This file is indexed.

/etc/apparmor.d/usr.bin.chromium-browser is in apparmor-profiles 2.8.95~2430-0ubuntu5.

This file is owned by root:root, with mode 0o644.

The actual contents of the file can be viewed below.

  1
  2
  3
  4
  5
  6
  7
  8
  9
 10
 11
 12
 13
 14
 15
 16
 17
 18
 19
 20
 21
 22
 23
 24
 25
 26
 27
 28
 29
 30
 31
 32
 33
 34
 35
 36
 37
 38
 39
 40
 41
 42
 43
 44
 45
 46
 47
 48
 49
 50
 51
 52
 53
 54
 55
 56
 57
 58
 59
 60
 61
 62
 63
 64
 65
 66
 67
 68
 69
 70
 71
 72
 73
 74
 75
 76
 77
 78
 79
 80
 81
 82
 83
 84
 85
 86
 87
 88
 89
 90
 91
 92
 93
 94
 95
 96
 97
 98
 99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
# Author: Jamie Strandboge <jamie@canonical.com>
#include <tunables/global>

# We need 'flags=(attach_disconnected)' in newer chromium versions
/usr/lib/chromium-browser/chromium-browser flags=(complain,attach_disconnected) {
  #include <abstractions/audio>
  #include <abstractions/cups-client>
  #include <abstractions/dbus-session>
  #include <abstractions/gnome>
  #include <abstractions/ibus>
  #include <abstractions/nameservice>
  #include <abstractions/user-tmp>

  # This include specifies which ubuntu-browsers.d abstractions to use. Eg, if
  # you want access to productivity applications, adjust the following file
  # accordingly.
  #include <abstractions/ubuntu-browsers.d/chromium-browser>

  # Networking
  network inet stream,
  network inet6 stream,
  @{PROC}/[0-9]*/net/if_inet6 r,
  @{PROC}/[0-9]*/net/ipv6_route r,

  # Should maybe be in abstractions
  /etc/mime.types r,
  /etc/mailcap r,
  /etc/mtab r,
  /etc/xdg/xubuntu/applications/defaults.list r,
  owner @{HOME}/.local/share/applications/defaults.list r,
  owner @{HOME}/.local/share/applications/mimeinfo.cache r,

  @{PROC}/[0-9]*/fd/ r,
  @{PROC}/filesystems r,
  @{PROC}/ r,
  @{PROC}/[0-9]*/task/[0-9]*/stat r,
  owner @{PROC}/[0-9]*/cmdline r,
  owner @{PROC}/[0-9]*/io r,
  @{PROC}/[0-9]*/smaps r,
  owner @{PROC}/[0-9]*/stat r,
  @{PROC}/[0-9]*/statm r,
  owner @{PROC}/[0-9]*/status r,
  owner @{PROC}/[0-9]*/oom_{,score_}adj w,

  # Newer chromium needs these now
  /etc/udev/udev.conf r,
  /sys/devices/system/cpu/cpu*/cpufreq/cpuinfo_max_freq r,
  /sys/devices/pci[0-9]*/**/class r,
  /sys/devices/pci[0-9]*/**/device r,
  /sys/devices/pci[0-9]*/**/irq r,
  /sys/devices/pci[0-9]*/**/resource r,
  /sys/devices/pci[0-9]*/**/vendor r,
  /sys/devices/pci[0-9]*/**/removable r,
  /sys/devices/pci[0-9]*/**/uevent r,
  /sys/devices/pci[0-9]*/**/block/**/size r,
  /sys/devices/virtual/block/**/removable r,
  /sys/devices/virtual/block/**/uevent r,
  /sys/devices/virtual/block/**/size r,
  # This is requested, but doesn't seem to actually be needed so deny for now
  deny /run/udev/data/** r,

  # Needed for the crash reporter
  owner @{PROC}/[0-9]*/auxv r,

  # chromium mmaps all kinds of things for speed.
  /etc/passwd m,
  /usr/share/fonts/truetype/**/*.tt[cf] m,
  /usr/share/fonts/**/*.pfb m,
  /usr/share/mime/mime.cache m,
  /usr/share/icons/**/*.cache m,
  owner /{dev,run}/shm/pulse-shm* m,
  owner @{HOME}/.local/share/mime/mime.cache m,
  owner /tmp/** m,

  @{PROC}/sys/kernel/shmmax r,
  owner /{dev,run}/shm/{,.}org.chromium.* mrw,

  /usr/lib/chromium-browser/*.pak mr,
  /usr/lib/chromium-browser/locales/* mr,

  # Noisy
  deny /usr/lib/chromium-browser/** w,

  # Allow ptracing ourselves
  ptrace (trace) peer=@{profile_name},

  # Make browsing directories work
  / r,
  /**/ r,

  # Allow access to documentation and other files the user may want to look
  # at in /usr
  /usr/{include,share,src}** r,

  # Default profile allows downloads to ~/Downloads and uploads from ~/Public
  owner @{HOME}/ r,
  owner @{HOME}/Public/ r,
  owner @{HOME}/Public/* r,
  owner @{HOME}/Downloads/ r,
  owner @{HOME}/Downloads/* rw,

  # For migration
  owner @{HOME}/.mozilla/firefox/profiles.ini r,
  owner @{HOME}/.mozilla/firefox/*/prefs.js r,

  # Helpers
  /usr/bin/xdg-open ixr,
  /usr/bin/gnome-open ixr,
  /usr/bin/gvfs-open ixr,
  # TODO: kde, xfce

  # Importing firefox settings (requires 'r' access to @{HOME}/.mozilla/**
  # which is provided by abstractions/ubuntu-browsers.d/user-files).
  @{PROC}/[0-9]*/oom_{,score_}adj w,
  /etc/firefox/profile/bookmarks.html r,
  owner @{HOME}/.mozilla/** k,

