[Snort-devel] Snort exited on signal 6

Joel Esler jesler at ...402...
Thu Sep 12 11:41:03 EDT 2013


Signal 6 is from a kill -ABRT.  That is not within Snort's control.

--
Joel Esler
Senior Research Engineer, VRT
OpenSource Community Manager
Sourcefire

On Sep 12, 2013, at 3:50 AM, Mike <gmm at ...3433...> wrote:

> Hi Reinoud,
> 
> Thank you for your tips.
> 
> Here is backtrace.
> 
> gdb /usr/local/bin/snort
> 
> GNU gdb 6.1.1 [FreeBSD]
> Copyright 2004 Free Software Foundation, Inc.
> GDB is free software, covered by the GNU General Public License, and you are
> welcome to change it and/or distribute copies of it under certain conditions.
> Type "show copying" to see the conditions.
> There is absolutely no warranty for GDB.  Type "show warranty" for details.
> This GDB was configured as "amd64-marcel-freebsd"...
> 
> (gdb) set args -q -u snort -g snort -c /usr/local/etc/snort/snort_bce1.conf -i bce1
> (gdb) run
> Starting program: /usr/local/bin/snort -q -u snort -g snort -c /usr/local/etc/snort/snort_bce1.conf -i bce1
> [New LWP 100119]
> [New Thread 802007400 (LWP 100119/snort)]
> [New Thread 802008400 (LWP 100637/snort)]
> Assertion failed: (b < HTTP_BUFFER_MAX && buf), function SetHttpBufferEncoding, file ../../src/detection_util.h, line 142.
> 
> Program received signal SIGABRT, Aborted.
> [Switching to Thread 802007400 (LWP 100119/snort)]
> 0x0000000801cc340c in thr_kill () from /lib/libc.so.7
> (gdb) bt
> #0  0x0000000801cc340c in thr_kill () from /lib/libc.so.7
> #1  0x0000000801d5fcc3 in abort () from /lib/libc.so.7
> #2  0x0000000801d44c5d in __assert () from /lib/libc.so.7
> #3  0x000000000049eeba in SetHttpBufferEncoding (b=HTTP_BUFFER_RAW_COOKIE, buf=0x0, len=0, enc=0) at detection_util.h:142
> #4  0x000000000049ef5e in SetHttpBuffer (b=HTTP_BUFFER_RAW_COOKIE, buf=0x0, len=0) at detection_util.h:152
> #5  0x000000000049e0b4 in SnortHttpInspect (GlobalConf=0x802018fc0, p=0x802f2e400) at snort_httpinspect.c:3762
> #6  0x0000000000496012 in HttpInspect (p=0x802f2e400, context=0x0) at spp_httpinspect.c:209
> #7  0x000000000043ff76 in Preprocess (p=0x802f2e400) at detect.c:173
> #8  0x00000000004cfa2e in _flush_to_seq (tcpssn=0x8068397a0, st=0x8068398f8, bytes=15953, p=0xebd1c0, sip=0xebdaf0, dip=0xebdadc, sp=62447, dp=20480, dir=128)
>     at snort_stream5_tcp.c:3875
> #9  0x00000000004cf2f4 in flush_to_seq (tcpssn=0x8068397a0, st=0x8068398f8, bytes=15953, p=0xebd1c0, sip=0xebdaf0, dip=0xebdadc, sp=62447, dp=20480, dir=128)
>     at snort_stream5_tcp.c:3950
> #10 0x00000000004cfe84 in flush_ackd (tcpssn=0x8068397a0, st=0x8068398f8, p=0xebd1c0, sip=0xebdaf0, dip=0xebdadc, sp=62447, dp=20480, dir=128) at snort_stream5_tcp.c:4016
> #11 0x00000000004dc98f in CheckFlushPolicyOnAck (tcpssn=0x8068397a0, talker=0x8068398f8, listener=0x8068397a0, tdb=0x7fffffffd2e0, p=0xebd1c0) at snort_stream5_tcp.c:8886
> #12 0x00000000004db526 in ProcessTcp (lwssn=0x8197ef170, p=0xebd1c0, tdb=0x7fffffffd2e0, s5TcpPolicy=0x812007000) at snort_stream5_tcp.c:8557
> #13 0x00000000004d1cc1 in Stream5ProcessTcp (p=0xebd1c0, lwssn=0x8197ef170, s5TcpPolicy=0x812007000, skey=0x7fffffffd440) at snort_stream5_tcp.c:5088
> #14 0x00000000004ac5b1 in Stream5Process (p=0xebd1c0, context=0x0) at spp_stream5.c:1694
> #15 0x00000000004400f7 in Preprocess (p=0xebd1c0) at detect.c:215
> #16 0x000000000043345b in ProcessPacket (p=0xebd1c0, pkthdr=0x7fffffffd640, pkt=0x818f7b17a "", ft=0x0) at snort.c:1846
> #17 0x0000000000432ef5 in PacketCallback (user=0x0, pkthdr=0x7fffffffd640, pkt=0x818f7b17a "") at snort.c:1685
> #18 0x00000000005155d4 in pcap_process_loop ()
> #19 0x0000000801615716 in pcap_create_interface () from /lib/libpcap.so.8
> #20 0x000000000051597a in pcap_daq_acquire ()
> #21 0x0000000000457078 in DAQ_Acquire (max=0, callback=0x432d68 <PacketCallback>, user=0x0) at sfdaq.c:539
> #22 0x0000000000435656 in PacketLoop () at snort.c:3169
> #23 0x0000000000431b39 in SnortMain (argc=10, argv=0x7fffffffd928) at snort.c:890
> #24 0x00000000004319d0 in main (argc=10, argv=0x7fffffffd928) at snort.c:797
> (gdb)
> 
> 
> Thanks, Mike.
> 
> 
> 
> Can you start snort in gdb? Like gdb /usr/local/bin/snort. 
> Then: set args ......
> The arguments you give snort to startup? Then type run. When the assert happens can you type bt? Meaning backtrace? That would help. It might just be that the snort developers already have enough info with your current mail though. Just trying to help. Thanks, Reinoud
> 
> 
> 
> -------- Original message --------
> From: Mike <gmm at ...3433...> 
> Date: 09/11/2013 11:02 PM (GMT-08:00) 
> To: snort-devel at lists.sourceforge.net 
> Subject: [Snort-devel] Snort exited on signal 6 
> 
> 
> Hi everyone,
> 
> in my new setup Snort exited on signal 6 shortly after start
> 
> Sep 11 17:26:41 snort kernel: pid 1663 (snort), uid 40000: exited on signal 6
> 
> Here is some information in /tmp/snort.debug:
> 
> Assertion failed: (b < HTTP_BUFFER_MAX && buf), function SetHttpBufferEncoding, file ../../src/detection_util.h, line 142.
> 
> snort -V
> 
>    ,,_     -*> Snort! <*-
>   o"  )~   Version 2.9.5.3 GRE (Build 132) FreeBSD
>    ''''    By Martin Roesch & The Snort Team: http://www.snort.org/snort/snort-team
>            Copyright (C) 1998-2013 Sourcefire, Inc., et al.
>            Using libpcap version 1.4.0
>            Using PCRE version: 8.33 2013-05-28
>            Using ZLIB version: 1.2.7
> 
> Should I provide some additional info?
> 
> Mike.
> 
> 
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