linux-kernel - Re: [PATCH, x86]: Fix movq immediate operand constraints in uaccess

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: <4A64D06D.3040109@gmail.com>
Date:	Mon, 20 Jul 2009 22:15:41 +0200
From:	Uros Bizjak <ubizjak@...il.com>
To:	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
CC:	x86@...nel.org
Subject: Re: [PATCH, x86]: Fix movq immediate operand constraints in uaccess_64.h

On 07/19/2009 06:06 PM, Uros Bizjak wrote:
> Hello!
>
> arch/x86/include/asm/uaccess_64.h uses wrong asm operand constraint 
> ("ir") for movq insn. Since movq sign-extends its immediate operand, 
> "er" constraint should be used instead.
>
> Attached patch changes all uses of __put_user_asm in uaccess_64.h to 
> use "er" when "q" insn suffix is involved.
>
> Patch was compile tested on x86_64 with defconfig.
>
> Uros.

Uh, missed signed-off line and Cc, so:

Signed-off-by: Uros Bizjak <ubizjak@...il.com>



View attachment "p.diff.txt" of type "text/plain" (1476 bytes)