linux-kernel - Re: is avoiding compat ioctls possible?

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: <200910290916.50367.arnd@arndb.de>
Date:	Thu, 29 Oct 2009 09:16:50 +0100
From:	Arnd Bergmann <arnd@...db.de>
To:	David Miller <davem@...emloft.net>
Cc:	arndbergmann@...glemail.com, airlied@...ux.ie,
	dri-devel@...ts.sourceforge.net, andi@...stfloor.org,
	linux-kernel@...r.kernel.org, schwidefsky@...ibm.com,
	heiko.carstens@...ibm.com
Subject: Re: is avoiding compat ioctls possible?

On Thursday 29 October 2009, David Miller wrote:
> Arnd, even compat_sys_ioctl() itself has constructs like:
> 
>         case FS_IOC_RESVSP:
>         case FS_IOC_RESVSP64:
>                 error = ioctl_preallocate(filp, (void __user *)arg);
>                 goto out_fput;

Right. This one is pretty recent and I did not notice it doing this
unfortunately. There are a few others added to fs/compat_ioctl.c
over the years also doing it.

	Arnd <><
--
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/