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[PATCH] USB: Buffer overflow patch for Yealink driver

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Just a small patch that fixes a small parameter validation bug.

  drivers/usb/input/map_to_7segment.h:
    This patch fixes the broken parameter validation in the char to seg7
    conversion. This could cause out-of-bounds memory references.

  MAINTAINERS:
    Yealink maintainer info now in sorted order.

  Documentation/input/yealink.txt:
    Added a Q&A section that answers some common questions.

Signed-off-by: Henk <Henk.Vergonet@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

006491df1a13f85ad245d1039dfdf20e49c394fd
This commit is contained in:
Henk 2005-10-12 15:02:56 +02:00 committed by Greg Kroah-Hartman
parent b81d34363c
commit af64a5ebb8
3 changed files with 23 additions and 10 deletions
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19
Documentation/input/yealink.txt
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@ -2,7 +2,6 @@ Driver documentation for yealink usb-p1k phones
0. Status
~~~~~~~~~
The p1k is a relatively cheap usb 1.1 phone with:
- keyboard full support, yealink.ko / input event API
- LCD full support, yealink.ko / sysfs API
@ -17,9 +16,8 @@ For vendor documentation see http://www.yealink.com
1. Compilation (stand alone version)
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Currently only kernel 2.6.x.y versions are supported.
In order to build the yealink.ko module do:
In order to build the yealink.ko module do
make
@ -28,6 +26,21 @@ the Makefile is pointing to the location where your kernel sources
are located, default /usr/src/linux.
1.1 Troubleshooting
~~~~~~~~~~~~~~~~~~~
Q: Module yealink compiled and installed without any problem but phone
is not initialized and does not react to any actions.
A: If you see something like:
hiddev0: USB HID v1.00 Device [Yealink Network Technology Ltd. VOIP USB Phone
in dmesg, it means that the hid driver has grabbed the device first. Try to
load module yealink before any other usb hid driver. Please see the
instructions provided by your distribution on module configuration.
Q: Phone is working now (displays version and accepts keypad input) but I can't
find the sysfs files.
A: The sysfs files are located on the particular usb endpoint. On most
distributions you can do: "find /sys/ -name get_icons" for a hint.
2. keyboard features
~~~~~~~~~~~~~~~~~~~~

12
MAINTAINERS
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@ -116,12 +116,6 @@ M: ajk@iehk.rwth-aachen.de
L: linux-hams@vger.kernel.org
S: Maintained
YEALINK PHONE DRIVER
P: Henk Vergonet
M: Henk.Vergonet@gmail.com
L: usbb2k-api-dev@nongnu.org
S: Maintained
8139CP 10/100 FAST ETHERNET DRIVER
P: Jeff Garzik
M: jgarzik@pobox.com
@ -2863,6 +2857,12 @@ M: jpr@f6fbb.org
L: linux-hams@vger.kernel.org
S: Maintained
YEALINK PHONE DRIVER
P: Henk Vergonet
M: Henk.Vergonet@gmail.com
L: usbb2k-api-dev@nongnu.org
S: Maintained
YMFPCI YAMAHA PCI SOUND (Use ALSA instead)
P: Pete Zaitcev
M: zaitcev@yahoo.com

2
drivers/usb/input/map_to_7segment.h
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@ -79,7 +79,7 @@ struct seg7_conversion_map {
static inline int map_to_seg7(struct seg7_conversion_map *map, int c)
{
return c & 0x7f ? map->table[c] : -EINVAL;
return c >= 0 && c < sizeof(map->table) ? map->table[c] : -EINVAL;
}
#define SEG7_CONVERSION_MAP(_name, _map) \