Bug 1393015

Summary: SELinux is preventing /usr/bin/cdcc from read access on the file unix.
Product: Red Hat Enterprise Linux 7 Reporter: Brian J. Murrell <brian>
Component: selinux-policyAssignee: Lukas Vrabec <lvrabec>
Status: CLOSED WONTFIX QA Contact: Milos Malik <mmalik>
Severity: high Docs Contact:
Priority: unspecified    
Version: 7.2CC: lvrabec, mgrepl, mmalik, plautrba, pvrabec, ssekidde
Target Milestone: rc   
Target Release: ---   
Hardware: x86_64   
OS: Linux   
Whiteboard:
Fixed In Version: Doc Type: If docs needed, set a value
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Story Points: ---
Clone Of: Environment:
Last Closed: 2017-10-12 12:17:30 UTC Type: Bug
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:
Bug Depends On:    
Bug Blocks: 1393066    

Description Brian J. Murrell 2016-11-08 17:15:40 UTC
SELinux is preventing /usr/bin/cdcc from read access on the file unix.

*****  Plugin catchall (100. confidence) suggests   **************************

If you believe that cdcc should be allowed read access on the unix file by default.
Then you should report this as a bug.
You can generate a local policy module to allow this access.
Do
allow this access for now by executing:
# grep cdcc /var/log/audit/audit.log | audit2allow -M mypol
# semodule -i mypol.pp


Additional Information:
Source Context                system_u:system_r:cdcc_t:s0
Target Context                system_u:object_r:proc_net_t:s0
Target Objects                unix [ file ]
Source                        cdcc
Source Path                   /usr/bin/cdcc
Port                          <Unknown>
Host                          server.interlinx.bc.ca
Source RPM Packages           DCC-1.3.145-25.el7.x86_64
Target RPM Packages           
Policy RPM                    selinux-policy-3.13.1-60.el7_2.9.noarch
Selinux Enabled               True
Policy Type                   targeted
Enforcing Mode                Enforcing
Host Name                     server.interlinx.bc.ca
Platform                      Linux server.interlinx.bc.ca
                              3.10.0-327.36.3.el7.x86_64 #1 SMP Mon Oct 24
                              16:09:20 UTC 2016 x86_64 x86_64
Alert Count                   4
First Seen                    2016-10-27 04:53:26 EDT
Last Seen                     2016-11-08 04:58:36 EST
Local ID                      1d3a6fac-38ed-4640-a732-0b2ade44d0f0

Raw Audit Messages
type=AVC msg=audit(1478599116.787:59252): avc:  denied  { read } for  pid=14685 comm="cdcc" name="unix" dev="proc" ino=4026532002 scontext=system_u:system_r:cdcc_t:s0 tcontext=system_u:object_r:proc_net_t:s0 tclass=file


type=SYSCALL msg=audit(1478599116.787:59252): arch=x86_64 syscall=access success=no exit=EACCES a0=7ffcb49a7aa0 a1=4 a2=7ffcb49a7aae a3=3 items=0 ppid=14684 pid=14685 auid=4294967295 uid=0 gid=0 euid=0 suid=0 fsuid=0 egid=0 sgid=0 fsgid=0 tty=(none) ses=4294967295 comm=cdcc exe=/usr/bin/cdcc subj=system_u:system_r:cdcc_t:s0 key=(null)

Hash: cdcc,cdcc_t,proc_net_t,file,read

Comment 1 Brian J. Murrell 2016-11-08 17:18:06 UTC
Probably related:

SELinux is preventing /usr/bin/dccproc from read access on the file unix.

*****  Plugin catchall (100. confidence) suggests   **************************

If you believe that dccproc should be allowed read access on the unix file by default.
Then you should report this as a bug.
You can generate a local policy module to allow this access.
Do
allow this access for now by executing:
# grep dccproc /var/log/audit/audit.log | audit2allow -M mypol
# semodule -i mypol.pp


Additional Information:
Source Context                system_u:system_r:dcc_client_t:s0
Target Context                system_u:object_r:proc_net_t:s0
Target Objects                unix [ file ]
Source                        dccproc
Source Path                   /usr/bin/dccproc
Port                          <Unknown>
Host                          server.interlinx.bc.ca
Source RPM Packages           DCC-1.3.145-25.el7.x86_64
Target RPM Packages           
Policy RPM                    selinux-policy-3.13.1-60.el7_2.9.noarch
Selinux Enabled               True
Policy Type                   targeted
Enforcing Mode                Enforcing
Host Name                     server.interlinx.bc.ca
Platform                      Linux server.interlinx.bc.ca
                              3.10.0-327.36.3.el7.x86_64 #1 SMP Mon Oct 24
                              16:09:20 UTC 2016 x86_64 x86_64
Alert Count                   5
First Seen                    2016-10-27 04:53:26 EDT
Last Seen                     2016-11-08 04:58:36 EST
Local ID                      0dbad7b7-a9ee-4585-9aec-35065c599997

Raw Audit Messages
type=AVC msg=audit(1478599116.862:59253): avc:  denied  { read } for  pid=14687 comm="dccproc" name="unix" dev="proc" ino=4026532002 scontext=system_u:system_r:dcc_client_t:s0 tcontext=system_u:object_r:proc_net_t:s0 tclass=file


type=SYSCALL msg=audit(1478599116.862:59253): arch=x86_64 syscall=access success=no exit=EACCES a0=7fffbc8a2190 a1=4 a2=7fffbc8a219e a3=3 items=0 ppid=14684 pid=14687 auid=4294967295 uid=0 gid=0 euid=0 suid=0 fsuid=0 egid=0 sgid=0 fsgid=0 tty=(none) ses=4294967295 comm=dccproc exe=/usr/bin/dccproc subj=system_u:system_r:dcc_client_t:s0 key=(null)

Hash: dccproc,dcc_client_t,proc_net_t,file,read

Comment 2 Milos Malik 2016-11-09 06:41:11 UTC
Hi Brian, bugs 1393013, 1393015, 1393020, 1393030 have most likely the same cause. Unfortunately, I don't know it. I would appreciate if you could help me find it. Thanks for the report.

Comment 7 Lukas Vrabec 2017-10-12 12:17:30 UTC
We're going to close this bug as WONTFIX because

 * of limited capacity of selinux-policy developers
 * the bug is related to EPEL component or 3rd party SW only
 * the bug appears in unsupported configuration 

We believe this bug can be fixed via a local policy module.
For more information please see: 

 * https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/7/html/selinux_users_and_administrators_guide/sect-security-enhanced_linux-troubleshooting-fixing_problems#sect-Security-Enhanced_Linux-Fixing_Problems-Allowing_Access_audit2allow

If you disagree, please re-open the bug.

Comment 8 Lukas Vrabec 2017-10-12 12:20:42 UTC
We're going to close this bug as WONTFIX because

 * of limited capacity of selinux-policy developers
 * the bug is related to EPEL component or 3rd party SW only
 * the bug appears in unsupported configuration 

We believe this bug can be fixed via a local policy module.
For more information please see: 

 * https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/7/html/selinux_users_and_administrators_guide/sect-security-enhanced_linux-troubleshooting-fixing_problems#sect-Security-Enhanced_Linux-Fixing_Problems-Allowing_Access_audit2allow

If you disagree, please re-open the bug.