View Issue Details
| ID | Project | Category | View Status | Date Submitted | Last Update |
|---|---|---|---|---|---|
| 0003453 | unreal | ircd | public | 2007-07-17 17:02 | 2007-11-20 20:51 |
| Reporter | Monk | Assigned To | syzop | ||
| Priority | normal | Severity | crash | Reproducibility | random |
| Status | resolved | Resolution | fixed | ||
| Platform | i386 | OS | Linux | OS Version | Debian 4 |
| Product Version | 3.2.6 | ||||
| Fixed in Version | 3.2.8 | ||||
| Summary | 0003453: Overflowed unzipbuf increase UNZIP_BUFFER_SIZE | ||||
| Description | Currently we suffer from some ddos attacks. May be related to the following: -------------------------------SNOTICES--------------------------------------- [7:45pm][07/17/2007] -HaPPy.MindForge.org- *** Notice -- Overflowed unzipbuf increase UNZIP_BUFFER_SIZE [7:45pm][07/17/2007] -HaPPy.MindForge.org- *** Notice -- Overflowed unzipbuf increase UNZIP_BUFFER_SIZE [7:45pm][07/17/2007] -HaPPy.MindForge.org- *** Notice -- inflate() error: * Are you perhaps linking zipped with non-zipped? * [7:45pm][07/17/2007] -HaPPy.MindForge.org- *** Notice -- Hint: link::options::zip should be the same at both sides (either both disabled or both enabled) [7:45pm][07/17/2007] -HaPPy.MindForge.org- *** Notice -- inflate() error(-3): invalid code lengths set [8:01pm][07/17/2007] -HaPPy.MindForge.org- *** Notice -- Overflowed unzipbuf increase UNZIP_BUFFER_SIZE [8:01pm][07/17/2007] -HaPPy.MindForge.org- *** Notice -- Overflowed unzipbuf increase UNZIP_BUFFER_SIZE [8:01pm][07/17/2007] -HaPPy.MindForge.org- *** Notice -- Fake direction from user haihappen in SJOIN from Hades.MindForge.org(CommunityOfPeople.MindForge.org) at #eMule-Spanish-2 [8:01pm][07/17/2007] -HaPPy.MindForge.org- *** Notice -- Overflowed unzipbuf increase UNZIP_BUFFER_SIZE [8:01pm][07/17/2007] -HaPPy.MindForge.org- *** Notice -- Overflowed unzipbuf increase UNZIP_BUFFER_SIZE [8:01pm][07/17/2007] -HaPPy.MindForge.org- *** Notice -- Overflowed unzipbuf increase UNZIP_BUFFER_SIZE [8:01pm][07/17/2007] -HaPPy.MindForge.org- *** Notice -- Overflowed unzipbuf increase UNZIP_BUFFER_SIZE ---------------------------------------------------------------------------- With similar outputs two servers crashed this morning in our network. A backtrace of both follows: --------------------------BACKTRACE1---------------------------------------- (gdb) bt full #0 0x4020cfcc in memcpy () from /lib/tls/libc.so.6 No symbol table info available. #1 0x080889d0 in unzip_packet (cptr=0x846e138, buffer=0x0, length=0xbfb4ced8) at zip.c:157 zin = (z_stream *) 0x82f9520 r = <value optimized out> p = <value optimized out> #2 0x08065e6e in dopacket (cptr=0x846e138, buffer=0x80ad4a0 "`ç\f\221", length=8108) at packet.c:195 ch1 = <value optimized out> ch2 = 0x81346ec "" acpt = <value optimized out> zipped = 1 #3 0x080580be in read_message (delay=0, listp=0x8147780) at s_bsd.c:1475 write_err = <value optimized out> cptr = (aClient *) 0x846e138 nfds = <value optimized out> wait = {tv_sec = 0, tv_usec = 0} read_set = {__fds_bits = {64, 0 <repeats 31 times>}} write_set = {__fds_bits = {0 <repeats 32 times>}} j = 1 delay2 = 0 res = 0 length = <value optimized out> fd = <value optimized out> i = <value optimized out> sockerr = <value