Re: [PATCH net V3 0/3] Fix various issue of vhost
On Thu, Dec 13, 2018 at 10:53:36AM +0800, Jason Wang wrote: > Hi: > > This series tries to fix various issues of vhost: > > - Patch 1 adds a missing write barrier between used idx updating and > logging. > - Patch 2-3 brings back the protection of device IOTLB through vq > mutex, this fixes possible use after free in device IOTLB entries. > > Please consider them for -stable. Acked-by: Michael S. Tsirkin > Thanks > > Changes from V2: > - drop dirty page fix and make it for net-next > Changes from V1: > - silent compiler warning for 32bit. > - use mutex_trylock() on slowpath instead of mutex_lock() even on fast > path. > > Jason Wang (3): > vhost: make sure used idx is seen before log in vhost_add_used_n() > vhost_net: switch to use mutex_trylock() in vhost_net_busy_poll() > Revert "net: vhost: lock the vqs one by one" > > drivers/vhost/net.c | 8 +++- > drivers/vhost/vhost.c | 23 +++ > 2 files changed, 26 insertions(+), 5 deletions(-) > > -- > 2.17.1 ___ Virtualization mailing list Virtualization@lists.linux-foundation.org https://lists.linuxfoundation.org/mailman/listinfo/virtualization
[PATCH net V3 0/3] Fix various issue of vhost
Hi: This series tries to fix various issues of vhost: - Patch 1 adds a missing write barrier between used idx updating and logging. - Patch 2-3 brings back the protection of device IOTLB through vq mutex, this fixes possible use after free in device IOTLB entries. Please consider them for -stable. Thanks Changes from V2: - drop dirty page fix and make it for net-next Changes from V1: - silent compiler warning for 32bit. - use mutex_trylock() on slowpath instead of mutex_lock() even on fast path. Jason Wang (3): vhost: make sure used idx is seen before log in vhost_add_used_n() vhost_net: switch to use mutex_trylock() in vhost_net_busy_poll() Revert "net: vhost: lock the vqs one by one" drivers/vhost/net.c | 8 +++- drivers/vhost/vhost.c | 23 +++ 2 files changed, 26 insertions(+), 5 deletions(-) -- 2.17.1 ___ Virtualization mailing list Virtualization@lists.linux-foundation.org https://lists.linuxfoundation.org/mailman/listinfo/virtualization
Re: [PATCH net V3 0/3] Fix various issue of vhost
From: Jason Wang Date: Thu, 13 Dec 2018 10:53:36 +0800 > This series tries to fix various issues of vhost: > > - Patch 1 adds a missing write barrier between used idx updating and > logging. > - Patch 2-3 brings back the protection of device IOTLB through vq > mutex, this fixes possible use after free in device IOTLB entries. > > Please consider them for -stable. > > Thanks > > Changes from V2: > - drop dirty page fix and make it for net-next > Changes from V1: > - silent compiler warning for 32bit. > - use mutex_trylock() on slowpath instead of mutex_lock() even on fast > path. Series applied and queued up for -stable, thanks Jason. ___ Virtualization mailing list Virtualization@lists.linux-foundation.org https://lists.linuxfoundation.org/mailman/listinfo/virtualization
