linux-kernel - Re: [PATCH] HID: sony: Enable Gasia third-party PS3 controllers

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: <20150209204414.a4d205be.cand@gmx.com>
Date:	Mon, 9 Feb 2015 20:44:14 +0200
From:	Lauri Kasanen <cand@....com>
To:	Oliver Neukum <oneukum@...e.de>
Cc:	jkosina@...e.cz, linux-input@...r.kernel.org,
	linux-kernel@...r.kernel.org, ao2@....it, AndrewD207@....com
Subject: Re: [PATCH] HID: sony: Enable Gasia third-party PS3 controllers

On Mon, 09 Feb 2015 11:08:01 +0100
Oliver Neukum <oneukum@...e.de> wrote:

> > +	ret = usb_interrupt_msg(dev, usb_sndintpipe(dev, 0x02),
> > +				buf2, sizeof(buf2),
> > +				&transfered, USB_CTRL_SET_TIMEOUT);
> 
> You cannot do this. Even for a single byte DMA on the stack is
> wrong. Not on all architectures it works at all and you violate
> the DMA constrainsts. You must use kmalloc().

Hi Oliver,

Does this still apply when using hid_hw_output_report?

- Lauri
--
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/