diff options
Diffstat (limited to 'src/dhcpv6-ia.c')
| -rw-r--r-- | src/dhcpv6-ia.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/src/dhcpv6-ia.c b/src/dhcpv6-ia.c index de44581..1476e02 100644 --- a/src/dhcpv6-ia.c +++ b/src/dhcpv6-ia.c @@ -596,7 +596,10 @@ static void update(struct interface *iface) } struct dhcpv6_assignment *border = list_last_entry(&iface->ia_assignments, struct dhcpv6_assignment, head); - border->assigned = 1 << (64 - minprefix); + if (minprefix <= 32 || minprefix > 64) + border->assigned = 1U << (64 - minprefix); + else + border->assigned = 0; bool change = len != (int)iface->ia_addr_len; for (int i = 0; !change && i < len; ++i) |