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IDProjectCategoryView StatusDate SubmittedLast Update
0003791unrealircdpublic2009-01-13 15:442009-01-18 13:25
Reporternullsystems 
Assigned To 
PrioritynormalSeveritycrashReproducibilityalways
StatusclosedResolutionno change required 
Platformx86OSSuSE LinuxOS Version10.3
Product Version3.2.7 
Target VersionFixed in Version3.2.8 
Summary0003791: unreal: line 134: 26071 Segmentation fault
DescriptionWhen trying to run unreal on this server with a known working config I get the above error. No log file is generated.

---------------------------------------------------------------
* Loading IRCd configuration ..
./unreal: line 134: 23244 Segmentation fault (core dumped) /srv/www/vhosts/x/Unreal3.2.7/src/ircd
Possible error encountered (IRCd seemingly not started)
=====================================================
Check above for possible errors, and this output of
ircd.log. If you cannot solve the problem, read
Unreal.nfo on where to get support
----------------------------------------------------------------

Backtrace Shows this :
=================== START HERE ======================
BACKTRACE:
Using host libthread_db library "/lib64/libthread_db.so.1".

warning: Can't read pathname for load map: Input/output error.
Core was generated by `/srv/www/vhosts/xxx/Unreal3.2.7/src/ircd'.
Program terminated with signal 11, Segmentation fault.
#0 0x0000000000435b62 in unreal_encodespace (s=0x0) at s_misc.c:1076
1076 for (i = s, o = buf; (*i) && (o < buf+509); i++)
#0 0x0000000000435b62 in unreal_encodespace (s=0x0) at s_misc.c:1076
#1 0x0000000000429503 in init_conf (rootconf=0x45b86c "unrealircd.conf", rehash=0) at s_conf.c:1563
#2 0x000000000041c252 in main (argc=0, argv=<value optimized out>) at ircd.c:1293

#0 0x0000000000435b62 in unreal_encodespace (s=0x0) at s_misc.c:1076
1076 for (i = s, o = buf; (*i) && (o < buf+509); i++)

0x727220 <backupbuf>: ""

#0 0x0000000000435b62 in unreal_encodespace (s=0x0) at s_misc.c:1076
buf = "Spamming_users_with_an_mIRC_trojan._Type_'/unload_-rs_newb'_to_remove_the_trojan.\000.asp?VName=TROJ%5F SOEX.A", '\0' <repeats 405 times>
i = 0x0
o = 0x70dba0 "Spamming_users_with_an_mIRC_trojan._Type_'/unload_-rs_newb'_to_remove_the_trojan."
#1 0x0000000000429503 in init_conf (rootconf=0x45b86c "unrealircd.conf", rehash=0) at s_conf.c:1563
No locals.
#2 0x000000000041c252 in main (argc=0, argv=<value optimized out>) at ircd.c:1293
type = <value optimized out>
result = <value optimized out>
p = 0x7fff76d18ed8 "\003@"
uid = 0
euid = 0
gid = 0
egid = 0
delay = <value optimized out>
corelim = {rlim_cur = 18446744073709551615, rlim_max = 18446744073709551615}
nextfdlistcheck = <value optimized out>
alllasttime = 0
GCC: gcc version 4.2.1 (SUSE Linux)
UNAME: Linux xxx 2.6.27.9rootserver-20081216a #1 SMP Tue Dec 16 02:29:13 EST 2008 x86_64 x86_64 x86_64 GNU/Linux
UNREAL: Unreal3.2.7 build 1.1.1.1.2.1.2.1.2.2234.2.676 2007/07/13 10:43:04
CORE: -rw------- 1 root root 2371584 Jan 13 15:20 core
=================== STOP HERE ======================
Steps To Reproduce./unreal start
Additional InformationTried as root, user and using ziplinks, ssl and other config options. All the same error.
TagsNo tags attached.
3rd party modulesNone
Attached Files

- Relationships

-  Notes
(0015650)
nullsystems (reporter)
2009-01-13 16:21

More forum updates and core files can be found here: http://forums.unrealircd.com/viewtopic.php?f=3&t=5879 [^]
(0015653)
nullsystems (reporter)
2009-01-13 21:27

Tried the code from 3.2.8rc1, this also produced the same error.
So I came up with my own hack
------
char *unreal_encodespace(char *s)
{
if (s != NULL) {
static char buf[512], *i, *o;
        for (i = s, o = buf; (*i) && (o < buf+509); i++)
        {
                if (*i == ' ')
                        *o++ = '_';
                else if (*i == '_')
                {
                        *o++ = '_';
                        *o++ = '_';
                }
                else
                        *o++ = *i;
        }
        *o = '\0';
        return buf;
}
}

This boots, but I cannot connect.
(0015659)
syzop (administrator)
2009-01-15 11:03

Could you post the './unreal backtrace' output for Unreal3.2.8-rc1 as well? (3.2.8-rc1 without modifications/hacks, of course ;p)
Thanks.
(0015662)
syzop (administrator)
2009-01-15 11:14

Also, IF possible, could I get a shell (user account, not root) on this machine to try to trace this? Then I would check it out line by line because it's quite odd and I haven't been able to trace it via the source code until now.

Naturally, I can understand if you cannot do that.

You can mail details to syzop@vulnscan.org
(0015671)
syzop (administrator)
2009-01-18 13:25

- Added note to release notes regarding Suse 10.3 on amd64 causing a crash
  on-boot. 0003725, #0003653, 0003791.

- Issue History
Date Modified Username Field Change
2009-01-13 15:44 nullsystems New Issue
2009-01-13 15:44 nullsystems 3rd party modules => None
2009-01-13 16:21 nullsystems Note Added: 0015650
2009-01-13 21:27 nullsystems Note Added: 0015653
2009-01-15 11:03 syzop Note Added: 0015659
2009-01-15 11:14 syzop Note Added: 0015662
2009-01-18 13:25 syzop QA => Not touched yet by developer
2009-01-18 13:25 syzop U4: Need for upstream patch => No need for upstream InspIRCd patch
2009-01-18 13:25 syzop Status new => closed
2009-01-18 13:25 syzop Note Added: 0015671
2009-01-18 13:25 syzop Resolution open => no change required
2009-01-18 13:25 syzop Fixed in Version => 3.2.8


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