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| author | Jason Wang <jasowang@redhat.com> | 2017-06-28 09:51:03 +0800 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2017-06-29 12:51:59 -0400 |
| commit | 713a98d90c5ea072c1bb00ef40617aee2cef2232 (patch) | |
| tree | db93479ad5f5a93653fd59862d45744d7472ed12 /kernel | |
| parent | e20bd60bf62a2448be873653c7febca1d4d73afc (diff) | |
virtio-net: serialize tx routine during reset
We don't hold any tx lock when trying to disable TX during reset, this
would lead a use after free since ndo_start_xmit() tries to access
the virtqueue which has already been freed. Fix this by using
netif_tx_disable() before freeing the vqs, this could make sure no tx
after vq freeing.
Reported-by: Jean-Philippe Menil <jpmenil@gmail.com>
Tested-by: Jean-Philippe Menil <jpmenil@gmail.com>
Fixes commit f600b6905015 ("virtio_net: Add XDP support")
Cc: John Fastabend <john.fastabend@gmail.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Acked-by: Robert McCabe <robert.mccabe@rockwellcollins.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'kernel')
0 files changed, 0 insertions, 0 deletions