udhcpc6 segfault

[Pramod Bhagwat]

Hi,
I am using busybox-1.20.2 and cross compiled this for arm and built
the busybox binary statically.
As soon as i start the udhcpc6 client i am getting the segmentation fault.

After going through the source code of
busybox-1.20.2/networking/udhcp/d6_dhcpc.c file and following
function:

static char **fill_envp(struct d6_packet *packet)
{
        char **envp, **curr;

        client6_data.env_ptr = NULL;
        client6_data.env_idx = 0;

        *new_env() = xasprintf("interface=%s", client_config.interface);

        if (packet)
                option_to_env(packet->d6_options, packet->d6_options +
sizeof(packet->d6_options));

        envp = curr = client6_data.env_ptr;
        while (*curr)
                putenv(*curr++);

        return envp;
}

In the above code while accessing curr pointer it is giving the
segmentation fault.
But client6_data.env_ptr is not NULL.

Please let me know if anybody has already tested udhcpc6 on arm.
For udhcpc6 do  i need to enable any specific build option in the Busybox?

Warm Regards,
pramod