optimized out> #4 0x08061508 in main (argc=0, argv=0xbfb4d1c4) at ircd.c:1576 uid = 65001 euid = 65001 gid = 104 egid = 104 delay = 1 corelim = {rlim_cur = 4294967295, rlim_max = 4294967295} nextfdlistcheck = 1184697975 cptr = <value optimized out> pri = <value optimized out> i = <value optimized out> j = <value optimized out> (gdb) ----------------------------------------------------------------------------- --------------------------BACKTRACE2----------------------------------------- (gdb) bt full #0 0xb7cdbccf in memcpy () from /lib/tls/libc.so.6 No symbol table info available. #1 0x0808d5ab in unzip_packet (cptr=0x8af4538, buffer=0x0, length=0xbf956a48) at zip.c:157 zin = (z_stream *) 0x8a1ee90 r = <value optimized out> p = <value optimized out> #2 0x08067068 in dopacket (cptr=0x8af4538, buffer=0x80b2fa0 "X,8Úe\033í²\215βqái¤\214.\214\004]p\2136\2306º0\022íƸÑ\205\221Ðê\225¬\203\037ÑR×èÂHJ®AC\vLà)ò\224\\F\215fÚh\227m´Ë\226\203\177üÇ\225Ô\205\221", length=-1) at packet.c:195 g = <value optimized out> ch1 = 0x8130a40 "rChanServ B victoriano : UNB arnold Remove all bans preventing you from entering a channelisrChanServ B victoriano : CLEAR Tells ChanServ to clear certain settings on a channelisrChanServ B"... ch2 = 0x81478b9 "GOUT This command will logout the selected nicknameisrChanServ B A-Y-S-E-- : TOPIC Manipulate the topic of the specified channelisrChanServ B A-Y-S-E-- : INFO Lists information ab"... acpt = <value optimized out> zipped = 1 #3 0x0805859a in read_message (delay=0, listp=0x815ee20) at s_bsd.c:1475 write_err = <value optimized out> cptr = (aClient *) 0x8af4538 nfds = <value optimized out> wait = {tv_sec = 0, tv_usec = 0} read_set = {__fds_bits = {0, 0, 1024, 0 <repeats 125 times>}} write_set = {__fds_bits = {0, 0, 1024, 0 <repeats 125 times>}} j = <value optimized out> delay2 = 0 res = 0 length = 8192 fd = 137108248 i = <value optimized out> sockerr = <value optimized out> #4 0x080626c5 in main (argc=Cannot access memory at address 0x78f080c ) at ircd.c:1576 type = <value optimized out> result = <value optimized out> uid = 2525 euid = 2525 gid = 10002 egid = 10002 delay = <value optimized out> corelim = {rlim_cur = 4294967295, rlim_max = 4294967295} nextfdlistcheck = 1184695293 alllasttime = 0 (gdb) ------------------------------------------------------------------------------ And before the question pops up: Yes all servers are properly configured with zip-links and the whole network has been running stable on 3.2.6 for months now ;) Best regards, Monk | ||||
| Tags | No tags attached. | ||||
| 3rd party modules | |||||
| Date Modified | Username | Field | Change |
|---|---|---|---|
| 2007-07-17 17:02 | Monk | New Issue | |
| 2007-07-19 08:20 |
|
Status | new => acknowledged |
| 2007-07-19 08:21 |
|
Relationship added | child of 0003454 |
| 2007-11-20 20:51 | syzop | QA | => Not touched yet by developer |
| 2007-11-20 20:51 | syzop | U4: Need for upstream patch | => No need for upstream InspIRCd patch |
| 2007-11-20 20:51 | syzop | Status | acknowledged => resolved |
| 2007-11-20 20:51 | syzop | Fixed in Version | => 3.2.8 |
| 2007-11-20 20:51 | syzop | Resolution | open => fixed |
| 2007-11-20 20:51 | syzop | Assigned To | => syzop |
| 2007-11-20 20:51 | syzop | Note Added: 0014816 |
