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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
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