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]
Date:	Thu, 8 Jan 2015 15:58:54 -0800
From:	Andrew Duggan <aduggan@...aptics.com>
To:	Gabriele Mazzotta <gabriele.mzt@...il.com>
CC:	Mika Westerberg <mika.westerberg@...ux.intel.com>,
	<linux-input@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
	<benjamin.tissoires@...hat.com>, <jkosina@...e.cz>
Subject: Re: NULL pointer dereference in i2c-hid

On 12/24/2014 03:53 PM, Gabriele Mazzotta wrote:
[...snip...]
>>>> Also, if you can get the firmware id from your touchpad that would also
>>>> be useful.
>>>>
>>>> $ sudo ./rmihidtool -f /dev/hidraw0
>>> firmware id: 1522295
>> Thanks, I will see if I can get any additional information on this.
>>
>> Andrew
> Hi,
>
> I think I found the source of the problem.
>
> $ ./rmihidtool /dev/hidraw1 -r 0x50 1
> 0x01  #PalmDetect Interrupt Enable, right?
Yes, 0x50 does appear to be the address of the palm detect interrupt 
enable register.
> $ ./rmihidtool /dev/hidraw1 -w 0x50 0  #Disable PalmDetect Interrupt
>
> It makes more sense now that widths greater than 12 trigger the bug.
That is weird behavior and I haven't seen anything like that before. I 
will file a bug to see if firmware has any idea why this is happening.
>
> Gabriele
>
Andrew
--
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/

Powered by blists - more mailing lists