dhcpcd-discuss

Hi,

I am running dhcpcd 6.4.3 on a BeagleBone Black with FreeBSD.
Configuration is IPv6 only, prefix delegation, no router solicitation.

dhcpcd crashes on trying to write a 16-bit value to a byte aligned address.

dhcpcd[2251]: ng0: soliciting a DHCPv6 lease
dhcpcd[2251]: ng0: ADV ::/56 from fe80::WWWW:XXXX:YYYY:ZZZZ
Bus error (core dumped)

(gdb) p u16
$1 = (uint16_t *) 0x2083e1d9


Attached patch to use u16 as an unsigned integer instead of a pointer
and use memcpy to set 16-bit values in dhcp6_makemessage.
Changes for trunk dhcp6.c 222cd9cc1317c054d425b680b747bc5b474f99f6.


Thanks,
Guy

Attachment: dhcp6_unaligned_access.patch
Description: Binary data