Re: [patch v2] ipmi: info leak in compat_ipmi_ioctl()

From: Corey Minyard
Date: Fri May 31 2013 - 08:58:51 EST


On 05/31/2013 07:46 AM, Dan Carpenter wrote:
On x86_64 there is a 4 byte hole between ->recv_type and ->addr.

Got it, in my tree now. Thanks.


Signed-off-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx>
---
v2: fixed the changelog a little. Also added LKML because the
openipmi is a moderated list (and the moderator thought my email was
spam).

I apologize, the list gets a lot of spam, and I must have made a mistake.

-corey


diff --git a/drivers/char/ipmi/ipmi_devintf.c b/drivers/char/ipmi/ipmi_devintf.c
index 9eb360f..8e306ac 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;

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