Return EFI_INVALID_PARAMETER if the variable name has zero length or the variable has runtime access but not boottime access.

Signed-off-by: Heinrich Schuchardt xypron.glpk@gmx.de --- lib/efi_loader/efi_variable.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/lib/efi_loader/efi_variable.c b/lib/efi_loader/efi_variable.c index e56053194d..1d1b23b0e5 100644 --- a/lib/efi_loader/efi_variable.c +++ b/lib/efi_loader/efi_variable.c @@ -430,7 +430,9 @@ efi_status_t EFIAPI efi_set_variable(u16 *variable_name, data_size, data);

/* TODO: implement APPEND_WRITE */ - if (!variable_name || !vendor || + if (!variable_name || !*variable_name || !vendor || + ((attributes & EFI_VARIABLE_RUNTIME_ACCESS) && + !(attributes & EFI_VARIABLE_BOOTSERVICE_ACCESS)) || (attributes & EFI_VARIABLE_APPEND_WRITE)) { ret = EFI_INVALID_PARAMETER; goto out; -- 2.20.1