From b31ca6bf8484ca10bab4ae544698294a4197bef9 Mon Sep 17 00:00:00 2001 From: Heinrich Schuchardt Date: Sat, 18 May 2019 18:11:54 +0200 Subject: [PATCH] efi_loader: parameter check OutputString Check the parameters against NULL. Signed-off-by: Heinrich Schuchardt --- lib/efi_loader/efi_console.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/lib/efi_loader/efi_console.c b/lib/efi_loader/efi_console.c index 909fd5c29e..b2cb18e6d6 100644 --- a/lib/efi_loader/efi_console.c +++ b/lib/efi_loader/efi_console.c @@ -136,6 +136,11 @@ static efi_status_t EFIAPI efi_cout_output_string( EFI_ENTRY("%p, %p", this, string); + if (!this || !string) { + ret = EFI_INVALID_PARAMETER; + goto out; + } + buf = malloc(utf16_utf8_strlen(string) + 1); if (!buf) { ret = EFI_OUT_OF_RESOURCES; -- 2.25.1