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Bug 1873695 - SELinux is preventing /usr/libexec/rtkit-daemon from sys_ptrace access on the cap_userns
Summary: SELinux is preventing /usr/libexec/rtkit-daemon from sys_ptrace access on the...
Keywords:
Status: CLOSED DUPLICATE of bug 1873658
Alias: None
Product: Red Hat Enterprise Linux 8
Classification: Red Hat
Component: selinux-policy
Version: 8.2
Hardware: x86_64
OS: Linux
medium
medium
Target Milestone: rc
: ---
Assignee: Zdenek Pytela
QA Contact: Milos Malik
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2020-08-29 08:46 UTC by Petr Nehez
Modified: 2020-09-29 18:33 UTC (History)
5 users (show)

Fixed In Version:
Doc Type: If docs needed, set a value
Doc Text:
Clone Of:
Environment:
Last Closed: 2020-09-29 18:33:58 UTC
Type: Bug
Target Upstream Version:
Embargoed:

Attachments (Terms of Use)

Description Petr Nehez 2020-08-29 08:46:33 UTC 
Description of problem:
This has started to appear after a recent upgrade of the package.
I have not seen it before.


How reproducible:
I don't know as it occurs randomly.

Additional info:
Source Context                system_u:system_r:rtkit_daemon_t:s0
Target Context                system_u:system_r:rtkit_daemon_t:s0
Target Objects                //465393/exe [ cap_userns ]
Source                        rtkit-daemon
Source Path                   /usr/libexec/rtkit-daemon
Port                          <Unknown>
Host                          ---
Source RPM Packages           rtkit-0.11-19.el8.x86_64
Target RPM Packages           
Policy RPM                    selinux-policy-3.14.3-41.el8_2.5.noarch
Selinux Enabled               True
Policy Type                   targeted
Enforcing Mode                Enforcing
Host Name                     ---
Platform                      Linux --- 4.18.0-193.14.3.el8_2.x86_64
                              #1 SMP Mon Jul 20 15:02:29 UTC 2020 x86_64 x86_64
Alert Count                   3
First Seen                    2020-08-28 16:48:24 CEST
Last Seen                     2020-08-28 18:05:23 CEST
Local ID                      12ee0e23-dd4b-41cb-b538-fde73170c522

Raw Audit Messages
type=AVC msg=audit(1598630723.42:3699163): avc:  denied  { sys_ptrace } for  pid=1587 comm="rtkit-daemon" capability=19  scontext=system_u:system_r:rtkit_daemon_t:s0 tcontext=system_u:system_r:rtkit_daemon_t:s0 tclass=cap_userns permissive=0


type=SYSCALL msg=audit(1598630723.42:3699163): arch=x86_64 syscall=readlink success=no exit=EACCES a0=7fff11b61670 a1=7fff11b617e0 a2=7f a3=0 items=1 ppid=1 pid=1587 auid=4294967295 uid=172 gid=172 euid=172 suid=172 fsuid=172 egid=172 sgid=172 fsgid=172 tty=(none) ses=4294967295 comm=rtkit-daemon exe=/usr/libexec/rtkit-daemon subj=system_u:system_r:rtkit_daemon_t:s0 key=(null)

type=CWD msg=audit(1598630723.42:3699163): cwd=/

type=PATH msg=audit(1598630723.42:3699163): item=0 name=//465393/exe inode=14863103 dev=00:04 mode=0120777 ouid=1000 ogid=1000 rdev=00:00 obj=unconfined_u:unconfined_r:unconfined_t:s0-s0:c0.c1023 nametype=NORMAL cap_fp=0 cap_fi=0 cap_fe=0 cap_fver=0 cap_frootid=0

Hash: rtkit-daemon,rtkit_daemon_t,rtkit_daemon_t,cap_userns,sys_ptrace
Comment 2 Petr Nehez 2020-08-31 20:43:16 UTC 
The problem is triggered (not always) when opening a page in Firefox where auto-started video (ad) is placed.
The fact is that I do have additional packages from EPEL for video playback in FF.

(example https://www.blesk.cz/clanek/zpravy-blesk-tlapky/653984/nemocna-stenata-za-10-tisic-spina-a-zapach-svedci-popsali-ksefty-mnozitelky-z-plzne.html)
Comment 3 Milos Malik 2020-09-29 18:18:35 UTC 
I believe this bug is a duplicate of BZ#1873658.
Comment 4 Zdenek Pytela 2020-09-29 18:33:58 UTC 

*** This bug has been marked as a duplicate of bug 1873658 ***
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