Bug 1123423
| Summary: | SELinux is preventing /usr/sbin/alsactl from 'read' accesses on the lnk_file /var/lock. | ||
|---|---|---|---|
| Product: | [Fedora] Fedora | Reporter: | Elad Alfassa <elad> |
| Component: | selinux-policy | Assignee: | Miroslav Grepl <mgrepl> |
| Status: | CLOSED ERRATA | QA Contact: | Fedora Extras Quality Assurance <extras-qa> |
| Severity: | unspecified | Docs Contact: | |
| Priority: | unspecified | ||
| Version: | 21 | CC: | b1r63r, brunorobertozanuzzo, cpanceac, decathorpe, dominick.grift, dwalsh, elad, jfrieben, khadgaray, lvrabec, mgrepl, nicolas.mailhot, pds.oganin, peljasz, rharwood, ryu.insang, sangu.fedora, scampa.giovanni, sgallagh, xiangjihan |
| Target Milestone: | --- | ||
| Target Release: | --- | ||
| Hardware: | x86_64 | ||
| OS: | Unspecified | ||
| Whiteboard: | abrt_hash:00ae93b89a84dad4907ab72d104ce7f9464f6abff609b4978df06722bf535db6 | ||
| Fixed In Version: | selinux-policy-3.13.1-78.fc21 | Doc Type: | Bug Fix |
| Doc Text: | Story Points: | --- | |
| Clone Of: | Environment: | ||
| Last Closed: | 2014-09-10 02:45:42 UTC | Type: | --- |
| Regression: | --- | Mount Type: | --- |
| Documentation: | --- | CRM: | |
| Verified Versions: | Category: | --- | |
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
| Cloudforms Team: | --- | Target Upstream Version: | |
| Embargoed: | |||
Description of problem: While updating alsa packages in today development Version-Release number of selected component: selinux-policy-3.13.1-67.fc21.noarch Additional info: reporter: libreport-2.2.3 hashmarkername: setroubleshoot kernel: 3.16.0-0.rc6.git0.1.fc21.1.x86_64 type: libreport Does alsa create a lock file? Are you able to reproduce it with # semanage permissive -a alsa_t reproduce and # ausearch -m avc -ts recent # semanage permissive -d alsa_t Description of problem: Happened during an upgrade Version-Release number of selected component: selinux-policy-3.13.1-67.fc21.noarch Additional info: reporter: libreport-2.2.3 hashmarkername: setroubleshoot kernel: 3.16.0-0.rc5.git1.1.fc21.x86_64 type: libreport In permissive,
# ausearch -m avc -ts recent -c alsactl
----
time->Wed Jul 30 18:12:25 2014
type=PROCTITLE msg=audit(1406758345.153:484): proctitle=2F7573722F7362696E2F616C736163746C002D73002D6E003139002D63002D4500414C53415F434F4E4649475F504154483D2F6574632F616C73612F616C736163746C2E636F6E66002D2D696E697466696C653D2F6C69622F616C73612F696E69742F30306D61696E00726461656D6F6E
type=SYSCALL msg=audit(1406758345.153:484): arch=c000003e syscall=2 success=yes exit=11 a0=7fb0047c47b3 a1=2 a2=7fffdc09b6fb a3=0 items=0 ppid=1 pid=758 auid=4294967295 uid=0 gid=0 euid=0 suid=0 fsuid=0 egid=0 sgid=0 fsgid=0 tty=(none) ses=4294967295 comm="alsactl" exe="/usr/sbin/alsactl" subj=system_u:system_r:alsa_t:s0 key=(null)
type=AVC msg=audit(1406758345.153:484): avc: denied { open } for pid=758 comm="alsactl" path="/run/lock/asound.state.lock" dev="tmpfs" ino=19719 scontext=system_u:system_r:alsa_t:s0 tcontext=system_u:object_r:var_lock_t:s0 tclass=file permissive=1
commit 651672a21efbb36daa2ce5284aa0c03325940d6f
Author: Miroslav Grepl <mgrepl>
Date: Thu Jul 31 09:58:27 2014 +0200
Allow alsa to create lock file to see if it fixes #1123423.
