Bug 52501

Summary:	prism2_usb: SIOCGIWSCAN truncates ESSIDs
Product:	Drivers	Reporter:	Tormod Volden (bugz.kernel.tormod)
Component:	Staging	Assignee:	drivers_staging (drivers_staging)
Status:	RESOLVED CODE_FIX
Severity:	normal	CC:	florian
Priority:	P1
Hardware:	All
OS:	Linux
Kernel Version:	3.7	Subsystem:
Regression:	Yes	Bisected commit-id:

Description Tormod Volden 2013-01-08 21:01:03 UTC

Running iwlist wlan0 scan lists the available networks, but I only see the 6 first characters of each ESSID. Studying the data returned from the SIOCGIWSCAN ioctl I can see that each ESSID is preceded by 6 which I guess is the reported length although I am not sure about this structure format.

I am using wireless-tools 30~pre9-5ubuntu2 and the 3.7.0-7.15-generic Linux kernel from Ubuntu.

Comment 1 Tormod Volden 2013-01-10 21:53:13 UTC

Patch submitted at http://driverdev.linuxdriverproject.org/pipermail/devel/2013-January/034468.html

Comment 2 Florian Mickler 2013-01-26 10:49:14 UTC

A patch referencing this bug report has been merged in Linux v3.8-rc5:

commit 811a37effdb11e54e1ff1ddaa944286c88f58487
Author: Tormod Volden <debian.tormod@gmail.com>
Date:   Wed Jan 9 22:23:32 2013 +0100

    staging: wlan-ng: Fix clamping of returned SSID length

Comment 3 Tormod Volden 2013-01-30 21:03:44 UTC

Tested and verified on 3.4.27, 3.7.4, 3.8-rc5.