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| author | Jason Wang <jasowang@redhat.com> | 2017-12-08 12:02:30 +0800 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2017-12-08 10:44:27 -0500 |
| commit | 124da8f6118bce3d9aeb5c6f5395ed131141aad5 (patch) | |
| tree | 283a91e5edd6c77ff244976cb1d3d479b664cc26 /net | |
| parent | 66c5c5b5668281a898c7882d64ee22694fdd1d88 (diff) | |
| download | linux-stable-124da8f6118bce3d9aeb5c6f5395ed131141aad5.tar.gz linux-stable-124da8f6118bce3d9aeb5c6f5395ed131141aad5.tar.bz2 linux-stable-124da8f6118bce3d9aeb5c6f5395ed131141aad5.zip | |
tuntap: fix possible deadlock when fail to register netdev
Private destructor could be called when register_netdev() fail with
rtnl lock held. This will lead deadlock in tun_free_netdev() who tries
to hold rtnl_lock. Fixing this by switching to use spinlock to
synchronize.
Fixes: 96f84061620c ("tun: add eBPF based queue selection method")
Reported-by: Eric Dumazet <eric.dumazet@gmail.com>
Cc: Eric Dumazet <eric.dumazet@gmail.com>
Cc: Willem de Bruijn <willemb@google.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net')
0 files changed, 0 insertions, 0 deletions