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Message-ID: <20121210225752.GI23126@port70.net>
Date: Mon, 10 Dec 2012 23:57:53 +0100
From: Szabolcs Nagy <nsz@...t70.net>
To: musl@...ts.openwall.com
Subject: Re: stdio self-synchronized destruction: does it need fixing?
* Rich Felker <dalias@...ifal.cx> [2012-12-10 13:05:09 -0500]:
> memory. The allocation of FILE structues is always performed by libc,
> and always happens via malloc with a small-size allocation, which
> means the memory is managed as part of the heap and never unmapped
> once it's mapped. Thus, as far as I can tell, the worst that can
> happen is a read-only access to memory no longer owned by the FILE,
at least write a comment there that the invalid read is known
(btw at some point someone may rewrite malloc so small allocations
can go to mmapped areas as well which may be reclaimed..)
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