Crash when login with client on linux

[Carlossg]

Here is log with app

*** glibc detected *** ./MCServer: free(): invalid pointer: 0x0919e6b4 ***
======= Backtrace: =========
/lib/i386-linux-gnu/i686/cmov/libc.so.6(+0x70f01)[0xb7530f01]
/lib/i386-linux-gnu/i686/cmov/libc.so.6(+0x72768)[0xb7532768]
/lib/i386-linux-gnu/i686/cmov/libc.so.6(cfree+0x6d)[0xb753581d]
/usr/lib/i386-linux-gnu/libstdc++.so.6(_ZdlPv+0x1f)[0xb76d14bf]
======= Memory map: ========
08048000-08524000 r-xp 00000000 09:00 529258     /home/servidor/MCServer/MCServer
08524000-08542000 rw-p 004dc000 09:00 529258     /home/servidor/MCServer/MCServer
08542000-08549000 rw-p 00000000 00:00 0
08c0d000-091bf000 rw-p 00000000 00:00 0          [heap]
aabfd000-aabfe000 ---p 00000000 00:00 0
aabfe000-ab3fe000 rw-p 00000000 00:00 0
ab3fe000-ab3ff000 ---p 00000000 00:00 0
ab3ff000-abbff000 rw-p 00000000 00:00 0
abbff000-abc00000 ---p 00000000 00:00 0
abc00000-ac400000 rw-p 00000000 00:00 0
acbff000-acc00000 ---p 00000000 00:00 0
acc00000-ad400000 rw-p 00000000 00:00 0
ad400000-ad600000 rw-p 00000000 00:00 0
ad600000-ad800000 rw-p 00000000 00:00 0
ad800000-ada00000 rw-p 00000000 00:00 0
ada00000-adaff000 rw-p 00000000 00:00 0
adaff000-adb00000 ---p 00000000 00:00 0
adb00000-adc00000 rw-p 00000000 00:00 0
adc00000-ade00000 rw-p 00000000 00:00 0
ade00000-adf00000 rw-p 00000000 00:00 0
adf6c000-adf6d000 rw-p 00000000 00:00 0
adf6d000-adf6e000 ---p 00000000 00:00 0
adf6e000-b277f000 rw-p 00000000 00:00 0
b277f000-b2780000 ---p 00000000 00:00 0
b2780000-b2f80000 rw-p 00000000 00:00 0
b2f80000-b2f81000 ---p 00000000 00:00 0
b2f81000-b3781000 rw-p 00000000 00:00 0
b3781000-b3782000 ---p 00000000 00:00 0
b3782000-b4383000 rw-p 00000000 00:00 0
b4383000-b4384000 ---p 00000000 00:00 0
b4384000-b4b84000 rw-p 00000000 00:00 0
b4b84000-b4b85000 ---p 00000000 00:00 0
b4b85000-b5385000 rw-p 00000000 00:00 0
b5385000-b5386000 ---p 00000000 00:00 0
b5386000-b6300000 rw-p 00000000 00:00 0
b6300000-b6400000 rw-p 00000000 00:00 0
b64bb000-b64bc000 ---p 00000000 00:00 0
b64bc000-b6cbc000 rw-p 00000000 00:00 0
b6cbc000-b6cbd000 ---p 00000000 00:00 0
b6cbd000-b74c0000 rw-p 00000000 00:00 0
b74c0000-b761c000 r-xp 00000000 09:00 134805     /lib/i386-linux-gnu/i686/cmov/libc-2.13.so
b761c000-b761d000 ---p 0015c000 09:00 134805     /lib/i386-linux-gnu/i686/cmov/libc-2.13.so
b761d000-b761f000 r--p 0015c000 09:00 134805     /lib/i386-linux-gnu/i686/cmov/libc-2.13.so
b761f000-b7620000 rw-p 0015e000 09:00 134805     /lib/i386-linux-gnu/i686/cmov/libc-2.13.so
b7620000-b7623000 rw-p 00000000 00:00 0
b7623000-b7638000 r-xp 00000000 09:00 134795     /lib/i386-linux-gnu/i686/cmov/libpthread-2.13.so
b7638000-b7639000 r--p 00014000 09:00 134795     /lib/i386-linux-gnu/i686/cmov/libpthread-2.13.so
b7639000-b763a000 rw-p 00015000 09:00 134795     /lib/i386-linux-gnu/i686/cmov/libpthread-2.13.so
b763a000-b763c000 rw-p 00000000 00:00 0
b763c000-b7658000 r-xp 00000000 09:00 131076     /lib/i386-linux-gnu/libgcc_s.so.1
b7658000-b7659000 rw-p 0001b000 09:00 131076     /lib/i386-linux-gnu/libgcc_s.so.1
b7659000-b767d000 r-xp 00000000 09:00 134802     /lib/i386-linux-gnu/i686/cmov/libm-2.13.so
b767d000-b767e000 r--p 00023000 09:00 134802     /lib/i386-linux-gnu/i686/cmov/libm-2.13.so
b767e000-b767f000 rw-p 00024000 09:00 134802     /lib/i386-linux-gnu/i686/cmov/libm-2.13.so
b767f000-b7680000 rw-p 00000000 00:00 0
b7680000-b7682000 r-xp 00000000 09:00 134798     /lib/i386-linux-gnu/i686/cmov/libdl-2.13.so
b7682000-b7683000 r--p 00001000 09:00 134798     /lib/i386-linux-gnu/i686/cmov/libdl-2.13.so
b7683000-b7684000 rw-p 00002000 09:00 134798     /lib/i386-linux-gnu/i686/cmov/libdl-2.13.so
b7684000-b7764000 r-xp 00000000 09:00 2494238    /usr/lib/i386-linux-gnu/libstdc++.so.6.0.17
b7764000-b7768000 r--p 000e0000 09:00 2494238    /usr/lib/i386-linux-gnu/libstdc++.so.6.0.17
b7768000-b7769000 rw-p 000e4000 09:00 2494238    /usr/lib/i386-linux-gnu/libstdc++.so.6.0.17
b7769000-b7770000 rw-p 00000000 00:00 0
b7778000-b777d000 rw-p 00000000 00:00 0
b777d000-b777e000 r-xp 00000000 00:00 0          [vdso]
b777e000-b779a000 r-xp 00000000 09:00 131094     /lib/i386-linux-gnu/ld-2.13.so
b779a000-b779b000 r--p 0001b000 09:00 131094     /lib/i386-linux-gnu/ld-2.13.so
b779b000-b779c000 rw-p 0001c000 09:00 131094     /lib/i386-linux-gnu/ld-2.13.so
bfc70000-bfc91000 rw-p 00000000 00:00 0          [stack]

And build is:
http://ci.berboe.co.uk/job/MCServer%20Li...Server.tar