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Re: buffer overflow with ar

From: Nick Clifton <nickc at redhat dot com>
To: Ralf Corsepius <ralf dot corsepius at rtems dot org>
Cc: Binutils List <binutils at sources dot redhat dot com>, Joel Sherrill <joel dot sherrill at OARcorp dot com>
Date: Thu, 07 Jul 2005 12:44:58 +0100
Subject: Re: buffer overflow with ar
References: <1120582504.30532.22.camel@mccallum.corsepiu.local>

Hi Ralf,

When trying to use a cross-ar from vanilla binutils-2.16 or binutils-2.16.1 on FC4, I am observing this
# arm-rtems4.7-ar  rc ./libgcc.a libgcc/./_udivsi3.o
*** buffer overflow detected ***: arm-rtems4.7-ar terminated

/lib/libc.so.6(__sprintf_chk+0x30)[0x1eee24]
arm-rtems4.7-ar[0x804f5f6]

I there a fix/work-around?

Not yet.

Is it a binutils or FC problem?

binutils.

I hardly can believe nobody has been facing this issue before, but
haven't tried to investigate in depth, yet.

Can you run this under a debugger and find out which call to sprintf is overflowing, and what the parameters are ?

Cheers
  Nick

Follow-Ups:
- Re: buffer overflow with ar
  - From: Ralf Corsepius
- Re: buffer overflow with ar
  - From: Ralf Corsepius

References:
- buffer overflow with ar
  - From: Ralf Corsepius

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