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. Changs from V1: - fix user-ater-free in vosck patch Jason Wang (4): vhost: introduce vhost_exceeds_weight() vhost_net: fix possible infinite loop vhost: vsock: add weight support vhost: scsi: add weight support drivers/vhost/net.c | 41 ++++++++++++++--------------------------- drivers/vhost/scsi.c | 21 ++++++++++++++------- drivers/vhost/vhost.c | 20 +++++++++++++++++++- drivers/vhost/vhost.h | 5 ++++- drivers/vhost/vsock.c | 28 +++++++++++++++++++++------- 5 files changed, 72 insertions(+), 43 deletions(-) -- 1.8.3.1
