Michael S. Tsirkin f0213f63e1 vhost: validate vhost_get_vq_desc return value
[ Upstream commit a39ee449f96a2cd44ce056d8a0a112211a9b1a1f ]

vhost fails to validate negative error code
from vhost_get_vq_desc causing
a crash: we are using -EFAULT which is 0xfffffff2
as vector size, which exceeds the allocated size.

The code in question was introduced in commit
8dd014adfea6f173c1ef6378f7e5e7924866c923
    vhost-net: mergeable buffers support

CVE-2014-0055

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-04-14 06:47:21 -07:00
..
2013-11-19 15:53:02 -05:00
2014-04-03 12:02:37 -07:00
2014-02-22 13:34:45 -08:00
2014-02-13 13:55:46 -08:00
2014-02-06 11:34:00 -08:00
2014-04-03 12:02:37 -07:00
2013-12-10 08:48:15 +01:00