ipmi: info leak in compat_ipmi_ioctl()

On x86_64 there is a 4 byte hole between ->recv_type and ->addr.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Corey Minyard <cminyard@mvista.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 1 insertions, 0 deletions

diff --git a/drivers/char/ipmi/ipmi_devintf.c b/drivers/char/ipmi/ipmi_devintf.c
index d5a5f020810a..ec318bf434a6 100644
--- a/drivers/char/ipmi/ipmi_devintf.c
+++ b/drivers/char/ipmi/ipmi_devintf.c
@@ -810,6 +810,7 @@ static long compat_ipmi_ioctl(struct file *filep, unsigned int cmd,
                 struct ipmi_recv   __user *precv64;
                 struct ipmi_recv   recv64;
 
+                memset(&recv64, 0, sizeof(recv64));
                 if (get_compat_ipmi_recv(&recv64, compat_ptr(arg)))
                         return -EFAULT;