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From: Joerg Mertens <joerg-mertens@t-online.de>
Newsgroups: comp.lang.c
Subject: Re: A Famous Security Bug
Date: Wed, 20 Mar 2024 19:59:36 +0100
Organization: privat
Lines: 15
Message-ID: <87ttl0pw4n.fsf@jmertens.eternal-september.org>
References: <bug-20240320191736@ram.dialup.fu-berlin.de>
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ram@zedat.fu-berlin.de (Stefan Ram) writes:

>   A "famous security bug":
>
> void f( void )
> { char buffer[ MAX ];
>   /* . . . */
>   memset( buffer, 0, sizeof( buffer )); }
>
>   . Can you see what the bug is?
>
>   (I have already read the answer; I post it as a pastime.)

The optimizer deletes the memset statement because buffer is not
accessed after it?