From: Dan Carpenter <dan.carpenter@oracle.com>
Date: Fri, 23 Sep 2011 06:21:13 +0000 (+0300)
Subject: HID: hiddev: potential info leak in hiddev_ioctl()
X-Git-Tag: v3.2-rc1~187^2~1^2~4
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=9561f7faa45cb855b1ba83a4acf3f2ad3665e71f;p=pandora-kernel.git

HID: hiddev: potential info leak in hiddev_ioctl()

Smatch has a new check for Rosenberg type information leaks where
structs are copied to the user with uninitialized stack data in them.

In this case, the hiddev_devinfo struct has a two byte hole.

struct hiddev_devinfo {
        __u32                      bustype;              /*     0     4 */
        __u32                      busnum;               /*     4     4 */
        __u32                      devnum;               /*     8     4 */
        __u32                      ifnum;                /*    12     4 */
        __s16                      vendor;               /*    16     2 */
        __s16                      product;              /*    18     2 */
        __s16                      version;              /*    20     2 */

        /* XXX 2 bytes hole, try to pack */

        __u32                      num_applications;     /*    24     4 */

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
---

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