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Yuli Khodorkovskiy c3345c58a4 libsepol/cil: Verify users prior to evaluating users 
If a userlevel or userrange statement is missing from a policy,
evaluate_level_expression() and evaluate_levelrange_expression, respectively
will have a NULL pointer dereference caused by a missing level in a user.

Add cil_pre_verify() which verifies users have a valid level. Also, move loop
checking in classpermissions into cil_pre_verify().

This fixes https://github.com/SELinuxProject/cil/issues/1.

Signed-off-by: Yuli Khodorkovskiy <ykhodorkovskiy@tresys.com>
2015-05-05 16:00:03 -04:00
checkpolicy Update checkpolicy ChangeLog. 2015-04-28 08:29:44 -04:00
libselinux Move ChangeLog entry to the correct project 2015-04-21 08:49:32 -04:00
libsemanage Update libsemanage ChangeLog 2015-04-23 08:35:39 -04:00
libsepol libsepol/cil: Verify users prior to evaluating users 2015-05-05 16:00:03 -04:00
policycoreutils Update policycoreutils ChangeLog. 2015-04-16 11:41:46 -04:00
scripts Add secilc to release script. 2015-03-31 12:41:28 -04:00
secilc Add an empty relabel target to secilc Makfile. 2015-04-10 09:50:57 -04:00
sepolgen Update ChangeLogs. 2015-03-18 08:37:10 -04:00
.gitignore global: gitignore: add a couple of more editor backup filetypes 2013-02-01 12:14:57 -05:00
Android.mk Add empty top level Android.mk / CleanSpec.mk files 2015-04-16 07:54:09 -04:00
CleanSpec.mk Add empty top level Android.mk / CleanSpec.mk files 2015-04-16 07:54:09 -04:00
Makefile libsepol: Move secilc out of libsepol 2015-03-31 12:31:38 -04:00
README Add further build dependencies. 2015-02-23 09:08:13 -05:00

README 

Please submit all bug reports and patches to selinux@tycho.nsa.gov.
Subscribe via selinux-join@tycho.nsa.gov.

Build dependencies on Fedora:
yum install audit-libs-devel bison bzip2-devel dbus-devel dbus-glib-devel flex flex-devel flex-static glib2-devel libcap-devel libcap-ng-devel pam-devel pcre-devel python-devel setools-devel swig ustr-devel

To build and install everything under a private directory, run:
make DESTDIR=~/obj install install-pywrap

To install as the default system libraries and binaries
(overwriting any previously installed ones - dangerous!),
on x86_64, run:
make LIBDIR=/usr/lib64 SHLIBDIR=/lib64 install install-pywrap relabel
or on x86 (32-bit), run:
make install install-pywrap relabel

This may render your system unusable if the upstream SELinux userspace
lacks library functions or other dependencies relied upon by your
distribution.  If it breaks, you get to keep both pieces.