Greg Kurz 8a8c9588c2 9p/trans_virtio: discard zero-length reply ...

commit 26d99834f89e76514076d9cd06f61e56e6a509b8 upstream.

When a 9p request is successfully flushed, the server is expected to just
mark it as used without sending a 9p reply (ie, without writing data into
the buffer). In this case, virtqueue_get_buf() will return len == 0 and
we must not report a REQ_STATUS_RCVD status to the client, otherwise the
client will erroneously assume the request has not been flushed.

Cc: stable@vger.kernel.org
Signed-off-by: Greg Kurz <groug@kaod.org>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

2018-02-22 15:42:30 +01:00

..

client.c

net/9p: Switch to wait_event_killable()

2017-11-30 08:40:49 +00:00

error.c

hlist: drop the node parameter from iterators

2013-02-27 19:10:24 -08:00

Kconfig

xen/9pfs: select CONFIG_XEN_XENBUS_FRONTEND

2017-05-02 11:14:36 +02:00

Makefile

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

mod.c

9p: Reduce object size with CONFIG_NET_9P_DEBUG

2012-01-05 10:51:44 -06:00

protocol.c

net/9p: switch to copy_from_iter_full()

2017-04-21 13:57:22 -04:00

protocol.h

net/9p: Convert net/9p protocol dumps to tracepoints

2011-10-24 11:13:12 -05:00

trans_common.c

net/9p: remove (now-)unused helpers

2015-04-11 22:28:29 -04:00

trans_common.h

net/9p: remove (now-)unused helpers

2015-04-11 22:28:29 -04:00

trans_fd.c

9p: Fix missing commas in mount options

2017-11-30 08:40:49 +00:00

trans_rdma.c

9p: Implement show_options

2017-07-11 06:08:58 -04:00

trans_virtio.c

9p/trans_virtio: discard zero-length reply

2018-02-22 15:42:30 +01:00

trans_xen.c

net/9p: Switch to wait_event_killable()

2017-11-30 08:40:49 +00:00

util.c

net/9p: convert to idr_alloc()

2013-02-27 19:10:20 -08:00