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Did it happen on a machine where abrt* packages were installed?
# ls -Z /proc/sys/kernel/core_pattern
-rw-r--r--. root root system_u:object_r:usermodehelper_t:s0 /proc/sys/kernel/core_pattern
# cat /proc/sys/kernel/core_pattern
|/usr/libexec/abrt-hook-ccpp %s %c %p %u %g %t e
#
It is intentional:
# for I in `ldd /usr/sbin/winbindd | cut -d ' ' -f 3` ; do strings $I | grep core_pattern && echo $I ; done
/proc/sys/kernel/core_pattern
/lib64/libsmbconf.so.0
#
Executed on RHEL-7.0 machine:
# ls -Z /proc/sys/kernel/core_pattern
-rw-r--r--. root root system_u:object_r:sysctl_kernel_t:s0 /proc/sys/kernel/core_pattern
#
Executed on RHEL-7.1 machine:
# ls -Z /proc/sys/kernel/core_pattern
-rw-r--r--. root root system_u:object_r:usermodehelper_t:s0 /proc/sys/kernel/core_pattern
#
But there is not a default label for /proc/sys/kernel/core_pattern file in any el7 policy.
(In reply to Milos Malik from comment #4)
> Did it happen on a machine where abrt* packages were installed?
>
> # ls -Z /proc/sys/kernel/core_pattern
> -rw-r--r--. root root system_u:object_r:usermodehelper_t:s0
> /proc/sys/kernel/core_pattern
> # cat /proc/sys/kernel/core_pattern
> |/usr/libexec/abrt-hook-ccpp %s %c %p %u %g %t e
> #
It does not matter if abrt is installed or not; the AVCs appear on machines with abrt and without abrt too.
Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.
For information on the advisory, and where to find the updated
files, follow the link below.
If the solution does not work for you, open a new bug report.
https://rhn.redhat.com/errata/RHBA-2015-0458.html
Description of problem: When joining to Windows active directory via winbibd the following AVCs appears. It looks like it has not impact on winbind functionality because the join itself is successful. Therefore, I'm not sure if this is an selinux-policy issue or winbibd is doing something that it shouldn't. Anyhow, assigning first the bug to selinux-policy the get their expertise. Version-Release number of selected component (if applicable): selinux-policy-3.13.1-4.el7 samba-winbind-4.1.12-4.el7 How reproducible: always Steps to Reproduce: # realm join --client-software=winbind --membership-software=samba <winad.domain> Actual results: ---- time->Mon Oct 20 12:43:34 2014 type=SYSCALL msg=audit(1413823414.744:22439): arch=80000016 syscall=5 success=no exit=-13 a0=3fffc652342 a1=0 a2=0 a3=0 items=0 ppid=1 pid=28225 auid=4294967295 uid=0 gid=0 euid=0 suid=0 fsuid=0 egid=0 sgid=0 fsgid=0 tty=(none) ses=4294967295 comm="winbindd" exe="/usr/sbin/winbindd" subj=system_u:system_r:winbind_t:s0 key=(null) type=AVC msg=audit(1413823414.744:22439): avc: denied { read } for pid=28225 comm="winbindd" name="core_pattern" dev="proc" ino=385571 scontext=system_u:system_r:winbind_t:s0 tcontext=system_u:object_r:usermodehelper_t:s0 tclass=file ---- time->Mon Oct 20 12:43:34 2014 type=SYSCALL msg=audit(1413823414.744:22440): arch=80000016 syscall=5 success=no exit=-13 a0=3fffc652342 a1=0 a2=0 a3=3fffc62613c items=0 ppid=1 pid=28225 auid=4294967295 uid=0 gid=0 euid=0 suid=0 fsuid=0 egid=0 sgid=0 fsgid=0 tty=(none) ses=4294967295 comm="winbindd" exe="/usr/sbin/winbindd" subj=system_u:system_r:winbind_t:s0 key=(null) type=AVC msg=audit(1413823414.744:22440): avc: denied { read } for pid=28225 comm="winbindd" name="core_pattern" dev="proc" ino=385571 scontext=system_u:system_r:winbind_t:s0 tcontext=system_u:object_r:usermodehelper_t:s0 tclass=file ---- time->Mon Oct 20 12:43:34 2014 type=SYSCALL msg=audit(1413823414.744:22441): arch=80000016 syscall=5 success=no exit=-13 a0=3fffc652342 a1=0 a2=0 a3=3fffc62613c items=0 ppid=1 pid=28225 auid=4294967295 uid=0 gid=0 euid=0 suid=0 fsuid=0 egid=0 sgid=0 fsgid=0 tty=(none) ses=4294967295 comm="winbindd" exe="/usr/sbin/winbindd" subj=system_u:system_r:winbind_t:s0 key=(null) type=AVC msg=audit(1413823414.744:22441): avc: denied { read } for pid=28225 comm="winbindd" name="core_pattern" dev="proc" ino=385571 scontext=system_u:system_r:winbind_t:s0 tcontext=system_u:object_r:usermodehelper_t:s0 tclass=file