From: Bodo Eggert <7eggert@elstempel.de>
To: Andi Kleen <ak@suse.de>, Chuck Ebbert <76306.1226@compuserve.com>,
linux-kernel <linux-kernel@vger.kernel.org>,
Linus Torvalds <torvalds@osdl.org>
Subject: Re: [patch] x86: rename is_at_popf(), add iret to tests and fix insn length
Date: Wed, 02 Aug 2006 23:29:30 +0200 [thread overview]
Message-ID: <E1G8OHm-0000m3-91@be1.lrz> (raw)
In-Reply-To: <6Fouu-6Ch-17@gated-at.bofh.it>
Andi Kleen <ak@suse.de> wrote:
> On Wednesday 02 August 2006 14:37, Chuck Ebbert wrote:
>> is_at_popf() needs to test for the iret instruction as well as
>> popf. So add that test and rename it to is_setting_trap_flag().
>
> Do you have a single real example where anybody is actually using IRET
> in user space?
It might be used by malicious software, so unless it can't be abused,
it must be checked.
--
Ich danke GMX dafür, die Verwendung meiner Adressen mittels per SPF
verbreiteten Lügen zu sabotieren.
http://david.woodhou.se/why-not-spf.html
next parent reply other threads:[~2006-08-02 21:30 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <6FokL-6q5-7@gated-at.bofh.it>
[not found] ` <6Fouu-6Ch-17@gated-at.bofh.it>
2006-08-02 21:29 ` Bodo Eggert [this message]
2006-08-02 13:35 Chuck Ebbert
2006-08-02 22:12 ` Andi Kleen
-- strict thread matches above, loose matches on Subject: below --
2006-08-02 12:37 Chuck Ebbert
2006-08-02 12:54 ` Andi Kleen
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