[U-Boot] [PATCH 1/1] efi_loader: parameter checks for LoadImage

[Heinrich Schuchardt]

Add parameter checks in efi_load_image().
Check memory allocation is successful in efi_load_image().

Signed-off-by: Heinrich Schuchardt <xypron.glpk at gmx.de>
---
 lib/efi_loader/efi_boottime.c | 20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)

diff --git a/lib/efi_loader/efi_boottime.c b/lib/efi_loader/efi_boottime.c
index 6c7a2ebf95..1ff0568d47 100644
--- a/lib/efi_loader/efi_boottime.c
+++ b/lib/efi_loader/efi_boottime.c
@@ -1573,8 +1573,27 @@ static efi_status_t EFIAPI efi_load_image(bool boot_policy,
 	EFI_ENTRY("%d, %p, %pD, %p, %ld, %p", boot_policy, parent_image,
 		  file_path, source_buffer, source_size, image_handle);
 
+	if (!image_handle || !parent_image) {
+		ret = EFI_INVALID_PARAMETER;
+		goto error;
+	}
+
+	if (!source_buffer && !file_path) {
+		ret = EFI_NOT_FOUND;
+		goto error;
+	}
+
 	info = calloc(1, sizeof(*info));
+	if (!info) {
+		ret = EFI_OUT_OF_RESOURCES;
+		goto error;
+	}
 	obj = calloc(1, sizeof(*obj));
+	if (!obj) {
+		free(info);
+		ret = EFI_OUT_OF_RESOURCES;
+		goto error;
+	}
 
 	if (!source_buffer) {
 		struct efi_device_path *dp, *fp;
@@ -1610,6 +1629,7 @@ static efi_status_t EFIAPI efi_load_image(bool boot_policy,
 failure:
 	free(info);
 	efi_delete_handle(obj);
+error:
 	return EFI_EXIT(ret);
 }
 
-- 
2.14.2