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Date: Fri, 27 Dec 2013 14:05:44 -0500
From: Rich Felker <>
Subject: Re: NULL deref SEGV in malloc.c:unbin()

On Fri, Dec 27, 2013 at 06:35:00PM +0000, David Wuertele wrote:
> I wonder if anyone has hit this before?   In unbin(), c->next->prev is set, but
> c->next is NULL.   It happens repeatedly, and here's what gdb says:

It's almost surely a case of memory corruption by the calling program,
most likely using memory after it's already been freed.


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