Jason Wang 011942d12c vhost: scsi: add weight support ...

commit c1ea02f15a upstream.

This patch will check the weight and exit the loop if we exceeds the
weight. This is useful for preventing scsi kthread from hogging cpu
which is guest triggerable.

This addresses CVE-2019-3900.

Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Stefan Hajnoczi <stefanha@redhat.com>
Fixes: 057cbf49a1 ("tcm_vhost: Initial merge for vhost level target fabric driver")
Signed-off-by: Jason Wang <jasowang@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Balbir Singh <sblbir@amzn.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

2019-07-10 09:54:42 +02:00

..

Kconfig

…

Kconfig.vringh

…

Makefile

…

net.c

vhost_net: fix possible infinite loop

2019-07-10 09:54:42 +02:00

scsi.c

vhost: scsi: add weight support

2019-07-10 09:54:42 +02:00

test.c

…

test.h

…

vhost.c

vhost: introduce vhost_exceeds_weight()

2019-07-10 09:54:42 +02:00

vhost.h

vhost: introduce vhost_exceeds_weight()

2019-07-10 09:54:42 +02:00

vringh.c

…

vsock.c

vhost: vsock: add weight support

2019-07-10 09:54:42 +02:00