commit: d7af41866897c6ec751ea4b95413a850a3e04e10
Author: Laurent Bigonville <bigon <AT> bigon <DOT> be>
AuthorDate: Sun Oct 6 10:01:48 2019 +0000
Commit: Jason Zaman <perfinion <AT> gentoo <DOT> org>
CommitDate: Mon Dec 16 13:13:11 2019 +0000
URL:
https://gitweb.gentoo.org/proj/hardened-refpolicy.git/commit/?id=d7af4186
Allow alsa_t to create alsa_runtime_t file as well
When alsactl is started as a daemon, it creates a pidfile
(/run/alsactl.pid), that needs to be allowed
----
time->Sun Oct 6 10:59:09 2019
type=AVC msg=audit(1570352349.743:45): avc: denied { write open } for
pid=804 comm="alsactl" path="/run/alsactl.pid" dev="tmpfs" ino=25882
scontext=system_u:system_r:alsa_t:s0 tcontext=system_u:object_r:var_run_t:s0
tclass=file permissive=1
type=AVC msg=audit(1570352349.743:45): avc: denied { create } for pid=804
comm="alsactl" name="alsactl.pid" scontext=system_u:system_r:alsa_t:s0
tcontext=system_u:object_r:var_run_t:s0 tclass=file permissive=1
----
time->Sun Oct 6 11:54:38 2019
type=AVC msg=audit(1570355678.226:657): avc: denied { open } for pid=9186
comm="alsactl" path="/run/alsactl.pid" dev="tmpfs" ino=25882
scontext=system_u:system_r:alsa_t:s0 tcontext=system_u:object_r:var_run_t:s0
tclass=file permissive=1
type=AVC msg=audit(1570355678.226:657): avc: denied { read } for pid=9186
comm="alsactl" name="alsactl.pid" dev="tmpfs" ino=25882
scontext=system_u:system_r:alsa_t:s0 tcontext=system_u:object_r:var_run_t:s0
tclass=file permissive=1
----
time->Sun Oct 6 11:54:38 2019
type=AVC msg=audit(1570355678.230:659): avc: denied { unlink } for pid=804
comm="alsactl" name="alsactl.pid" dev="tmpfs" ino=25882
scontext=system_u:system_r:alsa_t:s0 tcontext=system_u:object_r:var_run_t:s0
tclass=file permissive=1
Signed-off-by: Laurent Bigonville <bigon <AT> bigon.be>
Signed-off-by: Jason Zaman <perfinion <AT> gentoo.org>
policy/modules/admin/alsa.fc | 1 +
policy/modules/admin/alsa.te | 3 ++-
2 files changed, 3 insertions(+), 1 deletion(-)
diff --git a/policy/modules/admin/alsa.fc b/policy/modules/admin/alsa.fc
index 75ea9ebf..3f52f370 100644
--- a/policy/modules/admin/alsa.fc
+++ b/policy/modules/admin/alsa.fc
@@ -4,6 +4,7 @@ HOME_DIR/\.asoundrc --
gen_context(system_u:object_r:alsa_home_t,s0)
/etc/asound\.conf --
gen_context(system_u:object_r:alsa_etc_t,s0)
/run/alsa(/.*)?
gen_context(system_u:object_r:alsa_runtime_t,s0)
+/run/alsactl\.pid --
gen_context(system_u:object_r:alsa_runtime_t,s0)
/usr/bin/ainit --
gen_context(system_u:object_r:alsa_exec_t,s0)
/usr/bin/alsactl --
gen_context(system_u:object_r:alsa_exec_t,s0)
diff --git a/policy/modules/admin/alsa.te b/policy/modules/admin/alsa.te
index 06c7635c..6a0e6fa0 100644
--- a/policy/modules/admin/alsa.te
+++ b/policy/modules/admin/alsa.te
@@ -58,8 +58,9 @@ allow alsa_t alsa_etc_t:file map;
can_exec(alsa_t, alsa_exec_t)
allow alsa_t alsa_runtime_t:dir manage_dir_perms;
+allow alsa_t alsa_runtime_t:file manage_file_perms;
allow alsa_t alsa_runtime_t:lnk_file manage_lnk_file_perms;
-files_pid_filetrans(alsa_t, alsa_runtime_t, dir)
+files_pid_filetrans(alsa_t, alsa_runtime_t, { dir file })
manage_dirs_pattern(alsa_t, alsa_tmp_t, alsa_tmp_t)
manage_files_pattern(alsa_t, alsa_tmp_t, alsa_tmp_t)
