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Don't get confused by UDP packets with a source port that is zero
author
Lennart Poettering
<lennart@poettering.net>
Thu, 11 Dec 2008 19:57:45 +0000
(20:57 +0100)
committer
Lennart Poettering
<lennart@poettering.net>
Fri, 12 Dec 2008 18:21:24 +0000
(19:21 +0100)
This is a fix for rhbz 475394.
Problem identified by Hugo Dias.
avahi-core/server.c
patch
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diff --git
a/avahi-core/server.c
b/avahi-core/server.c
index
c4980af
..
11ab6cf
100644
(file)
--- a/
avahi-core/server.c
+++ b/
avahi-core/server.c
@@
-898,6
+898,12
@@
static void dispatch_packet(AvahiServer *s, AvahiDnsPacket *p, const AvahiAddres
return;
}
+ if (port <= 0) {
+ /* This fixes RHBZ #475394 */
+ avahi_log_warn("Received packet from invalid source port.");
+ return;
+ }
+
if (avahi_address_is_ipv4_in_ipv6(src_address))
/* This is an IPv4 address encapsulated in IPv6, so let's ignore it. */
return;