Date: Mon, 13 Mar 2017 15:32:40 +0000 From: bugzilla-noreply@freebsd.org To: freebsd-bugs@FreeBSD.org Subject: [Bug 217760] [patch] [bsnmpd] bsnmpd coredumps on first request Message-ID: <bug-217760-8@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=217760 Bug ID: 217760 Summary: [patch] [bsnmpd] bsnmpd coredumps on first request Product: Base System Version: 11.0-STABLE Hardware: Any OS: Any Status: New Keywords: patch Severity: Affects Some People Priority: --- Component: bin Assignee: freebsd-bugs@FreeBSD.org Reporter: eugen@freebsd.org Keywords: patch Created attachment 180780 --> https://bugs.freebsd.org/bugzilla/attachment.cgi?id=180780&action=edit properly initialize port->transport One of my 11.0-STABLE systems starts bsnmpd just fine but first request crashes it with sigsegv and core is generated. #0 snmpd_input (pi=0x2861ce98, tport=0x2861cc80) at /home/src/usr.sbin/bsnmpd/bsnmpd/../../../contrib/bsnmp/snmpd/main.c:1044 1044 ret = tport->transport->vtab->recv(tport, pi); (gdb) bt #0 snmpd_input (pi=0x2861ce98, tport=0x2861cc80) at /home/src/usr.sbin/bsnmpd/bsnmpd/../../../contrib/bsnmp/snmpd/main.c:1044 #1 0x0805f36c in udp_input (fd=8, udata=0x2861cc80) at /home/src/usr.sbin/bsnmpd/bsnmpd/../../../contrib/bsnmp/snmpd/trans_udp.c:98 #2 0x0804e116 in input (fd=8, mask=1, uap=0x28621080) at /home/src/usr.sbin/bsnmpd/bsnmpd/../../../contrib/bsnmp/snmpd/main.c:900 #3 0x2809b9a7 in poll_dispatch (wait=1) at /home/src/contrib/libbegemot/rpoll.c:614 #4 0x0804f9c5 in main (argc=0, argv=0xbfbfee78) at /home/src/usr.sbin/bsnmpd/bsnmpd/../../../contrib/bsnmp/snmpd/main.c:1714 Current language: auto; currently minimal (gdb) p tport->transport $1 = (struct transport *) 0x0 On line patch fixing the problem is attached. The problem manifests when bsnmpd.conf has several begemotSnmpdPortStatus.* lines for distinct IP addresses and addresses are unsorted, for example: # open standard SNMP ports #begemotSnmpdPortStatus.0.0.0.0.161 = 1 begemotSnmpdPortStatus.[192.168.1.6].161 = 1 begemotSnmpdPortStatus.127.0.0.1.161 = 1 -- You are receiving this mail because: You are the assignee for the bug.help
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