Dan Carpenter fa83234f6a vhost/scsi: potential memory corruption ... commit 59c816c1f2 upstream. This code in vhost_scsi_make_tpg() is confusing because we limit "tpgt" to UINT_MAX but the data type of "tpg->tport_tpgt" and that is a u16. I looked at the context and it turns out that in vhost_scsi_set_endpoint(), "tpg->tport_tpgt" is used as an offset into the vs_tpg[] array which has VHOST_SCSI_MAX_TARGET (256) elements so anything higher than 255 then it is invalid. I have made that the limit now. In vhost_scsi_send_evt() we mask away values higher than 255, but now that the limit has changed, we don't need the mask. Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org> [ The affected function was renamed to vhost_scsi_make_tpg before the vulnerability was announced, I ported it to 3.10 stable and changed the code in function tcm_vhost_make_tpg] Signed-off-by: Wang Long <long.wanglong@huawei.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2015-10-01 12:07:34 +02:00
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Kconfig	Lots of virtio work which wasn't quite ready for last merge window. Plus	2013-05-02 14:14:04 -07:00
Makefile	Lots of virtio work which wasn't quite ready for last merge window. Plus	2013-05-02 14:14:04 -07:00
net.c	vhost: validate vhost_get_vq_desc return value	2014-04-14 06:42:18 -07:00
scsi.c	vhost/scsi: potential memory corruption	2015-10-01 12:07:34 +02:00
test.c	Lots of virtio work which wasn't quite ready for last merge window. Plus	2013-05-02 14:14:04 -07:00
test.h	vhost test module	2010-12-09 16:00:21 +02:00
vhost.c	vhost: actually track log eventfd file	2015-08-10 12:20:31 -07:00
vhost.h	vhost: check owner before we overwrite ubuf_info	2013-06-11 02:46:21 -07:00
vringh.c	Add missing module license tag to vring helpers.	2013-05-08 10:49:03 +09:30