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[Chris J Arges <1303516@xxxxxxxxxxxxxxxxxx>]

The verification of the Stable Release Update for harfbuzz has completed
successfully and the package has now been released to -updates.
Subsequently, the Ubuntu Stable Release Updates Team is being
unsubscribed and will not receive messages about this bug report.  In
the event that you encounter a regression using the package from
-updates please report a new bug using ubuntu-bug and tag the bug report
regression-update so we can easily find any regressions.

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https://bugs.launchpad.net/bugs/1303516

Title:
  ubiquity crashed with SIGSEGV in _int_malloc()

Status in HarfBuzz:
  Fix Released
Status in “graphite2” package in Ubuntu:
  Invalid
Status in “harfbuzz” package in Ubuntu:
  Fix Released
Status in “graphite2” source package in Trusty:
  Invalid
Status in “harfbuzz” source package in Trusty:
  Fix Released

Bug description:
  [ Description ]

  Memory corruption when rendering Myanmar text leeds to a crash

  [ Test case ]

  IMPORTANT NOTE: below will modify currently running locale/keyboard be
  prepared to restore it, e.g. by enabling keyboard indicator to change
  keyboard back to normal.

  1. Install ubiquity on a desktop or boot from an ISO
    $ sudo apt-get install ubiquity-frontend-gtk
  2. If you run on a desktop start ubiquity with:
    $ ubiquity --greeter
  3. Scroll to the bottom of the language list, click on 5th or 4th from the bottom

  ACTUAL RESULT
  python3 segmentation fault:
  *** Error in `/usr/bin/python3': malloc(): memory corruption: 0x0000000003b33d80 ***
  Segmentation fault (core dumped)

  EXPECTED RESULT
  No crash

  [ QA ]

  Check that the test case doesn't crash after applying the SRU

  [ Original Report ]

  I was testing a daily imagine of Ubuntu Gnome 14.04 (Live Image test),
  and was just checking out the languages on the initial boot up. When i
  was trying to click on the 4th language from the bottom ubiquitity
  crashed to give me this error.

  ProblemType: Crash
  DistroRelease: Ubuntu 14.04
  Package: ubiquity 2.17.10
  ProcVersionSignature: Ubuntu 3.13.0-23.45-generic 3.13.8
  Uname: Linux 3.13.0-23-generic x86_64
  ApportVersion: 2.14.1-0ubuntu1
  Architecture: amd64
  CasperVersion: 1.339
  Date: Mon Apr  7 00:06:38 2014
  ExecutablePath: /usr/lib/ubiquity/bin/ubiquity
  InstallCmdLine: file=/cdrom/preseed/ubuntu-gnome.seed boot=casper initrd=/casper/initrd.lz quiet splash -- maybe-ubiquity
  InterpreterPath: /usr/bin/python3.4
  LiveMediaBuild: Ubuntu-GNOME 14.04 LTS "Trusty Tahr" - Daily amd64 (20140406)
  ProcCmdline: /usr/bin/python3 /usr/lib/ubiquity/bin/ubiquity --greeter --only
  ProcEnviron:
   TERM=linux
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=<set>
   LANG=en_US.UTF-8
  SegvAnalysis:
   Segfault happened at: 0x7f3d8a71dd71 <_int_malloc+689>:	mov    %r14,0x10(%r9)
   PC (0x7f3d8a71dd71) ok
   source "%r14" ok
   destination "0x10(%r9)" (0x180000001210) not located in a known VMA region (needed writable region)!
  SegvReason: writing unknown VMA
  Signal: 11
  SourcePackage: ubiquity
  StacktraceTop:
   _int_malloc (av=0x7f3d8aa5c760 <main_arena>, bytes=1824) at malloc.c:3489
   __GI___libc_malloc (bytes=1824) at malloc.c:2891
   ?? () from /usr/lib/x86_64-linux-gnu/libgraphite2.so.3
   gr_make_font_with_ops () from /usr/lib/x86_64-linux-gnu/libgraphite2.so.3
   gr_make_font_with_advance_fn () from /usr/lib/x86_64-linux-gnu/libgraphite2.so.3
  Title: ubiquity crashed with SIGSEGV in _int_malloc()
  UpgradeStatus: No upgrade log present (probably fresh install)
  UpstartUbiquity: debconf: DbDriver "templatedb": /var/cache/debconf/templates.dat is locked by another process: Resource temporarily unavailable
  UserGroups:

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