[Lognorm] Memory Leak in liblognorm?
Champ Clark III
cclark at quadrantsec.com
Mon Jul 15 21:06:03 CEST 2013
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Hello,
So - I've stripped down the code a good bit to see if I can't isolate
where I'm going wrong. Below is what I got:
- --<snip>--
str = es_newStrFromCStr(syslog_msg, strlen(syslog_msg));
ln_normalize(ctx, str, &lnevent);
if(lnevent != NULL) {
es_emptyStr(str);
ee_fmtEventToRFC5424(lnevent, &str);
}
free(cstr);
es_deleteStr(str);
ee_deleteEvent(lnevent);
}
- --<snip>--
It appears as soon as I add the "ee_fmtEventToRFC5424", valgrind starts
to report the following:
==21979== 69,872 bytes in 614 blocks are definitely lost in loss record
52 of 54
==21979== at 0x4C2B6CD: malloc (in
/usr/lib/valgrind/vgpreload_memcheck-amd64-linux.so)
==21979== by 0x5457CD9: es_newStr (string.c:105)
==21979== by 0x5457D0E: es_newStrFromCStr (string.c:125)
==21979== by 0x40C167: sagan_normalize_liblognorm
(sagan-liblognorm.c:103)
==21979== by 0x41427F: Sagan_Blacklist (sagan-blacklist.c:167)
==21979== by 0x40BC07: Sagan_Processor (sagan-processor.c:123)
==21979== by 0x595EE99: start_thread (pthread_create.c:308)
If I remove the line, that goes away. Any thoughts?
Thanks for your time.
- --
- - Quadrant Information Security
Champ Clark III
o: 800.538.9357 x 101
c: 850.443.2440
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