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Bug 1707138 - SELinux is preventing /var/lib/pcp/pmdas/linux/pmdalinux from unix_read access on the semaphore labeled postgresql_t.
Summary: SELinux is preventing /var/lib/pcp/pmdas/linux/pmdalinux from unix_read acces...
Keywords:
Status: CLOSED DUPLICATE of bug 1647308
Alias: None
Product: Red Hat Enterprise Linux 7
Classification: Red Hat
Component: pcp
Version: 7.6
Hardware: Unspecified
OS: Unspecified
unspecified
medium
Target Milestone: rc
: ---
Assignee: pcp-maint
QA Contact: qe-baseos-tools-bugs
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2019-05-06 21:24 UTC by Ryan Blakley
Modified: 2019-05-10 02:05 UTC (History)
6 users (show)

Fixed In Version:
Doc Type: If docs needed, set a value
Doc Text:
Clone Of:
Environment:
Last Closed: 2019-05-10 02:05:19 UTC
Target Upstream Version:
Embargoed:

Attachments (Terms of Use)

Description Ryan Blakley 2019-05-06 21:24:50 UTC 
Description of problem: SELinux is preventing /var/lib/pcp/pmdas/linux/pmdalinux from unix_read access on the semaphore labeled postgresql_t.

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

If you believe that pmdalinux should be allowed unix_read access on sem labeled postgresql_t 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:
# ausearch -c 'pmdalinux' --raw | audit2allow -M my-pmdalinux
# semodule -i my-pmdalinux.pp


Additional Information:
Source Context                system_u:system_r:pcp_pmcd_t:s0
Target Context                system_u:system_r:postgresql_t:s0
Target Objects                Unknown [ sem ]
Source                        pmdalinux
Source Path                   /var/lib/pcp/pmdas/linux/pmdalinux
Port                          <Unknown>
Host                          (removed)
Source RPM Packages           pcp-4.1.0-5.el7_6.x86_64
Target RPM Packages
Policy RPM                    selinux-policy-3.13.1-229.el7_6.9.noarch
Selinux Enabled               True
Policy Type                   targeted
Enforcing Mode                Enforcing
Host Name                     (removed)
Platform                      Linux (removed)
                              3.10.0-957.1.3.el7.x86_64 #1 SMP Thu Nov 15
                              17:36:42 UTC 2018 x86_64 x86_64
Alert Count                   567903
First Seen                    2019-02-02 21:47:23 EST
Last Seen                     2019-05-03 09:42:01 EDT
Local ID                      07cd1f19-d3ab-4af1-a35b-aecd62e849f5

Raw Audit Messages
type=AVC msg=audit(1556890921.92:3681779): avc:  denied  { unix_read } for  pid=5798 comm="pmdalinux" key=5432003  scontext=system_u:system_r:pcp_pmcd_t:s0 tcontext=system_u:system_r:postgresql_t:s0 tclass=sem permissive=0


type=SYSCALL msg=audit(1556890921.92:3681779): arch=x86_64 syscall=semctl success=no exit=EACCES a0=3 a1=0 a2=12 a3=7ffca8a34c60 items=0 ppid=5760 pid=5798 auid=4294967295 uid=0 gid=0 euid=0 suid=0 fsuid=0 egid=0 sgid=0 fsgid=0 tty=(none) ses=4294967295 comm=pmdalinux exe=/var/lib/pcp/pmdas/linux/pmdalinux subj=system_u:system_r:pcp_pmcd_t:s0 key=(null)


Additional info: 
Found a similar bz in fedora that was for shm instead of sem, not sure if it helps or not. https://bugzilla.redhat.com/show_bug.cgi?id=1618756
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