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(parent: 1fd66a7) | patch
tuntap: fix dividing by zero in ebpf queue selection
authorJason Wang <jasowang@redhat.com>
Thu, 9 May 2019 03:20:17 +0000 (23:20 -0400)
committerDavid S. Miller <davem@davemloft.net>
Thu, 9 May 2019 16:21:42 +0000 (09:21 -0700)
commit0c55aca849e175469922c5332888693a69b974cd
tree2c660d427f4ad30a9cbd7c1bc73be07d5ba1664etree | snapshot
parent1fd66a7128104eb874a6dfb20c7630901546b18dcommit | diff
tuntap: fix dividing by zero in ebpf queue selection

We need check if tun->numqueues is zero (e.g for the persist device)
before trying to use it for modular arithmetic.

Reported-by: Eric Dumazet <eric.dumazet@gmail.com>
Fixes: 5c57ce49c853f("tun: add eBPF based queue selection method")
Signed-off-by: Jason Wang <jasowang@redhat.com>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
drivers/net/tun.c diff | blob | history
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