tuntap: fix dividing by zero in ebpf queue selection

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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: 96f84061620c6("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>

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Jason Wang 2019-05-08 23:20:17 -04:00 • committed by David S. Miller

parent 68a5cde9f0

commit a35d310f03

1 changed files with 6 additions and 1 deletions

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7

drivers/net/tun.c

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