[Bug 1391857] libcairo segfaults when rendering video streams, e.g. youtube videos in webkit base browsers

[Marc Balmer]

> Am 12.11.2014 um 13:50 schrieb Marc Balmer <marc at msys.ch>:
> 
> 
>> Am 12.11.2014 um 13:40 schrieb Sebastien Bacher <seb128 at ubuntu.com>:
>> 
>> Thanks, the corresponding upstream commit seem to be 
>> http://cgit.freedesktop.org/cairo/commit/?id=13a09526d2120c244471e03b6ae979016ef88e83
>> http://cgit.freedesktop.org/cairo/commit/?id=a5f51588afd9d5629b03297eb29ff46350b6ba50
>> 
>> Does it impact any Ubuntu package? If we SRU the fix it should ideally
>> fix a bug reported in launchpad and easy to reproduce so the fix can be
>> confirmed to work
> 
> 
> Yes it does affect Ubuntu packages, e.g. libwebkitgtk-1.0 uses libcairo when rendering video stream and crashes.  Applications that use libwebkitgtk-1.0 consequently also crash.

The package midori is also affected.  Install midori and use the midori
browser to view a video on youtube, it will crash e.g. on this one:

https://www.youtube.com/watch?v=b1XGPvbWn0A
<https://www.youtube.com/watch?v=b1XGPvbWn0A>

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https://bugs.launchpad.net/bugs/1391857

Title:
  libcairo segfaults when rendering video streams, e.g. youtube videos
  in webkit base browsers

Status in “cairo” package in Ubuntu:
  Triaged

Bug description:
  The libcairo version (1.13) that is used on Ubuntu 14.04 contains a
  bug the leads to a segementation fault (see
  https://bugs.freedesktop.org/show_bug.cgi?id=81699) when rendering
  certain video streams.  E.g. webkit based browser that render Youtube
  videos will eventually crash.

  The bug has been fixed upstream, libcairo 1.14 does not segfault, so
  it would be very desirable that the libcairo2 package in Ubuntu gets
  updated to version 1.14 of libcairo.

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