Re: [PATCH V2 0/4] Prevent vhost kthread from hogging CPU

From: Jason Wang
Date: Wed May 22 2019 - 22:40:34 EST



On 2019/5/20 äå8:52, Michael S. Tsirkin wrote:
On Fri, May 17, 2019 at 12:29:48AM -0400, Jason Wang wrote:
Hi:

This series try to prevent a guest triggerable CPU hogging through
vhost kthread. This is done by introducing and checking the weight
after each requrest. The patch has been tested with reproducer of
vsock and virtio-net. Only compile test is done for vhost-scsi.

Please review.
This addresses CVE-2019-3900.
OK I think we should clean this code some more but given
it's a CVE fix maybe it's best to do as a patch on top.

Acked-by: Michael S. Tsirkin<mst@xxxxxxxxxx>

Dave do you want to merge this or should I?


According to David's last reply, it's better for you to merge I think.

Thanks