Description of problem: When Firefox tries to start the WideVine DRM plugin, it loads the .so file from the profile dir. When that's on an ecryptfs volume, selinux will forbid that. Steps to Reproduce: 1. Start Firefox with it's profile in an encrypted /home 2. Try to run e.g. Spotify web player 3. Be very sad DRM was actually (not) included in the HTML spec Workaround: setsebool unconfined_mozilla_plugin_transition 0 running restorecon -RrFv on ecryptfs does grand-all nuttin': [theloeki@murphy 1.4.8.1008]$ pwd /home/theloeki/.mozilla/firefox/cmaeafnc.default/gmp-widevinecdm/1.4.8.1008 [theloeki@murphy 1.4.8.1008]$ ls -1Z system_u:object_r:ecryptfs_t:s0 libwidevinecdm.so system_u:object_r:ecryptfs_t:s0 LICENSE.txt system_u:object_r:ecryptfs_t:s0 manifest.json Additional info: SELinux is preventing plugin-containe from map access on the file /home/theloeki/.mozilla/firefox/cmaeafnc.default/gmp- widevinecdm/1.4.8.1008/libwidevinecdm.so. ***** Plugin restorecon (57.3 confidence) suggests ************************ If you want to fix the label. /home/theloeki/.mozilla/firefox/cmaeafnc.default/gmp- widevinecdm/1.4.8.1008/libwidevinecdm.so default label should be mozilla_home_t. Then you can run restorecon. The access attempt may have been stopped due to insufficient permissions to access a parent directory in which case try to change the following command accordingly. Do # /sbin/restorecon -v /home/theloeki/.mozilla/firefox/cmaeafnc.default/gmp- widevinecdm/1.4.8.1008/libwidevinecdm.so ***** Plugin mozplugger (43.1 confidence) suggests ************************ If you want to use the plugin package Then you must turn off SELinux controls on the Firefox plugins. Do # setsebool -P unconfined_mozilla_plugin_transition 0 ***** Plugin catchall (1.06 confidence) suggests ************************** If you believe that plugin-containe should be allowed map access on the libwidevinecdm.so file by default. Then you should report this as a bug. You can generate a local policy module to allow this access. Do allow this access for now by executing: # ausearch -c 'plugin-containe' --raw | audit2allow -M my- plugincontaine # semodule -X 300 -i my-plugincontaine.pp Additional Information: Source Context unconfined_u:unconfined_r:mozilla_plugin_t:s0- s0:c 0.c1023 Target Context system_u:object_r:ecryptfs_t:s0 Target Objects /home/theloeki/.mozilla/firefox/cmaeafnc.default /g mp- widevinecdm/1.4.8.1008/libwidevinecdm.so [ file ] Source plugin-containe Source Path plugin-containe Port <Unknown> Host murphy Source RPM Packages Target RPM Packages Policy RPM selinux-policy-3.13.1-283.24.fc27.noarch Selinux Enabled True Policy Type targeted Enforcing Mode Enforcing Host Name murphy Platform Linux murphy 4.14.18-300.fc27.x86_64 #1 SMP Thu Feb 8 01:35:31 UTC 2018 x86_64 x86_64 Alert Count 3 First Seen 2018-02-15 12:39:48 CET Last Seen 2018-02-15 12:40:39 CET Local ID 96dd3108-9c20-4aaf-8762-1186591412a5 Raw Audit Messages type=AVC msg=audit(1518694839.270:403): avc: denied { map } for pid=13524 comm="plugin-containe" path="/home/theloeki/.mozilla/firefox/cmaeafnc.default/gmp- widevinecdm/1.4.8.1008/libwidevinecdm.so" dev="ecryptfs" ino=134510276 scontext=unconfined_u:unconfined_r:mozilla_plugin_t:s0-s0:c0.c1023 tcontext=system_u:object_r:ecryptfs_t:s0 tclass=file permissive=0 Hash: plugin-containe,mozilla_plugin_t,ecryptfs_t,file,map
This message is a reminder that Fedora 27 is nearing its end of life. On 2018-Nov-30 Fedora will stop maintaining and issuing updates for Fedora 27. It is Fedora's policy to close all bug reports from releases that are no longer maintained. At that time this bug will be closed as EOL if it remains open with a Fedora 'version' of '27'. Package Maintainer: If you wish for this bug to remain open because you plan to fix it in a currently maintained version, simply change the 'version' to a later Fedora version. Thank you for reporting this issue and we are sorry that we were not able to fix it before Fedora 27 is end of life. If you would still like to see this bug fixed and are able to reproduce it against a later version of Fedora, you are encouraged change the 'version' to a later Fedora version prior this bug is closed as described in the policy above. Although we aim to fix as many bugs as possible during every release's lifetime, sometimes those efforts are overtaken by events. Often a more recent Fedora release includes newer upstream software that fixes bugs or makes them obsolete.
