Check the parameters of EFI_GRAPHICS_OUTPUT_PROTOCOL.QueryMode().
Signed-off-by: Heinrich Schuchardt <xypron.g...@gmx.de>
---
lib/efi_loader/efi_gop.c | 9 ++++++++-
1 file changed, 8 insertions(+), 1 deletion(-)
diff --git a/lib/efi_loader/efi_gop.c b/lib/efi_loader/efi_gop.c
index 9428c3b83c..c44a1cfc47 100644
--- a/lib/efi_loader/efi_gop.c
+++ b/lib/efi_loader/efi_gop.c
@@ -41,14 +41,21 @@ static efi_status_t EFIAPI gop_query_mode(struct efi_gop
*this, u32 mode_number,
struct efi_gop_mode_info **info)
{
struct efi_gop_obj *gopobj;
+ efi_status_t ret = EFI_SUCCESS;
EFI_ENTRY("%p, %x, %p, %p", this, mode_number, size_of_info, info);
+ if (!this || !size_of_info || !info || mode_number) {
+ ret = EFI_INVALID_PARAMETER;
+ goto out;
+ }
+
gopobj = container_of(this, struct efi_gop_obj, ops);
*size_of_info = sizeof(gopobj->info);
*info = &gopobj->info;
- return EFI_EXIT(EFI_SUCCESS);
+out:
+ return EFI_EXIT(ret);
}
static efi_status_t EFIAPI gop_set_mode(struct efi_gop *this, u32 mode_number)
--
2.20.1
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