diff mbox series

efi/libstub: Fixed an issue with screen_info not being initialized

Message ID 20240717070043.5537-1-maqianga@uniontech.com
State New
Headers show
Series efi/libstub: Fixed an issue with screen_info not being initialized | expand

Commit Message

Qiang Ma July 17, 2024, 7 a.m. UTC
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@uniontech.com>
---
 drivers/firmware/efi/libstub/screen_info.c | 2 ++
 1 file changed, 2 insertions(+)
diff mbox series

Patch

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)