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Bug 1679468

Summary: avc: denied { signull } for comm="systemd-journal"
Product: Red Hat Enterprise Linux 8 Reporter: Martin Pitt <mpitt>
Component: selinux-policyAssignee: Lukas Vrabec <lvrabec>
Status: CLOSED DUPLICATE QA Contact: Milos Malik <mmalik>
Severity: unspecified Docs Contact:
Priority: unspecified    
Version: 8.0CC: lvrabec, mgrepl, mmalik, plautrba, ssekidde, zpytela
Target Milestone: rcKeywords: Regression
Target Release: 8.0   
Hardware: All   
OS: Linux   
Whiteboard:
Fixed In Version: Doc Type: If docs needed, set a value
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2019-02-21 09:08:35 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:

Description Martin Pitt 2019-02-21 08:08:09 UTC
Description of problem:

A *very* recent update in RHEL 8.0 nightlies now causes the following SELinux violation variations at every boot:

avc:  denied  { signull } for  pid=580 comm="systemd-journal" scontext=system_u:system_r:syslogd_t:s0 tcontext=system_u:system_r:crond_t:s0-s0:c0.c1023 tclass=process permissive=0
avc:  denied  { signull } for  pid=580 comm="systemd-journal" scontext=system_u:system_r:syslogd_t:s0 tcontext=system_u:system_r:NetworkManager_t:s0 tclass=process permissive=0
avc:  denied  { signull } for  pid=580 comm="systemd-journal" scontext=system_u:system_r:syslogd_t:s0 tcontext=system_u:system_r:sshd_t:s0-s0:c0.c1023 tclass=process permissive=0
avc:  denied  { signull } for  pid=580 comm="systemd-journal" scontext=system_u:system_r:syslogd_t:s0 tcontext=system_u:system_r:sssd_t:s0 tclass=process permissive=0
avc:  denied  { signull } for  pid=580 comm="systemd-journal" scontext=system_u:system_r:syslogd_t:s0 tcontext=system_u:system_r:systemd_logind_t:s0 tclass=process permissive=0
avc:  denied  { signull } for  pid=580 comm="systemd-journal" scontext=system_u:system_r:syslogd_t:s0 tcontext=system_u:system_r:systemd_machined_t:s0 tclass=process permissive=0
avc:  denied  { signull } for  pid=580 comm="systemd-journal" scontext=system_u:system_r:syslogd_t:s0 tcontext=system_u:system_r:udev_t:s0-s0:c0.c1023 tclass=process permissive=0


Version-Release number of selected component (if applicable):

selinux-policy-targeted-3.14.1-60.el8.noarch
systemd-239-4.el8.x86_64
kernel 4.18.0-69.el8                                    

How reproducible: Always

Steps to Reproduce:
1. Boot current nightly

Additional info: Our previously built image from February 14 did not have that problem. Same systemd version, but selinux-policy version was 3.14.1-59.el8.noarch, and kernel at 4.18.0-67. So the regression is likely between the two latter.

Comment 1 Lukas Vrabec 2019-02-21 09:08:35 UTC

*** This bug has been marked as a duplicate of bug 1676923 ***