Bug#905437: libreoffice-common: AppArmor denies access to mesa shader cache

[Vincas Dargis <vindrg@gmail.com>]

Package: libreoffice-common
Version: 1:6.1.0~rc2-3
Severity: normal
Tags: upstream
User: pkg-apparmor-team@lists.alioth.debian.org 
Usertags: modify-profile

Dear Maintainer,

I got this deny:
```
type=AVC msg=audit(1533391970.983:584): apparmor="DENIED" operation="open" profile="libreoffice-soffice" name="/home/vincas/.cache/mesa_shader_cache/index" pid=20638 comm="soffice.bin" requested_mask="wrc" denied_mask="wrc" fsuid=1000 ouid=1000
```

This could be fixed with new `mesa` abstraction [0], though it is not
yeat available in Buster.

[0] https://gitlab.com/apparmor/apparmor/blob/59865e54c55c8f375460ba22a725468ce3fb6957/profiles/apparmor.d/abstractions/mesa

-- System Information:
Debian Release: buster/sid
  APT prefers unstable-debug
  APT policy: (500, 'unstable-debug'), (500, 'unstable'), (1, 'experimental-debug'), (1, 'experimental')
Architecture: amd64 (x86_64)
Foreign Architectures: i386

Kernel: Linux 4.17.0-1-amd64 (SMP w/8 CPU cores)
Locale: LANG=lt_LT.UTF-8, LC_CTYPE=lt_LT.UTF-8 (charmap=UTF-8), LANGUAGE=lt (charmap=UTF-8)
Shell: /bin/sh linked to /usr/bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled

Versions of packages libreoffice-common depends on:
ii  libnumbertext-data       1.0-2
ii  libreoffice-style-tango  1:6.1.0~rc2-3
ii  ure                      6.1.0~rc2-3

Versions of packages libreoffice-common recommends:
ii  fonts-liberation2   2.00.1-7
ii  libexttextcat-data  3.4.5-1
ii  python3-uno         1:6.1.0~rc2-3
ii  xdg-utils           1.1.3-1

Versions of packages libreoffice-common suggests:
ii  libreoffice-style-tango [libreoffice-style]  1:6.1.0~rc2-3

Versions of packages python3-uno depends on:
ii  libc6             2.27-5
ii  libgcc1           1:8.2.0-3
ii  libpython3.6      3.6.6-1
ii  libreoffice-core  1:6.1.0~rc2-3
ii  libstdc++6        8.2.0-3
ii  python3           3.6.6-1
ii  python3.6         3.6.6-1
ii  uno-libs3         6.1.0~rc2-3
ii  ure               6.1.0~rc2-3

-- Configuration Files:
/etc/apparmor.d/usr.lib.libreoffice.program.oosplash changed [not included]
/etc/apparmor.d/usr.lib.libreoffice.program.soffice.bin changed [not included]

-- no debconf information