V1_8, AUTH_PHASE_FIRST);
-	if (ret < 0)
+	if (ret < 0) {
+		rfree((__sparse_force void *)library_base_address);
 		return ret;
+	}
 #endif /* CONFIG_LIBRARY_AUTH_SUPPORT */
 
 	/* Copy data from temp_mft_buf to destination memory (pointed by library_base_address) */
@@ -673,8 +675,10 @@ static int lib_manager_store_library(struct lib_manager_dma_ext *dma_ext,
 	/* AUTH_PHASE_LAST - do final library authentication checks */
 	ret = lib_manager_auth_proc((__sparse_force void *)library_base_address,
 				    preload_size - MAN_MAX_SIZE_V1_8, AUTH_PHASE_LAST);
-	if (ret < 0)
+	if (ret < 0) {
+		rfree((__sparse_force void *)library_base_address);
 		return ret;
+	}
 #endif /* CONFIG_LIBRARY_AUTH_SUPPORT */
 
 	/* Now update sof context with new library */