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From:   "Sugar, David" <dsugar@tresys.com>
To:     "selinux-refpolicy@vger.kernel.org" 
        <selinux-refpolicy@vger.kernel.org>
Subject: [PATCH] resolve syslog imuxsock denial
Thread-Topic: [PATCH] resolve syslog imuxsock denial
Thread-Index: AQHVnQJLQR4EZsJrNUq7d54ZCaS2gQ==
Date:   Sun, 17 Nov 2019 04:48:46 +0000
Message-ID: <20191117044832.13428-1-dsugar@tresys.com>
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I'm seeing the following error while starting rsyslog:
Nov 17 02:01:38 localhost rsyslogd: cannot create '/run/systemd/journal/sys=
log': Permission denied [v8.24.0-41.el7_7.2]
Nov 17 02:01:38 localhost rsyslogd: imuxsock does not run because we could =
not aquire any socket  [v8.24.0-41.el7_7.2]
Nov 17 02:01:38 localhost rsyslogd: activation of module imuxsock failed [v=
8.24.0-41.el7_7.2]

With the following denials:
type=3DAVC msg=3Daudit(1573958708.773:1896): avc:  denied  { create } for  =
pid=3D2347 comm=3D"rsyslogd" name=3D"syslog" scontext=3Dsystem_u:system_r:s=
yslogd_t:s0 tcontext=3Dsystem_u:object_r:syslogd_runtime_t:s0 tclass=3Dsock=
_file permissive=3D1
type=3DAVC msg=3Daudit(1573958708.773:1897): avc:  denied  { setattr } for =
 pid=3D2347 comm=3D"rsyslogd" name=3D"syslog" dev=3D"tmpfs" ino=3D19368 sco=
ntext=3Dsystem_u:system_r:syslogd_t:s0 tcontext=3Dsystem_u:object_r:syslogd=
_runtime_t:s0 tclass=3Dsock_file permissive=3D1

Signed-off-by: Dave Sugar <dsugar@tresys.com>
---
 policy/modules/system/logging.te | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/policy/modules/system/logging.te b/policy/modules/system/loggi=
ng.te
index 3d5b57f1..42d77a24 100644
--- a/policy/modules/system/logging.te
+++ b/policy/modules/system/logging.te
@@ -432,6 +432,8 @@ allow syslogd_t syslogd_runtime_t:file map;
 files_pid_filetrans(syslogd_t, syslogd_runtime_t, file)
 allow syslogd_t syslogd_runtime_t:dir create_dir_perms;
=20
+allow syslogd_t syslogd_runtime_t:sock_file { create setattr };
+
 kernel_read_crypto_sysctls(syslogd_t)
 kernel_read_system_state(syslogd_t)
 kernel_read_network_state(syslogd_t)
--=20
2.21.0