[PATCH 3/3] hp-wmi: move from kmalloc to kzalloc

[yahia <yahia.a.abdrabou@gmail.com>]

From: yahia ahmed <yahia.a.abdrabou@gmail.com>

hp_wmi_query_perform() currently uses kmalloc to allocate memory for the
bios's response, though this creates a security hole pointed out by
sashiko that when using kmalloc, it won't zero out the memory space, thus
leaving information like passwords and other important data.

Reported-by: sashiko-bot@kernel.org
Link: https://sashiko.dev/#/message/20260706143855.35002-1-yahia.a.abdrabou%40gmail.com
Fixes: 4b4967cbd268 ("platform/x86: hp-wmi: Changing bios_args.data to be dynamically allocated")
Signed-off-by: yahia ahmed <yahia.a.abdrabou@gmail.com>
---
 drivers/platform/x86/hp/hp-wmi.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/platform/x86/hp/hp-wmi.c b/drivers/platform/x86/hp/hp-wmi.c
index 3235ade2fa98..f120900f536d 100644
--- a/drivers/platform/x86/hp/hp-wmi.c
+++ b/drivers/platform/x86/hp/hp-wmi.c
@@ -593,7 +593,7 @@ static int hp_wmi_perform_query(int query, enum hp_wmi_command command,
 
 	actual_insize = max(insize, 128);
 	bios_args_size = struct_size(args, data, actual_insize);
-	args = kmalloc(bios_args_size, GFP_KERNEL);
+	args = kzalloc(bios_args_size, GFP_KERNEL);
 	if (!args)
 		return -ENOMEM;
 
-- 
2.55.0