@@ -2261,7 +2261,7 @@ static efi_status_t EFIAPI efi_locate_device_path(
EFI_ENTRY("%pUl, %p, %p", protocol, device_path, device);
- if (!protocol || !device_path || !*device_path || !device) {
+ if (!protocol || !device_path || !*device_path) {
ret = EFI_INVALID_PARAMETER;
goto out;
}
@@ -2294,6 +2294,10 @@ static efi_status_t EFIAPI efi_locate_device_path(
/* Check if dp is a subpath of device_path */
if (memcmp(*device_path, dp, len_dp))
continue;
+ if (!device) {
+ ret = EFI_INVALID_PARAMETER;
+ goto out;
+ }
*device = handles[i];
len_best = len_dp;
}
A parameter check in LocateDevicePath() does not match the requirements of the UEFI spec. If device is NULL, only return EFI_INVALID_PARAMETER if a matching handle is found. Cf. UEFI SCT II specification (2017)3.3.7 LocateDevicePath(), 5.1.3.7.3 Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de> --- lib/efi_loader/efi_boottime.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) -- 2.20.1