Bug 2054759
| Summary: | SELinux is preventing dbus-daemon from read access on the lnk_file /var/lib/flatpak/exports/share/dbus-1/services/org.gnome.Music.Tracker3.Miner.Files.service. | ||
|---|---|---|---|
| Product: | [Fedora] Fedora | Reporter: | Marc Pervaz Boocha <mboocha> |
| Component: | selinux-policy | Assignee: | Zdenek Pytela <zpytela> |
| Status: | CLOSED ERRATA | QA Contact: | Fedora Extras Quality Assurance <extras-qa> |
| Severity: | medium | Docs Contact: | |
| Priority: | medium | ||
| Version: | 36 | CC: | amigadave, debarshir, dwalsh, emailtoflorian, grepl.miroslav, klember, lvrabec, mboocha, michael.scheiffler, mmalik, omosnace, pkoncity, vmojzis, zpytela |
| Target Milestone: | --- | Keywords: | Triaged |
| Target Release: | --- | ||
| Hardware: | Unspecified | ||
| OS: | Unspecified | ||
| Whiteboard: | |||
| Fixed In Version: | selinux-policy-36.7-1.fc36 | Doc Type: | If docs needed, set a value |
| Doc Text: | Story Points: | --- | |
| Clone Of: | Environment: | ||
| Last Closed: | 2022-04-26 02:40:06 UTC | Type: | Bug |
| Regression: | --- | Mount Type: | --- |
| Documentation: | --- | CRM: | |
| Verified Versions: | Category: | --- | |
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
| Cloudforms Team: | --- | Target Upstream Version: | |
| Embargoed: | |||
(In reply to Marc Pervaz Boocha from comment #0) > Comments: related but maybe a separate issue is during installing or > updating flatpak fails with: > Warning: Failed to get revokefs-fuse socket from system-helper: User flatpak > does not exist in password file entry I think this is bug 2070350 (In reply to Marc Pervaz Boocha from comment #0) > Source Context system_u:system_r:xdm_t:s0-s0:c0.c1023 I am a bit puzzled by the presence of xdm_t there. That doesn't seem like something Flatpak has. Marc, are you using XDM as your display manager by any chance? Or is this is a stock Fedora Workstation/Silverblue? (In reply to Debarshi Ray from comment #2) > (In reply to Marc Pervaz Boocha from comment #0) > > Source Context system_u:system_r:xdm_t:s0-s0:c0.c1023 > > I am a bit puzzled by the presence of xdm_t there. That doesn't seem like > something Flatpak has. These two problems are independent, xdm_t AVC will be addressed in selinux-policy. *** Bug 2070330 has been marked as a duplicate of this bug. *** *** Bug 2070738 has been marked as a duplicate of this bug. *** FEDORA-2022-76963fee71 has been submitted as an update to Fedora 36. https://bodhi.fedoraproject.org/updates/FEDORA-2022-76963fee71 I am using Workstation. GDM is my display manager. FEDORA-2022-76963fee71 has been pushed to the Fedora 36 testing repository. Soon you'll be able to install the update with the following command: `sudo dnf upgrade --enablerepo=updates-testing --advisory=FEDORA-2022-76963fee71` You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2022-76963fee71 See also https://fedoraproject.org/wiki/QA:Updates_Testing for more information on how to test updates. Similar problem has been detected: Switched to another account (via System Menu -> Power Off / Log Out -> Switch User...). Shortly after logging in to that account, CPU usage spiked. Logging out of that account & switching back to the first account