After calling uefi interface allocate_pool to apply for memory, we should clear 0 to prevent the possibility of using random values. Signed-off-by: Qiang Ma <maqianga@xxxxxxxxxxxxx> --- drivers/firmware/efi/libstub/screen_info.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/firmware/efi/libstub/screen_info.c b/drivers/firmware/efi/libstub/screen_info.c index a51ec201ca3c..5d3a1e32d177 100644 --- a/drivers/firmware/efi/libstub/screen_info.c +++ b/drivers/firmware/efi/libstub/screen_info.c @@ -32,6 +32,8 @@ struct screen_info *__alloc_screen_info(void) if (status != EFI_SUCCESS) return NULL; + memset(si, 0, sizeof(*si)); + status = efi_bs_call(install_configuration_table, &screen_info_guid, si); if (status == EFI_SUCCESS) -- 2.20.1
