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Bug 1778126 - selinux policy prevents systemd from creating StateDirectory and CacheDirectory
Summary: selinux policy prevents systemd from creating StateDirectory and CacheDirectory
Keywords:
Status: CLOSED ERRATA
Alias: None
Product: Red Hat Enterprise Linux 8
Classification: Red Hat
Component: selinux-policy
Version: 8.2
Hardware: x86_64
OS: Linux
high
medium
Target Milestone: rc
: 8.2
Assignee: Lukas Vrabec
QA Contact: Milos Malik
URL:
Whiteboard:
: 1784064 (view as bug list)
Depends On:
Blocks: 1770025
TreeView+ depends on / blocked
 
Reported: 2019-11-29 11:02 UTC by Lars Karlitski
Modified: 2022-05-06 00:27 UTC (History)
7 users (show)

Fixed In Version:
Doc Type: If docs needed, set a value
Doc Text:
Clone Of:
Environment:
Last Closed: 2020-04-28 16:41:41 UTC
Type: Bug
Target Upstream Version:
Embargoed:
pm-rhel: mirror+

Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Red Hat Issue Tracker RHELPLAN-30582 0 None None None 2022-05-06 00:27:58 UTC
Red Hat Product Errata RHBA-2020:1773 0 None None None 2020-04-28 16:42:15 UTC

Description Lars Karlitski 2019-11-29 11:02:43 UTC 
1. The osbuild-composer service has `StateDirectory=osbuild-composer` in its unit file. selinux prevents systemd from "setattr access" on that directory:

type=PROCTITLE msg=audit(1575023618.060:796): proctitle="(composer)"
type=SYSCALL msg=audit(1575023618.060:796): arch=c000003e syscall=197 success=no exit=-13 a0=7fff001ab8a0 a1=5631b7272370 a2=0 a3=0 items=0 ppid=1 pid=6533 auid=4294967295 uid=0 gid=0 euid=0 suid=0 fsuid=0 egid=0 sgid=0 fsgid=0 tty=(none) ses=4294967295 comm="(composer)" exe="/usr/lib/systemd/systemd" subj=system_u:system_r:init_t:s0 key=(null)
type=AVC msg=audit(1575023618.060:796): avc:  denied  { setattr } for  pid=6533 comm="(composer)" name="osbuild-composer" dev="sda1" ino=9621137 scontext=system_u:system_r:init_t:s0 tcontext=system_u:object_r:var_lib_t:s0 tclass=dir permissive=0


2. osbuild-worker (a component of the same service) has `CacheDirectory=osbuild-composer` set. selinux prevents systemd from creating that:

type=PROCTITLE msg=audit(1574983004.299:583): proctitle="(d-worker)"
type=SYSCALL msg=audit(1574983004.299:583): arch=c000003e syscall=83 success=no exit=-13 a0=5631b8c02620 a1=1ed a2=5631b8b670c0 a3=0 items=0 ppid=1 pid=20032 auid=4294967295 uid=0 gid=0 euid=0 suid=0 fsuid=0 egid=0 sgid=0 fsgid=0 tty=(none) ses=4294967295 comm="(d-worker)" exe="/usr/lib/systemd/systemd" subj=system_u:system_r:init_t:s0 key=(null)
type=AVC msg=audit(1574983004.299:583): avc:  denied  { create } for  pid=20032 comm="(d-worker)" name="osbuild-composer" scontext=system_u:system_r:init_t:s0 tcontext=system_u:object_r:var_t:s0 tclass=dir permissive=0


Without this, osbuild-composer doesn't work at all. These are basic systemd features that will benefit everyone writing services.
Comment 16 Zdenek Pytela 2019-12-18 16:08:58 UTC 
*** Bug 1784064 has been marked as a duplicate of this bug. ***
Comment 37 errata-xmlrpc 2020-04-28 16:41:41 UTC 
Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory, and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

https://access.redhat.com/errata/RHBA-2020:1773
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