[refpolicy] [PATCH] system/selinuxutil: Allow semanage to execute its tmp files

* [refpolicy] [PATCH] system/selinuxutil: Allow semanage to execute its tmp files
@ 2017-05-08 15:46 Luis Ressel
  2017-05-08 16:03 ` Dominick Grift
  0 siblings, 1 reply; 3+ messages in thread
From: Luis Ressel @ 2017-05-08 15:46 UTC (permalink / raw)
  To: refpolicy

Since app-admin/setools-4.1.0, some python internals try to create and
execute a file in /tmp during semanage initalization, causing semanage
to crash. Here's the backtrace (with the path
"/usr/lib64/python3.4/site-packages" replaced by "py" for brevity):

Traceback (most recent call last):
  File "/usr/lib/python-exec/python3.4/semanage", line 28, in <module>
    import seobject
  File "py/seobject.py", line 34, in <module>
    import sepolicy
  File "py/sepolicy/__init__.py", line 8, in <module>
    import setools
  File "py/setools/__init__.py", line 77, in <module>
    from .infoflow import InfoFlowAnalysis
  File "py/setools/infoflow.py", line 22, in <module>
    import networkx as nx
  File "py/networkx/__init__.py", line 93, in <module>
    import networkx.linalg
  File "py/networkx/linalg/__init__.py", line 9, in <module>
    from networkx.linalg.algebraicconnectivity import *
  File "py/networkx/linalg/algebraicconnectivity.py", line 18, in <module>
    from numpy import (array, asmatrix, asarray, dot, matrix, ndarray, ones,
  File "py/numpy/__init__.py", line 180, in <module>
    from . import add_newdocs
  File "py/numpy/add_newdocs.py", line 13, in <module>
    from numpy.lib import add_newdoc
  File "py/numpy/lib/__init__.py", line 8, in <module>
    from .type_check import *
  File "py/numpy/lib/type_check.py", line 11, in <module>
    import numpy.core.numeric as _nx
  File "py/numpy/core/__init__.py", line 22, in <module>
    from . import _internal  # for freeze programs
  File "py/numpy/core/_internal.py", line 14, in <module>
    import ctypes
  File "/usr/lib64/python3.4/ctypes/__init__.py", line 541, in <module>
    _reset_cache()
  File "/usr/lib64/python3.4/ctypes/__init__.py", line 280, in _reset_cache
    CFUNCTYPE(c_int)(lambda: None)
MemoryError
---
 policy/modules/system/selinuxutil.te | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/policy/modules/system/selinuxutil.te b/policy/modules/system/selinuxutil.te
index 13213552..6380a62a 100644
--- a/policy/modules/system/selinuxutil.te
+++ b/policy/modules/system/selinuxutil.te
@@ -484,7 +484,7 @@ allow semanage_t policy_src_t:dir search;
 filetrans_pattern(semanage_t, selinux_config_t, semanage_store_t, dir, "modules")
 
 allow semanage_t semanage_tmp_t:dir manage_dir_perms;
-allow semanage_t semanage_tmp_t:file manage_file_perms;
+allow semanage_t semanage_tmp_t:file { manage_file_perms exec_file_perms };
 files_tmp_filetrans(semanage_t, semanage_tmp_t, { file dir })
 
 kernel_read_system_state(semanage_t)
-- 
2.12.2

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