r0 = socket$inet(0x2, 0xa, 0x0)
ioctl$sock_inet_SIOCGIFNETMASK(r0, 0x8917, &(0x7f00000001c0)={'syz_tun\x00', {0x2, 0x0, @empty}})
r1 = socket$inet(0x2, 0xa, 0x0)
ioctl$sock_inet_SIOCGIFNETMASK(r1, 0x8918, &(0x7f00000001c0)={'syz_tun\x00', {0x2, 0x0, @empty}})