Messages in this thread | | | From | Jason Wang <> | Subject | [PATCH net V3 0/3] Fix various issue of vhost | Date | Thu, 13 Dec 2018 10:53:36 +0800 |
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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
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