2005-11-01 16:44:00

by JaniD++

[permalink] [raw]
Subject: *** glibc detected *** nmap: malloc(): memory corruption: 0x08718a50 ***

Hello list,

I get this, on my dual-xeon ECC-reg memory system.
What is this? :-)

kernel: 2.6.13
(everything looks like normal)

Thanks,

Janos

[root@dy-xeon-1 r]# nmap -O 80.99.___.__

Starting nmap V. 3.00 ( http://www.insecure.org/nmap/ )
*** glibc detected *** nmap: malloc(): memory corruption: 0x08718a50 ***
======= Backtrace: =========
/lib/libc.so.6[0xb7e793ea]
/lib/libc.so.6(calloc+0x91)[0xb7e7a4d9]
nmap[0x8055cf0]
nmap[0x805a6c3]
nmap[0x805b6e8]
nmap(vfprintf+0x3195)[0x804ca49]
nmap(__strtoul_internal+0x3a6)[0x8049f4a]
/lib/libc.so.6(__libc_start_main+0xc6)[0xb7e29de6]
nmap(wait+0x5d)[0x8049cc1]
======= Memory map: ========
08048000-08086000 r-xp 00000000 00:0e 20707825 /usr/bin/nmap
08086000-08088000 rwxp 0003d000 00:0e 20707825 /usr/bin/nmap
08088000-08759000 rwxp 08088000 00:00 0 [heap]
b7c00000-b7c21000 rwxp b7c00000 00:00 0
b7c21000-b7d00000 ---p b7c21000 00:00 0
b7d9e000-b7da7000 r-xp 00000000 00:0e 4107664
/lib/libgcc_s-4.0.0-20050520.so.1
b7da7000-b7da8000 rwxp 00009000 00:0e 4107664
/lib/libgcc_s-4.0.0-20050520.so.1
b7da8000-b7de9000 rwxp b7da8000 00:00 0
b7de9000-b7df8000 r-xp 00000000 00:0e 4107341 /lib/libresolv-2.3.5.so
b7df8000-b7df9000 r-xp 0000e000 00:0e 4107341 /lib/libresolv-2.3.5.so
b7df9000-b7dfa000 rwxp 0000f000 00:0e 4107341 /lib/libresolv-2.3.5.so
b7dfa000-b7dfc000 rwxp b7dfa000 00:00 0
b7dfc000-b7e00000 r-xp 00000000 00:0e 4107328 /lib/libnss_dns-2.3.5.so
b7e00000-b7e01000 r-xp 00003000 00:0e 4107328 /lib/libnss_dns-2.3.5.so
b7e01000-b7e02000 rwxp 00004000 00:0e 4107328 /lib/libnss_dns-2.3.5.so
b7e09000-b7e12000 r-xp 00000000 00:0e 4107329 /lib/libnss_files-2.3.5.so
b7e12000-b7e13000 r-xp 00008000 00:0e 4107329 /lib/libnss_files-2.3.5.so
b7e13000-b7e14000 rwxp 00009000 00:0e 4107329 /lib/libnss_files-2.3.5.so
b7e14000-b7e15000 rwxp b7e14000 00:00 0
b7e15000-b7f39000 r-xp 00000000 00:0e 4107308 /lib/libc-2.3.5.so
b7f39000-b7f3b000 r-xp 00124000 00:0e 4107308 /lib/libc-2.3.5.so
b7f3b000-b7f3d000 rwxp 00126000 00:0e 4107308 /lib/libc-2.3.5.so
b7f3d000-b7f3f000 rwxp b7f3d000 00:00 0
b7f3f000-b7f61000 r-xp 00000000 00:0e 4107319 /lib/libm-2.3.5.so
b7f61000-b7f62000 r-xp 00021000 00:0e 4107319 /lib/libm-2.3.5.so
b7f62000-b7f63000 rwxp 00022000 00:0e 4107319 /lib/libm-2.3.5.so
b7f69000-b7f6b000 rwxp b7f69000 00:00 0
b7f6b000-b7f85000 r-xp 00000000 00:0e 4105556 /lib/ld-2.3.5.so
b7f85000-b7f86000 r-xp 00019000 00:0e 4105556 /lib/ld-2.3.5.so
b7f86000-b7f87000 rwxp 0001a000 00:0e 4105556 /lib/ld-2.3.5.so
bfe3a000-bfe85000 rwxp bfe3a000 00:00 0 [stack]
ffffe000-fffff000 ---p 00000000 00:00 0 [vdso]
Aborted



2005-11-01 16:48:16

by Hagen Paul Pfeifer

[permalink] [raw]
Subject: Re: *** glibc detected *** nmap: malloc(): memory corruption: 0x08718a50 ***

* JaniD++ | 2005-11-01 17:49:43 [+0100]:

>I get this, on my dual-xeon ECC-reg memory system.
>What is this? :-)

Ask Fyodor! This is a glibc issue, who detects a memory corruption.
There _is_ a bug in nmap!

>kernel: 2.6.13
>(everything looks like normal)

No kernel issue! ;-)

>Janos

HGN

2005-11-01 16:56:05

by JaniD++

[permalink] [raw]
Subject: Re: *** glibc detected *** nmap: malloc(): memory corruption: 0x08718a50 ***

OK

Thanks for fast answer!

Janos

----- Original Message -----
From: "Hagen Paul Pfeifer" <[email protected]>
To: <[email protected]>
Sent: Tuesday, November 01, 2005 5:48 PM
Subject: Re: *** glibc detected *** nmap: malloc(): memory corruption:
0x08718a50 ***


> * JaniD++ | 2005-11-01 17:49:43 [+0100]:
>
> >I get this, on my dual-xeon ECC-reg memory system.
> >What is this? :-)
>
> Ask Fyodor! This is a glibc issue, who detects a memory corruption.
> There _is_ a bug in nmap!
>
> >kernel: 2.6.13
> >(everything looks like normal)
>
> No kernel issue! ;-)
>
> >Janos
>
> HGN
>
> -
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