From 1f7a8b3389d66f279bf75fcfdd10c1c7d2561d6e Mon Sep 17 00:00:00 2001 From: Heinrich Schuchardt Date: Sat, 15 Jun 2019 12:58:30 +0200 Subject: [PATCH] efi_loader: SetMode() parameters check If EFI_GRAPHICS_OUTPUT_PROTOCOL.SetMode() is called with an invalid mode, return EFI_UNSUPPORTED. Signed-off-by: Heinrich Schuchardt --- lib/efi_loader/efi_gop.c | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-) diff --git a/lib/efi_loader/efi_gop.c b/lib/efi_loader/efi_gop.c index c44a1cfc47..676463f2de 100644 --- a/lib/efi_loader/efi_gop.c +++ b/lib/efi_loader/efi_gop.c @@ -60,12 +60,14 @@ out: static efi_status_t EFIAPI gop_set_mode(struct efi_gop *this, u32 mode_number) { + efi_status_t ret = EFI_SUCCESS; + EFI_ENTRY("%p, %x", this, mode_number); - if (mode_number != 0) - return EFI_EXIT(EFI_INVALID_PARAMETER); + if (mode_number) + ret = EFI_UNSUPPORTED; - return EFI_EXIT(EFI_SUCCESS); + return EFI_EXIT(ret); } static __always_inline struct efi_gop_pixel efi_vid16_to_blt_col(u16 vid) -- 2.39.5