This issue affects Fedora 29 too. type=AVC msg=audit(1543357322.820:414): avc: denied { map } for pid=32046 comm="plugin-containe" path="/home/ihar/.mozilla/firefox/yuzfuiy9.default/gmp-widevinecdm/1.4.9.1088/libwidevinecdm.so" dev="dm-3" ino=6819816 scontext=unconfined_u:unconfined_r:mozilla_plugin_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:container_file_t:s0 tclass=file permissive=0 type=ANOM_ABEND msg=audit(1543357322.839:415): auid=1000 uid=1000 gid=1000 ses=2 subj=unconfined_u:unconfined_r:mozilla_plugin_t:s0-s0:c0.c1023 pid=32046 comm="plugin-containe" exe="/usr/lib64/firefox/plugin-container" sig=11 res=1AUID="ihar" UID="ihar" GID="ihar" type=AVC msg=audit(1543357326.032:418): avc: denied { map } for pid=32073 comm="plugin-containe" path="/home/ihar/.mozilla/firefox/yuzfuiy9.default/gmp-widevinecdm/1.4.9.1088/libwidevinecdm.so" dev="dm-3" ino=6819816 scontext=unconfined_u:unconfined_r:mozilla_plugin_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:container_file_t:s0 tclass=file permissive=0 type=ANOM_ABEND msg=audit(1543357326.050:419): auid=1000 uid=1000 gid=1000 ses=2 subj=unconfined_u:unconfined_r:mozilla_plugin_t:s0-s0:c0.c1023 pid=32073 comm="plugin-containe" exe="/usr/lib64/firefox/plugin-container" sig=11 res=1AUID="ihar" UID="ihar" GID="ihar" type=AVC msg=audit(1543357336.967:422): avc: denied { map } for pid=32261 comm="plugin-containe" path="/home/ihar/.mozilla/firefox/yuzfuiy9.default/gmp-widevinecdm/1.4.9.1088/libwidevinecdm.so" dev="dm-3" ino=6819798 scontext=unconfined_u:unconfined_r:mozilla_plugin_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:container_file_t:s0 tclass=file permissive=0 type=ANOM_ABEND msg=audit(1543357336.984:423): auid=1000 uid=1000 gid=1000 ses=2 subj=unconfined_u:unconfined_r:mozilla_plugin_t:s0-s0:c0.c1023 pid=32261 comm="plugin-containe" exe="/usr/lib64/firefox/plugin-container" sig=11 res=1AUID="ihar" UID="ihar" GID="ihar" type=AVC msg=audit(1543357341.297:426): avc: denied { map } for pid=32284 comm="plugin-containe" path="/home/ihar/.mozilla/firefox/yuzfuiy9.default/gmp-widevinecdm/1.4.9.1088/libwidevinecdm.so" dev="dm-3" ino=6819798 scontext=unconfined_u:unconfined_r:mozilla_plugin_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:container_file_t:s0 tclass=file permissive=0 type=ANOM_ABEND msg=audit(1543357341.314:427): auid=1000 uid=1000 gid=1000 ses=2 subj=unconfined_u:unconfined_r:mozilla_plugin_t:s0-s0:c0.c1023 pid=32284 comm="plugin-containe" exe="/usr/lib64/firefox/plugin-container" sig=11 res=1AUID="ihar" UID="ihar" GID="ihar"
This is looks like you relabled content in your home directory with a container label? This is the wrong thing to do, if you use podman or docker and volume mount in your entire home dir, you should not relabel it. -v /home/ihar:/home/ihar:Z This causes the container engine (podman or docker) to relabel the directory, and other confined domains will nto be able to use the content. You can fix the labels using restorecon restorecon -R -F -v ~/
Thanks Dan, Ronald van Zantvoort, Please try commands from comment#3, if you're still facing this issues feel free to re-open this BZ.
Thanks Daniel, the commands indeed helped. I think I screwed up my homedir when I was exposing a subdirectory into a container.