Description of problem: happens during login Version-Release number of selected component: selinux-policy-3.13.1-67.fc21.noarch Additional info: reporter: libreport-2.2.3 hashmarkername: setroubleshoot kernel: 3.16.0-0.rc7.git1.1.fc21.x86_64 type: libreport *** Bug 1123647 has been marked as a duplicate of this bug. *** *** Bug 1123469 has been marked as a duplicate of this bug. *** selinux-policy-3.13.1-77.fc21 has been submitted as an update for Fedora 21. https://admin.fedoraproject.org/updates/selinux-policy-3.13.1-77.fc21 Package selinux-policy-3.13.1-77.fc21: * should fix your issue, * was pushed to the Fedora 21 testing repository, * should be available at your local mirror within two days. Update it with: # su -c 'yum update --enablerepo=updates-testing selinux-policy-3.13.1-77.fc21' as soon as you are able to. Please go to the following url: https://admin.fedoraproject.org/updates/FEDORA-2014-9873/selinux-policy-3.13.1-77.fc21 then log in and leave karma (feedback). selinux-policy-3.13.1-78.fc21 has been submitted as an update for Fedora 21. https://admin.fedoraproject.org/updates/selinux-policy-3.13.1-78.fc21 selinux-policy-3.13.1-78.fc21 has been pushed to the Fedora 21 stable repository. If problems still persist, please make note of it in this bug report. |
Description of problem: SELinux is preventing /usr/sbin/alsactl from 'read' accesses on the lnk_file /var/lock. ***** Plugin catchall (100. confidence) suggests ************************** If you believe that alsactl should be allowed read access on the lock lnk_file 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: # grep alsactl /var/log/audit/audit.log | audit2allow -M mypol # semodule -i mypol.pp Additional Information: Source Context system_u:system_r:alsa_t:s0 Target Context system_u:object_r:var_lock_t:s0 Target Objects /var/lock [ lnk_file ] Source alsactl Source Path /usr/sbin/alsactl Port <Unknown> Host (removed) Source RPM Packages alsa-utils-1.0.28-1.fc21.x86_64 Target RPM Packages filesystem-3.2-26.fc21.x86_64 Policy RPM selinux-policy-3.13.1-66.fc21.noarch selinux- policy-3.13.1-67.fc21.noarch Selinux Enabled True Policy Type targeted Enforcing Mode Enforcing Host Name (removed) Platform Linux (removed) 3.16.0-0.rc6.git0.1.fc22.1.x86_64 #1 SMP Mon Jul 21 18:18:25 UTC 2014 x86_64 x86_64 Alert Count 1 First Seen 2014-07-25 17:18:32 CEST Last Seen 2014-07-25 17:18:32 CEST Local ID eec88119-af2b-4672-bdf0-30bd0211cebc Raw Audit Messages type=AVC msg=audit(1406301512.576:162): avc: denied { read } for pid=4796 comm="alsactl" name="lock" dev="sdb3" ino=140166 scontext=system_u:system_r:alsa_t:s0 tcontext=system_u:object_r:var_lock_t:s0 tclass=lnk_file permissive=0 type=SYSCALL msg=audit(1406301512.576:162): arch=x86_64 syscall=open success=no exit=EACCES a0=7f162c82a7b3 a1=c2 a2=1a4 a3=0 items=0 ppid=1 pid=4796 auid=4294967295 uid=0 gid=0 euid=0 suid=0 fsuid=0 egid=0 sgid=0 fsgid=0 tty=(none) ses=4294967295 comm=alsactl exe=/usr/sbin/alsactl subj=system_u:system_r:alsa_t:s0 key=(null) Hash: alsactl,alsa_t,var_lock_t,lnk_file,read Version-Release number of selected component: selinux-policy-3.13.1-66.fc21.noarch selinux-policy-3.13.1-67.fc21.noarch Additional info: reporter: libreport-2.2.3 hashmarkername: setroubleshoot kernel: 3.16.0-0.rc6.git0.1.fc22.1.x86_64 type: libreport