Bug 626114

Summary:

SELinux is preventing /bin/bash access to a leaked /bin/sh file descriptor.

Detailed Description:

[sh has a permissive type (boinc_project_t). This access was not denied.]

SELinux denied access requested by the sh command. It looks like this is either
a leaked descriptor or sh output was redirected to a file it is not allowed to
access. Leaks usually can be ignored since SELinux is just closing the leak and
reporting the error. The application does not use the descriptor, so it will run
properly. If this is a redirection, you will not get output in the /bin/sh. You
should generate a bugzilla on selinux-policy, and it will get routed to the
appropriate package. You can safely ignore this avc.

Allowing Access:

You can generate a local policy module to allow this access - see FAQ
(http://docs.fedoraproject.org/selinux-faq-fc5/#id2961385)

Additional Information:

Source Context                system_u:system_r:boinc_project_t:s0
Target Context                system_u:object_r:bin_t:s0
Target Objects                /bin/sh [ lnk_file ]
Source                        sh
Source Path                   /bin/bash
Port                          <Unknown>
Host                          (removed)
Source RPM Packages           bash-4.1.7-1.fc13
Target RPM Packages           bash-4.1.7-1.fc13
Policy RPM                    selinux-policy-3.7.19-47.fc13
Selinux Enabled               True
Policy Type                   targeted
Enforcing Mode                Enforcing
Plugin Name                   leaks
Host Name                     (removed)
Platform                      Linux (removed) 2.6.33.6-147.2.4.fc13.x86_64
                              #1 SMP Fri Jul 23 17:14:44 UTC 2010 x86_64 x86_64
Alert Count                   4
First Seen                    Sat 21 Aug 2010 09:24:34 PM EDT
Last Seen                     Sat 21 Aug 2010 09:24:34 PM EDT
Local ID                      8eca93ef-9534-410d-940a-3fd92254b8d4
Line Numbers                  

Raw Audit Messages            

node=(removed) type=AVC msg=audit(1282440274.769:47322): avc:  denied  { read } for  pid=11465 comm="unzip_cpufeat" name="sh" dev=dm-4 ino=1054084 scontext=system_u:system_r:boinc_project_t:s0 tcontext=system_u:object_r:bin_t:s0 tclass=lnk_file

node=(removed) type=AVC msg=audit(1282440274.769:47322): avc:  denied  { execute } for  pid=11465 comm="unzip_cpufeat" name="bash" dev=dm-4 ino=1049138 scontext=system_u:system_r:boinc_project_t:s0 tcontext=system_u:object_r:shell_exec_t:s0 tclass=file

node=(removed) type=AVC msg=audit(1282440274.769:47322): avc:  denied  { read open } for  pid=11465 comm="unzip_cpufeat" name="bash" dev=dm-4 ino=1049138 scontext=system_u:system_r:boinc_project_t:s0 tcontext=system_u:object_r:shell_exec_t:s0 tclass=file

node=(removed) type=AVC msg=audit(1282440274.769:47322): avc:  denied  { execute_no_trans } for  pid=11465 comm="unzip_cpufeat" path="/bin/bash" dev=dm-4 ino=1049138 scontext=system_u:system_r:boinc_project_t:s0 tcontext=system_u:object_r:shell_exec_t:s0 tclass=file

node=(removed) type=SYSCALL msg=audit(1282440274.769:47322): arch=c000003e syscall=59 success=yes exit=0 a0=46fe9b a1=7fffeecf4490 a2=7fffeecf57d0 a3=8 items=0 ppid=11464 pid=11465 auid=4294967295 uid=491 gid=472 euid=491 suid=491 fsuid=491 egid=472 sgid=472 fsgid=472 tty=(none) ses=4294967295 comm="sh" exe="/bin/bash" subj=system_u:system_r:boinc_project_t:s0 key=(null)



Hash String generated from  leaks,sh,boinc_project_t,bin_t,lnk_file,read
audit2allow suggests:

#============= boinc_project_t ==============
allow boinc_project_t bin_t:lnk_file read;
allow boinc_project_t shell_exec_t:file { read execute open execute_no_trans };