Red Hat Bugzilla – Bug 1004589
SELinux is preventing /usr/bin/boinc_client from using the 'execstack' accesses on a process.
Last modified: 2013-09-11 21:53:36 EDT
Description of problem: This suddenly showed up "out of the blue." I have created and installed a local policy because in this case, it seems reasonable that boinc should have access to processes of this nature. SELinux is preventing /usr/bin/boinc_client from using the 'execstack' accesses on a process. ***** Plugin catchall (100. confidence) suggests *************************** If you believe that boinc_client should be allowed execstack access on processes labeled boinc_t 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 boinc_client /var/log/audit/audit.log | audit2allow -M mypol # semodule -i mypol.pp Additional Information: Source Context system_u:system_r:boinc_t:s0 Target Context system_u:system_r:boinc_t:s0 Target Objects [ process ] Source boinc_client Source Path /usr/bin/boinc_client Port <Unknown> Host (removed) Source RPM Packages boinc-client-7.0.65-1.git79b00ef.fc19.i686 Target RPM Packages Policy RPM selinux-policy-3.12.1-73.fc19.noarch Selinux Enabled True Policy Type targeted Enforcing Mode Enforcing Host Name (removed) Platform Linux (removed) 3.10.10-200.fc19.i686.PAE #1 SMP Thu Aug 29 19:16:15 UTC 2013 i686 i686 Alert Count 8 First Seen 2013-08-02 15:22:29 PDT Last Seen 2013-09-02 14:54:51 PDT Local ID ed60734e-e7cd-495d-a8fc-ce0466c61bca Raw Audit Messages type=AVC msg=audit(1378158891.748:65): avc: denied { execstack } for pid=714 comm="boinc_client" scontext=system_u:system_r:boinc_t:s0 tcontext=system_u:system_r:boinc_t:s0 tclass=process type=SYSCALL msg=audit(1378158891.748:65): arch=i386 syscall=mprotect success=no exit=EACCES a0=bffd0000 a1=1000 a2=1000007 a3=bffd0000 items=0 ppid=709 pid=714 auid=4294967295 uid=990 gid=983 euid=990 suid=990 fsuid=990 egid=983 sgid=983 fsgid=983 ses=4294967295 tty=(none) comm=boinc_client exe=/usr/bin/boinc_client subj=system_u:system_r:boinc_t:s0 key=(null) Hash: boinc_client,boinc_t,boinc_t,process,execstack Additional info: reporter: libreport-2.1.6 hashmarkername: setroubleshoot kernel: 3.10.10-200.fc19.i686.PAE type: libreport Potential duplicate: bug 665545
Lukas, we should change the boinc policy to handle execmem/execstack better and a new boolean for it. Basically BOINC needs this access but we should allow it using booolean for a user which run BOINC without these perms.
selinux-policy-3.12.1-74.2.fc19 has been submitted as an update for Fedora 19. https://admin.fedoraproject.org/updates/selinux-policy-3.12.1-74.2.fc19
Package selinux-policy-3.12.1-74.2.fc19: * should fix your issue, * was pushed to the Fedora 19 testing repository, * should be available at your local mirror within two days. Update it with: # su -c 'yum update --enablerepo=updates-testing selinux-policy-3.12.1-74.2.fc19' as soon as you are able to. Please go to the following url: https://admin.fedoraproject.org/updates/FEDORA-2013-16231/selinux-policy-3.12.1-74.2.fc19 then log in and leave karma (feedback).
selinux-policy-3.12.1-74.2.fc19 has been pushed to the Fedora 19 stable repository. If problems still persist, please make note of it in this bug report.