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Message #20798
[Bug 1359831] Re: Apps incorrectly perform a chmod on XDG_RUNTIME_DIR
I accidentally hit 'Post comment' before finishing.
I realize this is triaged for touch-2014-10-09, but this bug is causing
people a lot of confusion (I've been asked about it 5 times from 5
different people so far this week). I marked it as high-- it isn't user
facing, but when triaging bugs in an app, people inevitably and
understandably think this bug is the cause for a while. Feel free to
adjust the priority; I just wanted to make sure people understood the
developer confusion it causes.
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https://bugs.launchpad.net/bugs/1359831
Title:
Apps incorrectly perform a chmod on XDG_RUNTIME_DIR
Status in Camera App:
Confirmed
Status in Ubuntu Reminders app:
New
Status in Sudoku game for Ubuntu Touch:
New
Status in “qtbase-opensource-src” package in Ubuntu:
Confirmed
Bug description:
From bug #1351041:
[Thu Jul 31 21:04:20 2014] type=1400 audit(1406837062.464:97): apparmor="DENIED" operation="chmod" profile="com.ubuntu.reminders_reminders_0.5.203" name="/run/user/32011/" pid=12954 comm="reminders" requested_mask="w" denied_mask="w" fsuid=32011 ouid=32011
From irc:
Aug 21 15:47:20 ubuntu-phablet kernel: [ 251.843308] type=1400 audit(1408636040.346:137): apparmor="DENIED" operation="chmod" profile="com.ubuntu.camera_camera_3.0.0.355" name="/run/user/32011/" pid=4172 comm="camera-app" requested_mask="w" denied_mask="w" fsuid=32011 ouid=32011
AppArmor policy is correct on this denial-- apps should not be able to
change the permissions on the /run/user/32011/ (XDG_RUNTIME_DIR)
directory. I filed this against camera-app and reminders, but my guess
is this is an underlying library that is causing this. I don't know if
the denial is causing errors with the app, but it is causing confusion
for users and developers who see the denial.
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References