diff options
| author | Halil Pasic <pasic@linux.ibm.com> | 2018-09-26 18:48:29 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-12-13 09:21:36 +0100 |
| commit | e2ae7fd4c18b7fe0640cbf721afd3ca937f5ce09 (patch) | |
| tree | ee689fd289f1e1c30ac74676e57cdda3c7971937 /drivers/gpio | |
| parent | 92c01d8f4ae879b9e5dac1a3e490f2e2bebf3b00 (diff) | |
virtio/s390: avoid race on vcdev->config
commit 2448a299ec416a80f699940a86f4a6d9a4f643b1 upstream.
Currently we have a race on vcdev->config in virtio_ccw_get_config() and
in virtio_ccw_set_config().
This normally does not cause problems, as these are usually infrequent
operations. However, for some devices writing to/reading from the config
space can be triggered through sysfs attributes. For these, userspace can
force the race by increasing the frequency.
Signed-off-by: Halil Pasic <pasic@linux.ibm.com>
Cc: stable@vger.kernel.org
Message-Id: <20180925121309.58524-2-pasic@linux.ibm.com>
Signed-off-by: Cornelia Huck <cohuck@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/gpio')
0 files changed, 0 insertions, 0 deletions