showed SELinux alerts getting fired once every 3 seconds. This alert is only one of the many that were fired. They are all due to "read" access by /usr/bin/dbus-daemon on what appear to be names of Flatpak apps I have installed. hashmarkername: setroubleshoot kernel: 5.17.3-302.fc36.x86_64 package: selinux-policy-targeted-36.6-1.fc36.noarch reason: SELinux is preventing /usr/bin/dbus-daemon from 'read' accesses on the lnk_file /var/lib/flatpak/exports/share/applications/org.gnome.Photos.desktop. type: libreport FEDORA-2022-76963fee71 has been pushed to the Fedora 36 stable repository. If problem still persists, please make note of it in this bug report. |
***** Plugin catchall_labels (83.8 confidence) suggests ******************* If you want to allow dbus-daemon to have read access on the org.gnome.Music.Tracker3.Miner.Files.service lnk_file Then you need to change the label on /var/lib/flatpak/exports/share/dbus-1/services/org.gnome.Music.Tracker3.Miner.Files.service Do # semanage fcontext -a -t FILE_TYPE '/var/lib/flatpak/exports/share/dbus-1/services/org.gnome.Music.Tracker3.Miner.Files.service' where FILE_TYPE is one of the following: NetworkManager_etc_rw_t, NetworkManager_etc_t, abrt_etc_t, abrt_var_cache_t, admin_home_t, aiccu_etc_t, alsa_etc_rw_t, antivirus_conf_t, asterisk_etc_t, avahi_conf_t, bin_t, bitlbee_conf_t, bluetooth_conf_t, boot_t, bootloader_etc_t, cache_home_t, cert_t, cgconfig_etc_t, cgroup_t, cgrules_etc_t, cluster_conf_t, cobbler_etc_t, condor_conf_t, config_home_t, config_usr_t, conntrackd_conf_t, container_config_t, couchdb_conf_t, courier_etc_t, cpucontrol_conf_t, cupsd_etc_t, cupsd_rw_etc_t, data_home_t, dbus_home_t, dbusd_etc_t, ddclient_etc_t, device_t, devlog_t, dhcp_etc_t, dictd_etc_t, dnsmasq_etc_t, dovecot_etc_t, ecryptfs_t, etc_mail_t, etc_runtime_t, etc_t, exports_t, fetchmail_etc_t, file_context_t, fingerd_etc_t, firewalld_etc_rw_t, firstboot_etc_t, fonts_cache_t, fonts_t, ftpd_etc_t, gconf_etc_t, gconf_home_t, gdomap_conf_t, getty_etc_t, gkeyringd_gnome_home_t, gkeyringd_tmp_t, gnome_home_t, gpm_conf_t, gstreamer_home_t, hddtemp_etc_t, home_root_t, hostname_etc_t, httpd_config_t, hwdata_t, ibacm_conf_t, icc_data_home_t, init_var_run_t, innd_etc_t, irc_conf_t, irssi_etc_t, kdump_etc_t, kmscon_conf_t, krb5_conf_t, krb5kdc_conf_t, kubernetes_file_t, l2tp_conf_t, ld_so_t, lib_t, likewise_etc_t, lircd_etc_t, locale_t, lvm_etc_t, machineid_t, man_cache_t, man_t, mcelog_etc_t, mdadm_conf_t, minidlna_conf_t, minissdpd_conf_t, mock_etc_t, modules_conf_t, motd_var_run_t, mozilla_conf_t, mozilla_plugin_tmp_t, mozilla_plugin_tmpfs_t, mpd_etc_t, mplayer_etc_t, mrtg_etc_t, mscan_etc_t, munin_etc_t, mysqld_etc_t, nagios_etc_t, named_conf_t, net_conf_t, nrpe_etc_t, nslcd_conf_t, ntop_etc_t, ntp_conf_t, nut_conf_t, opendnssec_conf_t, openvpn_etc_rw_t, openvpn_etc_t, openvswitch_rw_t, oracleasm_conf_t, pads_config_t, pam_var_console_t, pdns_conf_t, pegasus_conf_t, pingd_etc_t, piranha_etc_rw_t, piranha_web_conf_t, polipo_etc_t, portreserve_etc_t, postfix_etc_t, postfix_postdrop_t, postgresql_etc_t, postgrey_etc_t, pppd_etc_t, prelude_correlator_config_t, printconf_t, proc_t, psad_etc_t, ptal_etc_t, puppet_etc_t, qmail_etc_t, rabbitmq_conf_t, radiusd_etc_t