Hi Daniel,
I have checked the file_contexts file
* #grep :login_exec_t contexts/files/file_contexts*
/bin/login -- system_u:object_r:login_exec_t:s0
/bin/login\.shadow -- system_u:object_r:login_exec_t:s0
/bin/login\.tinylogin -- system_u:object_r:login_exec_t:s0
/usr/kerberos/sbin/login\.krb5 -- system_u:object_r:login_exec_t:s0
Now If I run with permissive mode. I Could see below login programs are
running
(Here I gave unconfined_r as role and s0 as range)
* 1109 root 3540 S /bin/login --*
* 1111 root 0 SW [kauditd]*
* 1113 root 3020 S -sh*
But when I run with enforcing mode I get same error
*arm-cortex-a15 login: root*
*Last login: Tue Aug 18 11:36:58 UTC 2015 on console*
*Would you like to enter a security context? [N] Y*
*role: unconfined_r*
*level: s0*
*[ 1252.885468] type=1400 audit(1439898856.140:13): avc: denied {
transition } for pid=1120 comm="login" path="/bin/bash"
dev="mmcblk0"
ino=58115 scontext=system_u:system_r:init_t:s0
tcontext=unconfined_u:unconfined_r:unconfined_t:s0 tclass=process*
*[ 1252.887219] type=1400 audit(1439898856.140:14): avc: denied {
transition } for pid=1120 comm="login" path="/bin/bash"
dev="mmcblk0"
ino=58115 scontext=system_u:system_r:init_t:s0
tcontext=unconfined_u:unconfined_r:unconfined_t:s0 tclass=process*
*Cannot execute /bin/sh: Permission denied*
*MontaVista Carrier Grade Linux 7.0.0 arm-cortex-a15 /dev/console*
*arm-cortex-a15 login:*
*Please guide me what is going wrong and how to resolve this issue.*
*Thanks,*
*Srinivas.*
On Tue, Aug 18, 2015 at 6:52 PM, Daniel J Walsh <dwalsh(a)redhat.com> wrote:
What is the path to the login program? What is it labeled? The
problem
is login is running with the wrong context.
It should be labeled login_exec_t
grep :login_exec_t /etc/selinux/targeted/contexts/files/file_contexts
/bin/login -- system_u:object_r:login_exec_t:s0
/usr/bin/login -- system_u:object_r:login_exec_t:s0
/usr/kerberos/sbin/login\.krb5 -- system_u:object_r:login_exec_t:s0
init_t is supposed to transition to local_login_t when executing the login
program.
On 08/18/2015 06:17 AM, Srinivasa Rao Ragolu wrote:
Hi Daniel,
Thanks for quick reply. Please find first time boot log with lableling and
reboot.
Also find second time boot log when I created /.autorelablel.
Somehow I could not able to login as root.
Your help is really appriciated.
Thanks,
Srinivas.
On Tue, Aug 18, 2015 at 6:16 PM, Daniel J Walsh <dwalsh(a)redhat.com> wrote:
> Looks like you have a labeling issue.
>
> touch /.autorelabel; reboot
>
> Should fix the issues.
>
>
>
> On 08/18/2015 04:53 AM, Srinivasa Rao Ragolu wrote:
>
> Hi All,
>
> I have very new to selinux. Today I have ported selinux to my embedded
> platform with targeted policy+enforcing.
>
> When I try to boot, it completes labeling filesystem. But I could not
> able to login using root.. See my error log...
>
> *arm-cortex-a15 login: root*
> *Last login: Tue Aug 18 11:36:58 UTC 2015 on console*
> *Would you like to enter a security context? [N] Y*
> *role: unconfined_r*
> *level: s0*
> *[ 1252.885468] type=1400 audit(1439898856.140:13): avc: denied {
> transition } for pid=1120 comm="login" path="/bin/bash"
dev="mmcblk0"
> ino=58115 scontext=system_u:system_r:init_t:s0
> tcontext=unconfined_u:unconfined_r:unconfined_t:s0 tclass=process*
> *[ 1252.887219] type=1400 audit(1439898856.140:14): avc: denied {
> transition } for pid=1120 comm="login" path="/bin/bash"
dev="mmcblk0"
> ino=58115 scontext=system_u:system_r:init_t:s0
> tcontext=unconfined_u:unconfined_r:unconfined_t:s0 tclass=process*
> *Cannot execute /bin/sh: Permission denied*
>
> *MontaVista Carrier Grade Linux 7.0.0 arm-cortex-a15 /dev/console*
>
> *arm-cortex-a15 login:*
>
> Please help me.. How can I solve this issue and achieve normal boot.
>
>
> Thanks,
> Srinivas.
>
>
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