linux-kernel - Re: [PATCH] Reading the VDSO area

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: <469D01BE.7070204@goop.org>
Date:	Tue, 17 Jul 2007 10:51:58 -0700
From:	Jeremy Fitzhardinge <jeremy@...p.org>
To:	Andi Kleen <ak@...e.de>
CC:	john.blackwood@...r.com, linux-kernel@...r.kernel.org,
	Jeremy Fitzhardinge <jeremy@...source.com>,
	Roland McGrath <roland@...hat.com>, bugsy@...r.com,
	Andrew Morton <akpm@...ux-foundation.org>,
	Jan Beulich <jbeulich@...ell.com>
Subject: Re: [PATCH] Reading the VDSO area - i386

Andi Kleen wrote:
> On Tuesday 17 July 2007 18:47:56 Jeremy Fitzhardinge wrote:
>   
>> John Blackwood wrote:
>>     
>>> I was doing some tests that attempt to read the VDSO area of a
>>> task through either the /proc/pid/mem or ptrace(PTRACE_PEEKTEXT,
>>> ...) interfaces, and it seems that when the CONFIG_COMPAT_VDSO kernel
>>> parameter is enabled, we can no longer successfully read the VDSO area
>>> on i386 kernels.
>>>       
>> Thanks.  Someone else noticed this recently, and posted a near-identical
>> patch.  But I can't seem to find it right now...
>>
>> Andrew, Andi: do you remember something like this passing by?
>>     
>
> Yes it was from Jan Beulich.
>   

Ah, yes.  For some reason I can't find it in my archives.  Do you have
it queued up?

    J

-
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/