From: Roland McGrath <roland@redhat.com>
To: Andi Kleen <ak@muc.de>
Cc: linux-kernel@vger.kernel.org
Subject: Re: [PATCH] bogus sigaltstack calls by rt_sigreturn
Date: Mon, 24 May 2004 11:10:32 -0700 [thread overview]
Message-ID: <200405241810.i4OIAWDO007750@magilla.sf.frob.com> (raw)
In-Reply-To: Andi Kleen's message of Sunday, 23 May 2004 14:29:24 +0200 <m38yfjtjh7.fsf@averell.firstfloor.org>
> Roland McGrath <roland@redhat.com> writes:
>
> > There is a longstanding bug in the rt_sigreturn system call.
> > This exists in both 2.4 and 2.6, and for almost every platform.
>
> I don't think the patch is really needed on x86-64 because the
> kernel address should always return -EFAULT in access_ok().
The patch I sent doesn't just avoid the bogus access, it implements the
feature properly.
next prev parent reply other threads:[~2004-05-24 18:10 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <1YQB7-2XK-7@gated-at.bofh.it>
2004-05-23 12:29 ` Andi Kleen
2004-05-24 18:10 ` Roland McGrath [this message]
2004-05-23 2:01 Roland McGrath
2004-05-23 9:00 ` Andreas Schwab
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