patch for netinet crash

Jonathon McKitrick j_mckitrick at yahoo.com
Fri Jan 7 04:30:59 PST 2005


There is a race condition that seems to be affecting only me, and apparently only when I
run puTTY as a client.  Here's a patch that fixes it, in addition to the one Matt
submitted.

===================================================================
RCS file: /home/dcvs/src/sys/netinet/ip_input.c,v
retrieving revision 1.43
diff -u -r1.43 ip_input.c
--- ip_input.c  29 Dec 2004 03:26:42 -0000      1.43
+++ ip_input.c  5 Jan 2005 21:22:40 -0000
@@ -742,6 +742,8 @@
         */
        if (m->m_pkthdr.rcvif->if_flags & IFF_BROADCAST) {
                TAILQ_FOREACH(ifa, &m->m_pkthdr.rcvif->if_addrhead, ifa_link) {
+                       if (ifa == NULL)
+                               continue;
                        if (ifa->ifa_addr == NULL) /* shutdown/startup race */
                                continue;
                        if (ifa->ifa_addr->sa_family != AF_INET)



		
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