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[tor-commits] [tor/master] get_interface_address6_list(): Bring back a return code check
commit 3ea834ce0a63f275fd806f9ebeec64a2bbcd1b55
Author: Fabian Keil <fk@xxxxxxxxxxxxx>
Date: Mon Sep 28 16:57:07 2015 +0200
get_interface_address6_list(): Bring back a return code check
... that was removed by 31eb486c46 which first appeared in
0.2.7.3-rc.
If tor is running in a ElectroBSD (or FreeBSD) jail it can't
get any IP addresses that aren't assigned to the jail by
looking at the interfaces and (by design) the
get_interface_address6_via_udp_socket_hack() fallback doesn't
work either.
The missing return code check resulted in tor_addr_is_internal()
complaining about a "non-IP address of type 49", due to reading
uninitialised memory.
Fixes #17173.
---
src/common/address.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/src/common/address.c b/src/common/address.c
index 163db59..fc85f8e 100644
--- a/src/common/address.c
+++ b/src/common/address.c
@@ -1711,7 +1711,8 @@ MOCK_IMPL(smartlist_t *,get_interface_address6_list,(int severity,
}
/* Okay, the smart way is out. */
- get_interface_address6_via_udp_socket_hack(severity,family,&addr);
+ if (get_interface_address6_via_udp_socket_hack(severity,family,&addr))
+ return smartlist_new();
if (!include_internal && tor_addr_is_internal(&addr, 0)) {
return smartlist_new();
} else {
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