Bug 1814142 - the openhpid service triggers SELinux denials: setsched + sys_nice
Summary: the openhpid service triggers SELinux denials: setsched + sys_nice
Keywords:
Status: CLOSED DUPLICATE of bug 1811407
Alias: None
Product: Fedora
Classification: Fedora
Component: selinux-policy
Version: 32
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Zdenek Pytela
QA Contact: Fedora Extras Quality Assurance
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2020-03-17 08:15 UTC by Milos Malik
Modified: 2020-05-28 21:12 UTC (History)
6 users (show)

Fixed In Version:
Doc Type: If docs needed, set a value
Doc Text:
Clone Of:
Environment:
Last Closed: 2020-04-09 13:42:23 UTC
Type: Bug
Embargoed:

Attachments (Terms of Use)

Description Milos Malik 2020-03-17 08:15:47 UTC 
Description of problem:
 * the openhpid service runs successfully even if the denials appear

Version-Release number of selected component (if applicable):
openhpi-3.8.0-10.fc32.x86_64
openhpi-libs-3.8.0-10.fc32.x86_64
selinux-policy-3.14.5-28.fc32.noarch
selinux-policy-targeted-3.14.5-28.fc32.noarch

How reproducible:
 * always

Steps to Reproduce:
1. get a Fedora 32 machine (targeted policy is active)
2. remove the OPENHPI_UNCONFIGURED line from /etc/openhpi/openhpi.conf file
3. start the openhpid service
4. search for SELinux denials

Actual results (enforcing mode):
----
type=PROCTITLE msg=audit(03/17/2020 04:10:18.052:360) : proctitle=/usr/sbin/openhpid -c /etc/openhpi/openhpi.conf 
type=SYSCALL msg=audit(03/17/2020 04:10:18.052:360) : arch=x86_64 syscall=sched_setattr success=no exit=EACCES(Permission denied) a0=0x63e a1=0x55c86579aab0 a2=0x0 a3=0x7ff2cce78a40 items=0 ppid=1 pid=1598 auid=unset uid=root gid=root euid=root suid=root fsuid=root egid=root sgid=root fsgid=root tty=(none) ses=unset comm=openhpid exe=/usr/sbin/openhpid subj=system_u:system_r:openhpid_t:s0 key=(null) 
type=AVC msg=audit(03/17/2020 04:10:18.052:360) : avc:  denied  { setsched } for  pid=1598 comm=openhpid scontext=system_u:system_r:openhpid_t:s0 tcontext=system_u:system_r:openhpid_t:s0 tclass=process permissive=0 
type=AVC msg=audit(03/17/2020 04:10:18.052:360) : avc:  denied  { sys_nice } for  pid=1598 comm=openhpid capability=sys_nice  scontext=system_u:system_r:openhpid_t:s0 tcontext=system_u:system_r:openhpid_t:s0 tclass=capability permissive=0 
----

Expected results:
 * no SELinux denials
Comment 1 Milos Malik 2020-03-17 08:18:36 UTC 
Actual results (permissive mode):
----
type=PROCTITLE msg=audit(03/17/2020 04:17:30.146:367) : proctitle=/usr/sbin/openhpid -c /etc/openhpi/openhpi.conf 
type=SYSCALL msg=audit(03/17/2020 04:17:30.146:367) : arch=x86_64 syscall=sched_setattr success=yes exit=0 a0=0x67e a1=0x55eaa59efa80 a2=0x0 a3=0x7f479ce07a40 items=0 ppid=1 pid=1662 auid=unset uid=root gid=root euid=root suid=root fsuid=root egid=root sgid=root fsgid=root tty=(none) ses=unset comm=openhpid exe=/usr/sbin/openhpid subj=system_u:system_r:openhpid_t:s0 key=(null) 
type=AVC msg=audit(03/17/2020 04:17:30.146:367) : avc:  denied  { setsched } for  pid=1662 comm=openhpid scontext=system_u:system_r:openhpid_t:s0 tcontext=system_u:system_r:openhpid_t:s0 tclass=process permissive=1 
type=AVC msg=audit(03/17/2020 04:17:30.146:367) : avc:  denied  { sys_nice } for  pid=1662 comm=openhpid capability=sys_nice  scontext=system_u:system_r:openhpid_t:s0 tcontext=system_u:system_r:openhpid_t:s0 tclass=capability permissive=1 
----

There are no additional SELinux denials recorded on the machine.
Comment 2 Milos Malik 2020-03-17 08:31:11 UTC 
After upgrading selinux-policy* packages to 3.14.5-30.fc32 the number of SELinux denials decreases:
----
type=PROCTITLE msg=audit(03/17/2020 04:30:02.890:383) : proctitle=/usr/sbin/openhpid -c /etc/openhpi/openhpi.conf 
type=SYSCALL msg=audit(03/17/2020 04:30:02.890:383) : arch=x86_64 syscall=sched_setattr success=no exit=EACCES(Permission denied) a0=0x9bb a1=0x559a6eed9a80 a2=0x0 a3=0x7ff4cf883a40 items=0 ppid=1 pid=2491 auid=unset uid=root gid=root euid=root suid=root fsuid=root egid=root sgid=root fsgid=root tty=(none) ses=unset comm=openhpid exe=/usr/sbin/openhpid subj=system_u:system_r:openhpid_t:s0 key=(null) 
type=AVC msg=audit(03/17/2020 04:30:02.890:383) : avc:  denied  { sys_nice } for  pid=2491 comm=openhpid capability=sys_nice  scontext=system_u:system_r:openhpid_t:s0 tcontext=system_u:system_r:openhpid_t:s0 tclass=capability permissive=0 
----
Comment 3 Milos Malik 2020-03-17 08:34:57 UTC 
Following SELinux denial still appears:
----
type=PROCTITLE msg=audit(03/17/2020 04:33:53.480:388) : proctitle=/usr/sbin/openhpid -c /etc/openhpi/openhpi.conf 
type=SYSCALL msg=audit(03/17/2020 04:33:53.480:388) : arch=x86_64 syscall=sched_setattr success=yes exit=0 a0=0x9d6 a1=0x56418ff41a80 a2=0x0 a3=0x7f3f92ee4a40 items=0 ppid=1 pid=2518 auid=unset uid=root gid=root euid=root suid=root fsuid=root egid=root sgid=root fsgid=root tty=(none) ses=unset comm=openhpid exe=/usr/sbin/openhpid subj=system_u:system_r:openhpid_t:s0 key=(null) 
type=AVC msg=audit(03/17/2020 04:33:53.480:388) : avc:  denied  { sys_nice } for  pid=2518 comm=openhpid capability=sys_nice  scontext=system_u:system_r:openhpid_t:s0 tcontext=system_u:system_r:openhpid_t:s0 tclass=capability permissive=1 
----
Comment 4 Zdenek Pytela 2020-04-09 13:42:23 UTC 

*** This bug has been marked as a duplicate of bug 1811407 ***
Note You need to log in before you can comment on or make changes to this bug.