  # Chromium configuration
  owner @{HOME}/.pki/nssdb/* rwk,
  owner @{HOME}/.cache/chromium/ rw,
  owner @{HOME}/.cache/chromium/** rw,
  owner @{HOME}/.cache/chromium/Cache/* mr,
  owner @{HOME}/.config/chromium/ rw,
  owner @{HOME}/.config/chromium/** rwk,
  owner @{HOME}/.config/chromium/**/Cache/* mr,
  owner @{HOME}/.config/chromium/Dictionaries/*.bdic mr,
  owner @{HOME}/.config/chromium/**/Dictionaries/*.bdic mr,

  # Allow transitions to ourself and our sandbox
  /usr/lib/chromium-browser/chromium-browser ix,
  /usr/lib/chromium-browser/chromium-browser-sandbox cx -> chromium_browser_sandbox,
  /usr/lib/chromium-browser/chrome-sandbox cx -> chromium_browser_sandbox,

  /bin/ps Uxr,
  /usr/lib/chromium-browser/xdg-settings Cxr -> xdgsettings,
  /usr/bin/xdg-settings Cxr -> xdgsettings,
  /usr/bin/lsb_release Cxr -> lsb_release,

  # GSettings
  owner /{,var/}run/user/*/dconf/     rw,
  owner /{,var/}run/user/*/dconf/user rw,
  owner @{HOME}/.config/dconf/user r,

  profile xdgsettings flags=(complain) {
    #include <abstractions/bash>
    #include <abstractions/gnome>

    /bin/dash ixr,

    /etc/ld.so.cache r,
    /usr/bin/xdg-settings r,
    /usr/lib/chromium-browser/xdg-settings r,
    /usr/share/applications/*.desktop r,

    # Checking default browser
    /bin/grep ixr,
    /bin/readlink ixr,
    /bin/sed ixr,
    /bin/which ixr,
    /usr/bin/basename ixr,
    /usr/bin/cut ixr,

    # Setting the default browser
    /bin/mkdir ixr,
    /bin/mv ixr,
    /bin/touch ixr,
    /usr/bin/dirname ixr,
    /usr/bin/gconftool-2 ix,
    /usr/bin/[gm]awk ixr,
    /usr/bin/xdg-mime ixr,
    owner @{HOME}/.local/share/applications/ w,
    owner @{HOME}/.local/share/applications/mimeapps.list* rw,
  }

  profile lsb_release flags=(complain) {
    #include <abstractions/base>
    #include <abstractions/python>
    /usr/bin/lsb_release r,
    /bin/dash ixr,
    /usr/bin/dpkg-query ixr,
    /usr/include/python2.[4567]/pyconfig.h r,
    /etc/lsb-release r,
    /etc/debian_version r,
    /var/lib/dpkg/** r,

    /usr/local/lib/python3.[0-4]/dist-packages/ r,
    /usr/bin/ r,
    /usr/bin/python3.[0-4] r,
  }


  # Site-specific additions and overrides. See local/README for details.
  #include <local/usr.bin.chromium-browser>

profile chromium_browser_sandbox flags=(complain) {
    # Be fanatical since it is setuid root and don't use an abstraction
    /lib/libgcc_s.so* mr,
    /lib/@{multiarch}/libgcc_s.so* mr,
    /lib{,32,64}/libm-*.so* mr,
    /lib/@{multiarch}/libm-*.so* mr,
    /lib{,32,64}/libpthread-*.so* mr,
    /lib/@{multiarch}/libpthread-*.so* mr,
    /lib{,32,64}/libc-*.so* mr,
    /lib/@{multiarch}/libc-*.so* mr,
    /lib{,32,64}/libld-*.so* mr,
    /lib/@{multiarch}/libld-*.so* mr,
    /lib{,32,64}/ld-*.so* mr,
    /lib/@{multiarch}/ld-*.so* mr,
    /lib/tls/*/{cmov,nosegneg}/libm-*.so* mr,
    /lib/tls/*/{cmov,nosegneg}/libpthread-*.so* mr,
    /lib/tls/*/{cmov,nosegneg}/libc-*.so* mr,
    /usr/lib/libstdc++.so* mr,
    /usr/lib/@{multiarch}/libstdc++.so* mr,
    /etc/ld.so.cache r,

    # Required for dropping into PID namespace. Keep in mind that until the
    # process drops this capability it can escape confinement, but once it
    # drops CAP_SYS_ADMIN we are ok.
    capability sys_admin,

    # All of these are for sanely dropping from root and chrooting
    capability chown,
    capability fsetid,
    capability setgid,
    capability setuid,
    capability dac_override,
    capability sys_chroot,

    capability sys_ptrace,
    ptrace (read, readby),

    @{PROC}/ r,
    @{PROC}/[0-9]*/ r,
    @{PROC}/[0-9]*/fd/ r,
    owner @{PROC}/[0-9]*/oom_adj w,
    owner @{PROC}/[0-9]*/oom_score_adj w,
    @{PROC}/[0-9]*/status r,
    @{PROC}/[0-9]*/task/[0-9]*/stat r,

    /usr/bin/chromium-browser r,
    /usr/lib/chromium-browser/chromium-browser Px,
    /usr/lib/chromium-browser/chromium-browser-sandbox r,
    /usr/lib/chromium-browser/chrome-sandbox r,

    /dev/null rw,

    owner /tmp/** rw,
  }
}