, radvd_etc_t, redis_conf_t, rhnsd_conf_t, rhsmcertd_config_t, root_t, rpm_script_tmp_t, rpm_var_cache_t, rpm_var_lib_t, rsync_etc_t, samba_etc_t, sanlock_conf_t, security_t, selinux_config_t, selinux_login_config_t, shell_exec_t, shorewall_etc_t, slapd_etc_t, snapperd_conf_t, snort_etc_t, soundd_etc_t, spamd_etc_t, squid_conf_t, src_t, ssh_home_t, sslh_config_t, sssd_conf_t, sssd_var_lib_t, stunnel_etc_t, svc_conf_t, sysfs_t, syslog_conf_t, system_conf_t, system_db_t, system_dbusd_var_lib_t, systemd_hwdb_etc_t, systemd_userdbd_runtime_t, textrel_shlib_t, tftpd_etc_t, tmp_t, tor_etc_t, tuned_etc_t, tuned_rw_etc_t, udev_etc_t, udev_var_run_t, ulogd_etc_t, user_home_dir_t, user_home_t, user_tmp_t, userhelper_conf_t, usr_t, var_lock_t, var_log_t, var_run_t, var_t, varnishd_etc_t, virt_etc_t, virt_var_lib_t, virtlogd_etc_t, vmware_sys_conf_t, webalizer_etc_t, xdm_etc_t, xdm_log_t, xdm_rw_etc_t, xdm_tmpfs_t, xdm_var_lib_t, xdm_var_run_t, xserver_etc_t, xserver_log_t, ypserv_conf_t, zarafa_etc_t, zebra_conf_t. Then execute: restorecon -v '/var/lib/flatpak/exports/share/dbus-1/services/org.gnome.Music.Tracker3.Miner.Files.service' ***** Plugin catchall (17.1 confidence) suggests ************************** If you believe that dbus-daemon should be allowed read access on the org.gnome.Music.Tracker3.Miner.Files.service lnk_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 'dbus-daemon' --raw | audit2allow -M my-dbusdaemon # semodule -X 300 -i my-dbusdaemon.pp Additional Information: Source Context system_u:system_r:xdm_t:s0-s0:c0.c1023 Target Context system_u:object_r:var_lib_t:s0 Target Objects /var/lib/flatpak/exports/share/dbus- 1/services/org.gnome.Music.Tracker3.Miner.Files.se rvice [ lnk_file ] Source dbus-daemon Source Path dbus-daemon Port <Unknown> Host (removed) Source RPM Packages Target RPM Packages SELinux Policy RPM selinux-policy-targeted-36.2-2.fc36.noarch Local Policy RPM selinux-policy-targeted-36.2-2.fc36.noarch Selinux Enabled True Policy Type targeted Enforcing Mode Enforcing Host Name (removed) Platform Linux (removed) 5.17.0-0.rc3.89.fc36.x86_64 #1 SMP PREEMPT Mon Feb 7 14:58:45 UTC 2022 x86_64 x86_64 Alert Count 324 First Seen 2022-02-15 21:01:47 IST Last Seen 2022-02-15 21:01:48 IST Local ID 55691d5d-6608-42e4-9414-40e96ce3d7d0 Raw Audit Messages type=AVC msg=audit(1644939108.408:833): avc: denied { read } for pid=1083 comm="dbus-daemon" name="org.gnome.Music.Tracker3.Miner.Files.service" dev="nvme0n1p3" ino=273511 scontext=system_u:system_r:xdm_t:s0-s0:c0.c1023 tcontext=system_u:object_r:var_lib_t:s0 tclass=lnk_file permissive=0 Hash: dbus-daemon,xdm_t,var_lib_t,lnk_file,read Comments: related but maybe a separate issue is during installing or updating flatpak fails with: Warning: Failed to get revokefs-fuse socket from system-helper: User flatpak does not exist in password file entry Error: Can't open system repo default: While opening repository /var/lib/flatpak/repo: opening repo: opendir(/var/lib/flatpak/repo): Permission denied error: Failed to install com.gitlab.newsflash: Can't open system repo default: While opening repository /var/lib/flatpak/repo: opening repo: opendir(/var/lib/flatpak/repo): Permission denied Selinux error are also present.