linux-kernel - Re: [PATCH] broken TASK_SIZE for ia32

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <20120506195840.GX6871@ZenIV.linux.org.uk>
Date:	Sun, 6 May 2012 20:58:40 +0100
From:	Al Viro <viro@...IV.linux.org.uk>
To:	David Miller <davem@...emloft.net>
Cc:	Linus Torvalds <torvalds@...ux-foundation.org>,
	linux-kernel@...r.kernel.org, Ralf Baechle <ralf@...ux-mips.org>,
	"H. Peter Anvin" <hpa@...or.com>
Subject: Re: [PATCH] broken TASK_SIZE for ia32_aout

On Sun, May 06, 2012 at 11:48:15AM -0700, H. Peter Anvin wrote:
> Al Viro <viro@...IV.linux.org.uk> wrote:
> >Umm...  Let me restate that question: is there ever a case when it
> >would
> >_not_ be a syscall property?  I.e. when both 64bit and 32bit syscalls
> >are
> >possible for a given process *and* callers of is_compat_task() care
> >about
> >the kind of process and not the kind of syscall?
> >
> >Is e.g. sparc behaviour ("what kind of process it is, regardless of
> >whether
> >we are issuing a 32bit or a 64bit syscall") correct?
> >
> >Sure, on a platform where the possible kind of syscall is a function of
> >process' personality, a thread property can be a used to tell which
> >kind of syscall we are in.

> I would argue Sparc is not correct here but I am not a Sparc expert.

Dave?
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/