face_flags overridden, leading to double free

[Thomas Kluyver]

* Impact:
Daily builds of matplotlib are failing while running an example, due to a bug in freetype. This is already fixed upstream, but it appears that the fix is not yet in Ubuntu.

Test Case:
see http://savannah.nongnu.org/bugs/?40997

Regression potential:
Check for font rendering issues and possible segfaults or corruptions bugs
-------

Upstream bug report:
http://savannah.nongnu.org/bugs/?40997

Upstream fix commit:
http://git.savannah.gnu.org/gitweb/?p=freetype/freetype2.git;a=commit;h=5f577462bd7cc8e2ca6fe4a1efecee6d8a95e7be

Matplotlib bug report that identified this as a freetype issue:
https://github.com/matplotlib/matplotlib/issues/2916

Daily builds (currently disabled because of this error):
https://code.launchpad.net/~takluyver/+recipe/matplotlib-daily

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Sebastien Bacher (seb128)]

Thank you for your bug report, that seems indeed a fix we should backport

[Iain Lane (laney)]

Uploaded to S and T (needs to be reviewed there), thanks

[Launchpad Janitor (janitor)]

This bug was fixed in the package freetype - 2.5.2-1ubuntu3

---------------
freetype (2.5.2-1ubuntu3) utopic; urgency=medium

  * debian/patches-freetype/0001-Fix-Savannah-bug-40997.patch: Cherry-pick
    upstream patch to fix a double free. (LP: #1310728)
 -- Iain Lane <email address hidden> Thu, 01 May 2014 12:53:39 +0100

[Brian Murray (brian-murray)]

Iain - Did you mean U and T? I don't see it the Saucy proposed queue.

[Brian Murray (brian-murray)]

Hello Thomas, or anyone else affected,

Accepted freetype into trusty-proposed. The package will build now and be available at http://launchpad.net/ubuntu/+source/freetype/2.5.2-1ubuntu2.1 in a few hours, and then in the -proposed repository.

Please help us by testing this new package. See https://wiki.ubuntu.com/Testing/EnableProposed for documentation how to enable and use -proposed. Your feedback will aid us getting this update out to other Ubuntu users.

If this package fixes the bug for you, please add a comment to this bug, mentioning the version of the package you tested, and change the tag from verification-needed to verification-done. If it does not fix the bug for you, please add a comment stating that, and change the tag to verification-failed. In either case, details of your testing will help us make a better decision.

Further information regarding the verification process can be found at https://wiki.ubuntu.com/QATeam/PerformingSRUVerification . Thank you in advance!

[Thomas Kluyver (takluyver)]

I've enabled Proposed for the PPA and rerun the problematic build, and I can confirm that the problem has gone away. Thanks! :-)

https://code.launchpad.net/~takluyver/+recipe/matplotlib-daily

[Iain Lane (laney)]

yes I did mean U and T

[Thomas Caswell (tcaswell-gmail)]

I also report that the problem is gone when updating to proprosed (but this is not new information because it is the same script as takluyver had issues with).

[Launchpad Janitor (janitor)]

This bug was fixed in the package freetype - 2.5.2-1ubuntu2.1

---------------
freetype (2.5.2-1ubuntu2.1) trusty; urgency=medium

  * debian/patches-freetype/0001-Fix-Savannah-bug-40997.patch: Cherry-pick
    upstream patch to fix a double free. (LP: #1310728)
 -- Iain Lane <email address hidden> Thu, 01 May 2014 12:53:39 +0100

[Scott Kitterman (kitterman)]

The verification of the Stable Release Update for freetype 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 regresssions.