[PATCH 1/4] ipmi: info leak in compat_ipmi_ioctl()

From: minyard
Date: Wed Sep 04 2013 - 11:41:48 EST


From: Dan Carpenter <dan.carpenter@xxxxxxxxxx>

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

Signed-off-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx>
---
drivers/char/ipmi/ipmi_devintf.c | 1 +
1 file changed, 1 insertion(+)

diff --git a/drivers/char/ipmi/ipmi_devintf.c b/drivers/char/ipmi/ipmi_devintf.c
index d5a5f02..ec318bf 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;

--
1.7.9.5

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