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List:       syslog-ng
Subject:    [syslog-ng] [Bug 9] New: syslog-ng crashes when /etc/eventlog.conf
From:       bugzilla () www ! balabit ! com
Date:       2007-12-25 14:35:40
Message-ID: bug-9-3 () https ! bugzilla ! balabit ! com/
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https://bugzilla.balabit.com/show_bug.cgi?id=9

           Summary: syslog-ng crashes when /etc/eventlog.conf exists
           Product: syslog-ng
           Version: 2.0.x
          Platform: PC
               URL: http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=447105
        OS/Version: Linux
            Status: NEW
          Severity: major
          Priority: unspecified
         Component: syslog-ng
        AssignedTo: bazsi@balabit.hu
        ReportedBy: sasa@debian.org
Type of the Report: bug
   Estimated Hours: 0.0


From bugs.debian.org:

When /etc/eventlog.conf exists and contains "[hello]" (for example),
syslog-ng segfaults at start.

Here is the end of strace output:

uname({sys="Linux", node="naruto", ...}) = 0
brk(0)                                  = 0x8088000
brk(0x80a9000)                          = 0x80a9000
open("/etc/localtime", O_RDONLY)        = 3
fstat64(3, {st_mode=S_IFREG|0644, st_size=1082, ...}) = 0
fstat64(3, {st_mode=S_IFREG|0644, st_size=1082, ...}) = 0
mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1,
0) = 0xb7f7c000
read(3, "TZif\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\f\0\0\0\f\0"...,
4096) = 1082
close(3)                                = 0
munmap(0xb7f7c000, 4096)                = 0
rt_sigaction(SIGPIPE, {SIG_IGN}, NULL, 8) = 0
rt_sigaction(SIGHUP, {0x804aae0, [], 0}, NULL, 8) = 0
rt_sigaction(SIGTERM, {0x804aaf0, [], 0}, NULL, 8) = 0
rt_sigaction(SIGINT, {0x804aaf0, [], 0}, NULL, 8) = 0
rt_sigaction(SIGCHLD, {0x804ab00, [], 0}, NULL, 8) = 0
rt_sigaction(SIGSEGV, {0x804ab10, [], SA_ONESHOT}, NULL, 8) = 0
gettimeofday({1192688001, 803861}, NULL) = 0
open("/etc/eventlog.conf", O_RDONLY)    = 3
fstat64(3, {st_mode=S_IFREG|0644, st_size=8, ...}) = 0
mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1,
0) = 0xb7f7c000
read(3, "[hello]\n", 4096)              = 8
--- SIGSEGV (Segmentation fault) @ 0 (0) ---
kill(12421, SIGSEGV)                    = 0
sigreturn()                             = ? (mask now [])
--- SIGSEGV (Segmentation fault) @ 0 (0) ---
+++ killed by SIGSEGV +++
Process 12421 detached

I did not find any documentation about /etc/eventlog.conf file. I have
found this bug because such file was created by an unrelated
application.


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