*** This bug is a duplicate of bug 2018439 ***
https://bugs.launchpad.net/bugs/2018439
** This bug has been marked a duplicate of bug 2018439
Apparmor crashes GPU acceleration
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https://bugs.launchpad.net/bugs/2044304
Title:
Apparmor crashes GPU acceleration in Firefox 120
Status in apparmor package in Ubuntu:
Confirmed
Bug description:
$ lsb_release -rd
Description: Ubuntu 22.04.3 LTS
Release: 22.04
$ apt-cache policy apparmor
apparmor:
Installed: 3.0.4-2ubuntu2.3
Candidate: 3.0.4-2ubuntu2.3
Version table:
*** 3.0.4-2ubuntu2.3 500 (phased 20%)
500 http://us.archive.ubuntu.com/ubuntu jammy-updates/main amd64
Packages
100 /var/lib/dpkg/status
3.0.4-2ubuntu2 500
500 http://us.archive.ubuntu.com/ubuntu jammy/main amd64 Packages
$ apt-cache policy firefox
firefox:
Installed: 120.0+build2-0ubuntu0.22.04.1~mt1
Candidate: 120.0+build2-0ubuntu0.22.04.1~mt1
Version table:
1:1snap1-0ubuntu2 -1
500 http://us.archive.ubuntu.com/ubuntu jammy/main amd64 Packages
*** 120.0+build2-0ubuntu0.22.04.1~mt1 1001
1001 https://ppa.launchpadcontent.net/mozillateam/ppa/ubuntu
jammy/main amd64 Packages
100 /var/lib/dpkg/status
$ apt-cache policy libglx-mesa0
libglx-mesa0:
Installed: 23.0.4-0ubuntu1~22.04.1
Candidate: 23.0.4-0ubuntu1~22.04.1
Version table:
*** 23.0.4-0ubuntu1~22.04.1 500
500 http://us.archive.ubuntu.com/ubuntu jammy-updates/main amd64
Packages
100 /var/lib/dpkg/status
22.0.1-1ubuntu2 500
500 http://us.archive.ubuntu.com/ubuntu jammy/main amd64 Packages
Firefox Apparmor profile seems out of date and needs extra
permissions.
The issue started happening in Firefox version 120 after an upgrade
from 119.0.1.
I do see the lots of DENIED Apparmor errors before the freeze/crash:
AVC apparmor="DENIED" operation="open" class="file" profile="firefox"
name="/sys/devices/pci0000:00/0000:00:01.0/0000:01:00.0/config" pid=11949
comm="firefox" requested_mask="r" denied_mask="r" fsuid=1000 ouid=0
AVC apparmor="DENIED" operation="open" class="file" profile="firefox"
name="/sys/devices/pci0000:00/0000:00:01.0/0000:01:00.0/revision"
pid=11949 comm="firefox" requested_mask="r" denied_mask="r" fsuid=1000
ouid=0
AVC apparmor="DENIED" operation="open" class="file" profile="firefox"
name="/proc/34029/cgroup" pid=34029
comm=49736F6C617465642057656220436F requested_mask="r" denied_mask="r"
fsuid=1000 ouid=1000
MESA: error: Failed to query drm device.
libEGL warning: egl: failed to create dri2 screen
Adding the following the following permissions to
/etc/apparmor.d/local/usr.bin.firefox seems to mitigate the issue:
/sys/devices/pci*/**/{config,revision} r,
@{PROC}/[0-9]*/**/comm r,
@{PROC}/[0-9]*/**/oom_score_adj w,
Disabling the firefox profile also mitigates the issue. It seems the
profile needs an update to include permissions required by Firefox
120.
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/apparmor/+bug/2044304/+subscriptions
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