Description of problem:
When a non-packaged program segfaults the SELinux alert

SELinux is preventing /usr/libexec/abrt-hook-ccpp from using the setuid capability.

is generated.  Intriguingly, this happens also when the abrtd service is *disabled*.  And, of course, no coredump is created.


Version-Release number of selected component (if applicable):
abrt-2.0.3-1.fc15.x86_64
selinux-policy-3.9.16-32.fc15.noarch


How reproducible:
Always.


Steps to Reproduce:
1. Create segfault.c with the following content:
int main(void) { *(int*)0 = 0; return 0; }

2. Compile it
gcc -o segfault segfault.c

3a. Enable SELinux (setenforce Enforcing), enable abrtd (systemctl start abrtd.service) and run ./segfault

3b. Enable SELinux (setenforce Enforcing), disable abrtd (systemctl stop abrtd.service) and run ./segfault

3c. Disable SELinux (setenforce Permissive), enable abrtd (systemctl start abrtd.service) and run ./segfault

3d. Disable SELinux (setenforce Permissive), disable abrtd (systemctl stop abrtd.service) and run ./segfault

  
Actual results:
In all four cases: The above SELinux alert is reported.  In cases 3c and 3d (disabled SELinux) a coredump is created; in cases 3a and 3b (enabled SELinux) no coredump is produced.


Expected results:
A coredump is created in all four cases.  No SELinux alert is reported in any case.  abrt is not involved at all in cases 3b and 3d.


Additional info:
I am not sure if this belongs to abrt, selinux-policy or elsewhere.  But it is weird that I get alerts about abrt doing something when it should be disabled.

The detailed sealert report:
SELinux is preventing /usr/libexec/abrt-hook-ccpp from using the setuid capability.

*****  Plugin catchall (100. confidence) suggests  ***************************

If you believe that abrt-hook-ccpp should have the setuid capability 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 abrt-hook-ccpp /var/log/audit/audit.log | audit2allow -M mypol
# semodule -i mypol.pp

Additional Information:
Source Context                system_u:system_r:abrt_helper_t:s0
Target Context                system_u:system_r:abrt_helper_t:s0
Target Objects                Unknown [ capability ]
Source                        abrt-hook-ccpp
Source Path                   /usr/libexec/abrt-hook-ccpp
Port                          <Unknown>
Host                          smut
Source RPM Packages           abrt-addon-ccpp-2.0.3-1.fc15
Target RPM Packages           
Policy RPM                    selinux-policy-3.9.16-32.fc15
Selinux Enabled               True
Policy Type                   targeted
Enforcing Mode                Permissive
Host Name                     smut
Platform                      Linux smut 2.6.38.8-35.fc15.x86_64 #1 SMP Wed Jul
                              6 13:58:54 UTC 2011 x86_64 x86_64
Alert Count                   9
First Seen                    Wed 13 Jul 2011 07:22:13 PM CEST
Last Seen                     Wed 13 Jul 2011 08:25:25 PM CEST
Local ID                      bc996e38-423f-4302-a794-9bf208219381

Raw Audit Messages
type=AVC msg=audit(1310581525.657:85): avc:  denied  { setuid } for  pid=2208 comm="abrt-hook-ccpp" capability=7  scontext=system_u:system_r:abrt_helper_t:s0 tcontext=system_u:system_r:abrt_helper_t:s0 tclass=capability


type=SYSCALL msg=audit(1310581525.657:85): arch=x86_64 syscall=setresuid success=yes exit=0 a0=ffffffffffffffff a1=1f4 a2=ffffffffffffffff a3=0 items=0 ppid=5 pid=2208 auid=4294967295 uid=0 gid=0 euid=500 suid=0 fsuid=500 egid=500 sgid=0 fsgid=500 tty=(none) ses=4294967295 comm=abrt-hook-ccpp exe=/usr/libexec/abrt-hook-ccpp subj=system_u:system_r:abrt_helper_t:s0 key=(null)

Hash: abrt-hook-ccpp,abrt_helper_t,abrt_helper_t,capability,setuid

audit2allow

#============= abrt_helper_t ==============
allow abrt_helper_t self:capability setuid;

audit2allow -R

#============= abrt_helper_t ==============
allow abrt_helper_t self:capability setuid;