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(parent: d1a0022) | 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)
commit63e4b6ed51c0d9b65a452d9ade681fb10b00aa1f
tree2c660d427f4ad30a9cbd7c1bc73be07d5ba1664etree | snapshot
parentd1a0022b736047da4ff78f0402c05abcc18916c4commit | 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: c21d7da761b04("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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