I am seeing the following denial (in dmesg) during system startup:
[ 4.623332] type=1400 audit(1507767947.042:3): avc: denied { relabelto } for pid=1 comm="systemd" name="private" dev="tmpfs" ino=5865 scontext=system_u:system_r:init_t:s0 tcontext=system_u:object_r:init_var_run_t:s0 tclass=sock_file
It appears that systemd is attempting to relablel the socket file /run/systemd/private to init_var_run_t but doesn't have permission.
Updated to create new interface for relabeling of sock_files rather than adding to existing interface
Signed-off-by: Dave Sugar <[email protected]>
---
policy/modules/kernel/files.if | 19 +++++++++++++++++++
policy/modules/system/init.te | 1 +
2 files changed, 20 insertions(+)
diff --git a/policy/modules/kernel/files.if b/policy/modules/kernel/files.if
index 41b0b54d..1dd3f6eb 100644
--- a/policy/modules/kernel/files.if
+++ b/policy/modules/kernel/files.if
@@ -6739,6 +6739,25 @@ interface(`files_relabel_all_pid_dirs',`
########################################
## <summary>
+## Relabel to/from all var_run (pid) socket files
+## </summary>
+## <param name="domain">
+## <summary>
+## Domain alloed access.
+## </summary>
+## </param>
+#
+interface(`files_relabel_all_pid_sock_files',`
+ gen_require(`
+ attribute pidfile;
+ ')
+
+ relabel_sock_files_pattern($1, pidfile, pidfile)
+')
+
+
+########################################
+## <summary>
## Relabel to/from all var_run (pid) files and directories
## </summary>
## <param name="domain">
diff --git a/policy/modules/system/init.te b/policy/modules/system/init.te
index dbc31d1d..be5157d4 100644
--- a/policy/modules/system/init.te
+++ b/policy/modules/system/init.te
@@ -279,6 +279,7 @@ ifdef(`init_systemd',`
files_mounton_root(init_t)
files_search_pids(init_t)
files_relabel_all_pids(init_t)
+ files_relabel_all_pid_sock_files(init_t)
files_relabelto_etc_runtime_dirs(init_t)
files_relabelto_etc_runtime_files(init_t)
files_read_all_locks(init_t)
--
2.13.5
On 10/12/2017 12:16 PM, David Sugar via refpolicy wrote:
> I am seeing the following denial (in dmesg) during system startup:
> [ 4.623332] type=1400 audit(1507767947.042:3): avc: denied { relabelto } for pid=1 comm="systemd" name="private" dev="tmpfs" ino=5865 scontext=system_u:system_r:init_t:s0 tcontext=system_u:object_r:init_var_run_t:s0 tclass=sock_file
>
> It appears that systemd is attempting to relablel the socket file /run/systemd/private to init_var_run_t but doesn't have permission.
>
> Updated to create new interface for relabeling of sock_files rather than adding to existing interface
>
> Signed-off-by: Dave Sugar <[email protected]>
> ---
> policy/modules/kernel/files.if | 19 +++++++++++++++++++
> policy/modules/system/init.te | 1 +
> 2 files changed, 20 insertions(+)
>
> diff --git a/policy/modules/kernel/files.if b/policy/modules/kernel/files.if
> index 41b0b54d..1dd3f6eb 100644
> --- a/policy/modules/kernel/files.if
> +++ b/policy/modules/kernel/files.if
> @@ -6739,6 +6739,25 @@ interface(`files_relabel_all_pid_dirs',`
>
> ########################################
> ## <summary>
> +## Relabel to/from all var_run (pid) socket files
> +## </summary>
> +## <param name="domain">
> +## <summary>
> +## Domain alloed access.
> +## </summary>
> +## </param>
> +#
> +interface(`files_relabel_all_pid_sock_files',`
> + gen_require(`
> + attribute pidfile;
> + ')
> +
> + relabel_sock_files_pattern($1, pidfile, pidfile)
> +')
> +
> +
> +########################################
> +## <summary>
> ## Relabel to/from all var_run (pid) files and directories
> ## </summary>
> ## <param name="domain">
> diff --git a/policy/modules/system/init.te b/policy/modules/system/init.te
> index dbc31d1d..be5157d4 100644
> --- a/policy/modules/system/init.te
> +++ b/policy/modules/system/init.te
> @@ -279,6 +279,7 @@ ifdef(`init_systemd',`
> files_mounton_root(init_t)
> files_search_pids(init_t)
> files_relabel_all_pids(init_t)
> + files_relabel_all_pid_sock_files(init_t)
> files_relabelto_etc_runtime_dirs(init_t)
> files_relabelto_etc_runtime_files(init_t)
> files_read_all_locks(init_t)
Merged.
--
Chris PeBenito