RepoMirrors
/
selinux-refpolicy
mirror of https://github.com/SELinuxProject/refpolicy
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

Allow systemd to getattr all files 

Systemd has ConditionPath.*, ConditionFile.* and ConditionDir* which
are used to check various path/file/directory to control starting a
service.  But this requires getattr permissions on the types.
Example denials that fit the problem.

The first example is from lvm where accessing config file.

type=AVC msg=audit(1575427946.229:1624): avc:  denied  { getattr } for
pid=1 comm="systemd" path="/etc/lvm/lvm.conf" dev="dm-0" ino=51799
scontext=system_u:system_r:init_t:s0
tcontext=system_u:object_r:lvm_etc_t:s0 tclass=file permissive=0

This second example is from chronyd, but it is happening becuase I added
the conditional in a drop-in file.

type=AVC msg=audit(1575427959.882:1901): avc:  denied  { getattr } for
pid=1 comm="systemd" path="/etc/chrony.conf" dev="dm-0" ino=53824
scontext=system_u:system_r:init_t:s0
tcontext=system_u:object_r:chronyd_conf_t:s0 tclass=file permissive=1

v3 - rework to not use interface and allow getattr for all files

Signed-off-by: Dave Sugar <dsugar@tresys.com>
This commit is contained in:
Sugar, David 2020-01-23 12:40:49 +00:00 committed by Chris PeBenito
parent f95b1a141d
commit e1ccf0ce02
1 changed files with 5 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
policy/modules/system/init.te
View File

@ -335,6 +335,11 @@ ifdef(`init_systemd',`
domain_subj_id_change_exemption(init_t)
domain_role_change_exemption(init_t)
files_getattr_all_dirs(init_t)
files_getattr_all_files(init_t)
files_getattr_all_pipes(init_t)
files_getattr_all_sockets(init_t)
files_read_all_symlinks(init_t)
files_read_all_pids(init_t)
files_list_usr(init_t)
files_list_var(init_t)