[patch] [media] bt8xx: info leak in ca_get_slot_info()

Dan Carpenter
2013-07-25T16:47:25Z

p_ca_slot_info was allocated with kmalloc() so we need to clear it
before passing it to the user.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>

diff --git a/drivers/media/pci/bt8xx/dst_ca.c b/drivers/media/pci/bt8xx/dst_ca.c
index 0e788fc..6b9dc3f 100644
--- a/drivers/media/pci/bt8xx/dst_ca.c
+++ b/drivers/media/pci/bt8xx/dst_ca.c
@@ -302,8 +302,11 @@ static int ca_get_slot_info(struct dst_state *state, struct ca_slot_info *p_ca_s
p_ca_slot_info->flags = CA_CI_MODULE_READY;
p_ca_slot_info->num = 1;
p_ca_slot_info->type = CA_CI;
- } else
+ } else {
p_ca_slot_info->flags = 0;
+ p_ca_slot_info->num = 0;
+ p_ca_slot_info->type = 0;
+ }

if (copy_to_user(arg, p_ca_slot_info, sizeof (struct ca_slot_info)))
return -EFAULT;