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From: Igor Genibel <[EMAIL PROTECTED]>
To: Debian Bug Tracking System <[EMAIL PROTECTED]>
Subject: eat all the available memory
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Date: Fri, 22 Jul 2005 19:50:57 +0200
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Package: proftpd
Severity: important
Hi Francesco,
We encounter a serious problem with proftpd since the -10 version on our
webhosting platform.
The -9 version does not have this bug.
We have machine in Sarge and we are quite frightened because of
potential security updates.
Thanks.
After few hours a process eat all the memory and then all the processes
are killed by the VM killer. He are some information:
proftpd.conf:
ServerType standalone
RequireValidShell off
DefaultRoot ~
MaxClientsPerUser 8
MaxClientsPerHost 16
MaxHostsPerUser 8
MaxInstances 100
# hide version
ServerIdent on ""
TransferLog /var/log/proftpd.log
TimeoutIdle 900
Umask 0072
# boost initial connection up
IdentLookups off
WtmpLog off
UseReverseDNS off
Bind 10.0.1.14
AllowOverwrite on
AllowStoreRestart on
ListOptions "-a"
# SSL
#TLSEngine on
#TLSRSACertificateFile /etc/proftpd-rsa.pem
#TLSLog /var/log/tls.log
[EMAIL PROTECTED]:~# ps auwxww | grep proftpd
root 12950 0.1 0.1 4688 1388 ? Ss 14:21 0:14 proftpd:
(accepting connections)
21340 11699 1.7 0.2 4872 2112 ? S 17:37 0:03 proftpd:
pakavadenn - 62.161.99.217: IDLE
cyrilb 11703 26.1 89.6 1370784 926096 ? R 17:38 0:37 proftpd:
cyrilb - 10.0.6.2: IDLE
ngs 11806 0.4 0.2 4872 2360 ? S 17:39 0:00 proftpd: ngs -
84.6.16.193: IDLE
root 11946 0.0 0.0 1540 496 pts/2 R+ 17:40 0:00 grep proftpd
[EMAIL PROTECTED]:~# strace -p 11703
Process 11703 attached - interrupt to quit
--- SIGSEGV (Segmentation fault) @ 0 (0) ---
fcntl64(4, F_SETLKW64, {type=F_WRLCK, whence=SEEK_CUR, start=16, len=520},
0x80d7a48) = 0
_llseek(4, 16, [16], SEEK_SET) = 0
write(4, "\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0"..., 520) = 520
_llseek(4, 16, [16], SEEK_SET) = 0
fcntl64(4, F_SETLKW64, {type=F_UNLCK, whence=SEEK_CUR, start=16, len=520},
0x80d7a48) = 0
--- SIGSEGV (Segmentation fault) @ 0 (0) ---
fcntl64(4, F_SETLKW64, {type=F_WRLCK, whence=SEEK_CUR, start=16, len=520},
0x80d7a48) = 0
_llseek(4, 16, [16], SEEK_SET) = 0
write(4, "\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0"..., 520) = 520
_llseek(4, 16, [16], SEEK_SET) = 0
fcntl64(4, F_SETLKW64, {type=F_UNLCK, whence=SEEK_CUR, start=16, len=520},
0x80d7a48) = 0
--- SIGSEGV (Segmentation fault) @ 0 (0) ---
fcntl64(4, F_SETLKW64, {type=F_WRLCK, whence=SEEK_CUR, start=16, len=520},
0x80d7a48) = 0
_llseek(4, 16, [16], SEEK_SET) = 0
write(4, "\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0"..., 520) = 520
_llseek(4, 16, [16], SEEK_SET) = 0
fcntl64(4, F_SETLKW64, {type=F_UNLCK, whence=SEEK_CUR, start=16, len=520},
0x80d7a48) = 0
--- SIGSEGV (Segmentation fault) @ 0 (0) ---
fcntl64(4, F_SETLKW64, {type=F_WRLCK, whence=SEEK_CUR, start=16, len=520},
0x80d7a48) = 0
_llseek(4, 16, [16], SEEK_SET) = 0
write(4, "\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0"..., 520) = 520
_llseek(4, 16, [16], SEEK_SET) = 0
fcntl64(4, F_SETLKW64, {type=F_UNLCK, whence=SEEK_CUR, start=16, len=520},
0x80d7a48) = 0
--- SIGSEGV (Segmentation fault) @ 0 (0) ---
fcntl64(4, F_SETLKW64, {type=F_WRLCK, whence=SEEK_CUR, start=16, len=520},
0x80d7a48) = 0
_llseek(4, 16, [16], SEEK_SET) = 0
write(4, "\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0"..., 520) = 520
_llseek(4, 16, [16], SEEK_SET) = 0
fcntl64(4, F_SETLKW64, {type=F_UNLCK, whence=SEEK_CUR, start=16, len=520},
0x80d7a48) = 0
--- SIGSEGV (Segmentation fault) @ 0 (0) --- fcntl64(4, F_SETLKW64,
{type=F_WRLCK, whence=SEEK_CUR, start=16, len=520}, 0x80d7a48) = 0
_llseek(4, 16, [16], SEEK_SET) = 0
write(4, "\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0"..., 520) = 520
_llseek(4, 16, [16], SEEK_SET) = 0
fcntl64(4, F_SETLKW64, {type=F_UNLCK, whence=SEEK_CUR, start=16, len=520},
0x80d7a48) = 0
--- SIGSEGV (Segmentation fault) @ 0 (0) ---
fcntl64(4, F_SETLKW64, {type=F_WRLCK, whence=SEEK_CUR, start=16, len=520},
0x80d7a48) = 0
_llseek(4, 16, [16], SEEK_SET) = 0
write(4, "\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0"..., 520) = 520
_llseek(4, 16, [16], SEEK_SET) = 0
[...]
until killed
-- System Information:
Debian Release: testing/unstable
APT prefers unstable
APT policy: (500, 'unstable')
Architecture: i386 (i686)
Shell: /bin/sh linked to /bin/bash
Kernel: Linux 2.6.12-1-686
Locale: LANG=fr_FR.UTF-8, LC_CTYPE=fr_FR.UTF-8 (charmap=UTF-8)
---------------------------------------
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id 1E9KoB-0001kN-Jg; Sun, 28 Aug 2005 12:54:39 +0200
Date: Sun, 28 Aug 2005 12:54:39 +0200
From: Francesco Paolo Lovergine <[EMAIL PROTECTED]>
To: [EMAIL PROTECTED], [EMAIL PROTECTED],
[EMAIL PROTECTED]
Subject: Issues solved
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X-Advocacy: Who uses non-free software empoisons you too. Say him to stop.
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Package: proftpd
Version: 1.2.10-20
These bugs are all fixed in -20 which is available for sarge, too
on my repository:
deb http://people.debian.org/~frankie/debian/sarge/ ./
--
Francesco P. Lovergine
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