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[Launchpad Bug Tracker <1471983@xxxxxxxxxxxxxxxxxx>]

This bug was fixed in the package lshw - 02.16-2ubuntu1.4

---------------
lshw (02.16-2ubuntu1.4) trusty; urgency=medium

  * Fix situation where lshw segfaults, when there is an external
    USB 3.0 drive connected to the system. (LP: #1471983)
    - d/p/presumably-fix-653.patch: use local var
    - d/p/fix-701-SCSI-inquiry-fails-on-IA64.patch:
      use uint8_t instead of char where unsigned is needed.

 -- Dan Streetman <dan.streetman@xxxxxxxxxxxxx>  Thu, 19 Oct 2017
10:19:02 -0400

** Changed in: lshw (Ubuntu Trusty)
       Status: Fix Committed => Fix Released

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https://bugs.launchpad.net/bugs/1471983

Title:
  USB HDD makes lshw seg-fault when run as root

Status in lshw package in Ubuntu:
  Fix Released
Status in lshw source package in Trusty:
  Fix Released
Status in lshw source package in Vivid:
  Won't Fix
Status in lshw source package in Wily:
  Fix Released
Status in lshw source package in Xenial:
  Fix Released
Status in lshw source package in Artful:
  Fix Released

Bug description:
  [Impact]

  Scenario #1:
  * When there is an external USB External Drive[1] connected to the system, 'lshw' command segfaults.

  Scenario #2:
  * In the Landscape context, 'lshw' is use for Landscape clients[2] HW inventory ... if an USB External Drive[1] is connected on a Trusty Landscape client, lshw will segfault, thus Landcape inventory for this computer won't be reported/updated.

  [1] - In this case :
  Patriot 32GB Supersonic Rage Series USB 3.0 Flash Drive

  [2] - landscape-client
  landscape/manager/hardwareinfo.py:    command = "/usr/bin/lshw"

  [Test Case]

  Scenario #1:
   * Install Ubuntu Trusty/14.04 LTS
   * Install lshw
     - sudo apt-get install lshw -y
   * Connect the USB 3.0 external drive to the system from where 'lshw' will be executed.
   * Execute 'lshw' or any other tools that uses 'lshw' behind the scene. (Example : Landscape computer inventory, ...)

  Scenario #2:
   * Install Ubuntu Trusty/14.04 LTS
   * Install landscape-client
   * Register the computer to the Landscape (Dedicated server or hosted)
   * Client HW inventory won't happen and system will store a 'lshw' crash file under /var/crash.

  [Regression Potential]

   * Risk is low, the upstream commit has been specifically made
  upstream to fix this problem, and the fix is part of 'lshw' Ubuntu
  package since 2015, Wily. I don't know why Trusty never been SRU'd at
  the same time, but it's never too late to fix it now that we have
  users facing this problem in Trusty/14.04 (LTS)

   * It's been ~3 years now since the patch has been first introduced in
  lshw upstream, and since then no known regression or else has been
  reporter against this specific commit.

   * Debian has the fix.

   * The code changed by this patch handles querying the serial number,
  so regression in this area may cause incorrect or missing serial
  number(s) to be reported by lshw.

  [Other Info]

   * Upstream commits :
  https://ezix.org/src/pkg/lshw/commit/d048d300b5daeb44887a7fc06ddeb120119cac8a
  https://ezix.org/src/pkg/lshw/commit/7b57987bb21d8c178c9beba1f5a574eb0af18e54

  * Bugs:
  http://www.ezix.org/project/ticket/653
  http://www.ezix.org/project/ticket/701

  [Original Description]
  The HDD enclosure causing this is the 'ORICO 2.5 inch USB 3.0'
  As seen here http://www.amazon.co.uk/dp/B00BH83LYG/

  When the enclosure is plugged in, the lshw command runs fine as a
  plain user, but when run as root with either 'sudo su', 'sudo -i' or
  just 'sudo' (I tried all to be sure), lshw starts the normal process
  of scanning through the stuff it scans, but instead of outputting any
  information, it seg-faults with the message "Segmentation Fault".

  When I unplug the HDD enclosure, lshw then runs fine as root.
  This problem occurs both with USB 3.0 and USB 2.0, and has been tested on an AMD 64-bit machine running Xubuntu 14.04 (upgraded from 12.04).

  I also tested on an older Intel 32-bit machine running Xubuntu 14.04 and got the same problem, except this time the message was different;
  "
  terminate called after throwing an instance of 'std::length_error'
    what(): basic_string::_S_create
  "

  I have pasted an extract from dmesg (from the AMD 64-bit machine) here:
  http://pastebin.com/mTfJV04k
  of which mentions lshw with some information about the USB device.

  (this is my first ever bug report, so apologies in advanced if I made any mistakes)
  (Package version lshw 02.16-2ubuntu1.2)

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