In order to reach that INSIST(0) code, type.sa.sa_family needs to be something
other than AF_INET, AF_INET6 or AF_UNIX:
void
isc_netaddr_fromsockaddr(isc_netaddr_t *t, const isc_sockaddr_t *s) {
int family = s->type.sa.sa_family;
t->family = family;
switch (family) {
case AF_INET:
t->type.in = s->type.sin.sin_addr;
t->zone = 0;
break;
case AF_INET6:
memmove(&t->type.in6, &s->type.sin6.sin6_addr, 16);
#ifdef ISC_PLATFORM_HAVESCOPEID
t->zone = s->type.sin6.sin6_scope_id;
#else
t->zone = 0;
#endif
break;
#ifdef ISC_PLATFORM_HAVESYSUNH
case AF_UNIX:
memmove(t->type.un, s->type.sunix.sun_path, sizeof(t->type.un));
t->zone = 0;
break;
#endif
default:
INSIST(0);
}
}
>From the crash file:
(gdb) frame 4
#4 0x00007f2e236f1518 in isc_netaddr_fromsockaddr (t=t@entry=0x7f2e1dc06720,
s=s@entry=0x7f2e0b046590) at ../../../lib/isc/netaddr.c:358
358 in ../../../lib/isc/netaddr.c
(gdb) p s->type.sa.sa_family
$9 = 57054
(gdb)
That's odd, that looks like the port number:
(gdb) p s->type.sin
$13 = {sin_family = 57054, sin_port = 57054, sin_addr = {s_addr = <redacted>},
sin_zero = "\336\336\336\336\336\336\336", <incomplete sequence \336>}
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https://bugs.launchpad.net/bugs/1736943
Title:
9.10.3.dfsg.P4-8ubuntu1.9 - keep on crashing on Ubuntu 16.04
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