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From: Alexandre Martins <alexandre.martins@netasq.com>
Organization: NETASQ
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Date: Mon, 12 Mar 2012 17:50:33 +0100
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Subject: Double free() in libc or gdb ?
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Dear all,

I'm currently having some trouble with the dynamic loader.

I have the libc compilled with "MALLOC_DEBUG" flag to detect double free.
When i run this piece of code (attached file) thought GDB, i have this=20
assertion :

Assertion failed: ((run->regs_mask[elm] & (1U << bit)) =3D=3D 0), function=
=20
arena_run_reg_dalloc, file /usr/src/lib/libc/stdlib/malloc.c, line 2543.

But when i run the same binary without GDB, no assert.

I'm very confused. Can you help me to debug that ?

Best regards

=2D-=20
Alexandre Martins
NETASQ -- We secure IT


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