projects
/
oweals
/
tinc.git
/ commitdiff
commit
grep
author
committer
pickaxe
?
search:
re
summary
|
shortlog
|
log
|
commit
| commitdiff |
tree
raw
|
patch
| inline |
side by side
(parent:
9527f4f
)
Fix NULL pointer dereference in send_udp_info
author
thorkill
<thkr@hannover.ccc.de>
Thu, 4 May 2017 21:44:56 +0000
(23:44 +0200)
committer
Guus Sliepen
<guus@tinc-vpn.org>
Sat, 6 May 2017 10:38:45 +0000
(12:38 +0200)
src/protocol_misc.c
patch
|
blob
|
history
diff --git
a/src/protocol_misc.c
b/src/protocol_misc.c
index 95bd322e72487e3ea506f670d64d22f7f11d0a05..5bbdc6c7bdaf14699930c6268d0cb2f620ef4e43 100644
(file)
--- a/
src/protocol_misc.c
+++ b/
src/protocol_misc.c
@@
-194,6
+194,11
@@
bool send_udp_info(node_t *from, node_t *to) {
farther than the static relay. */
to = (to->via == myself) ? to->nexthop : to->via;
+ if (to == NULL) {
+ logger(DEBUG_ALWAYS, LOG_ERR, "Something went wrong when selecting relay - possible fake UDP_INFO");
+ return false;
+ }
+
/* Skip cases where sending UDP info messages doesn't make sense.
This is done here in order to avoid repeating the same logic in multiple callsites. */