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Description of problem: SELinux is preventing /usr/sbin/nscd from map access on the file /etc/group time->Thu Jul 12 08:34:20 2018 type=PROCTITLE msg=audit(1531398860.144:717): proctitle="/usr/sbin/nscd" type=SYSCALL msg=audit(1531398860.144:717): arch=c000003e syscall=9 success=no exit=-13 a0=0 a1=231 a2=1 a3=1 items=0 ppid=5974 pid=5975 auid=4294967295 uid=0 gid=0 euid=0 suid=0 fsuid=0 egid=0 sgid=0 fsgid=0 tty=(none) ses=4294967295 comm="nscd" exe="/usr/sbin/nscd" subj=system_u:system_r:nscd_t:s0 key=(null) type=AVC msg=audit(1531398860.144:717): avc: denied { map } for pid=5975 comm="nscd" path="/etc/group" dev="vda1" ino=781799 scontext=system_u:system_r:nscd_t:s0 tcontext=system_u:object_r:passwd_file_t:s0 tclass=file permissive=0 ---- time->Thu Jul 12 08:34:20 2018 type=PROCTITLE msg=audit(1531398860.144:718): proctitle="/usr/sbin/nscd" type=SYSCALL msg=audit(1531398860.144:718): arch=c000003e syscall=9 success=no exit=-13 a0=0 a1=231 a2=1 a3=1 items=0 ppid=5974 pid=5975 auid=4294967295 uid=0 gid=0 euid=0 suid=0 fsuid=0 egid=0 sgid=0 fsgid=0 tty=(none) ses=4294967295 comm="nscd" exe="/usr/sbin/nscd" subj=system_u:system_r:nscd_t:s0 key=(null) type=AVC msg=audit(1531398860.144:718): avc: denied { map } for pid=5975 comm="nscd" path="/etc/group" dev="vda1" ino=781799 scontext=system_u:system_r:nscd_t:s0 tcontext=system_u:object_r:passwd_file_t:s0 tclass=file permissive=0 Version-Release number of selected component (if applicable): selinux-policy-3.13.1-207.el7.noarch How reproducible: Steps to Reproduce: 1. In /etc/nsswitch.conf: group: compat group_compat: files 2. systemctl start nscd 3. ausearch -m AVC -m USER_AVC -m SELINUX_ERR Actual results: SELinux is preventing /usr/sbin/nscd from map access on the file /etc/group Expected results: No AVC Additional info:
Caught in enforcing mode: ---- type=PROCTITLE msg=audit(07/12/2018 22:19:24.741:485) : proctitle=/usr/sbin/nscd type=MMAP msg=audit(07/12/2018 22:19:24.741:485) : fd=21 flags=MAP_SHARED type=SYSCALL msg=audit(07/12/2018 22:19:24.741:485) : arch=x86_64 syscall=mmap success=no exit=EACCES(Permission denied) a0=0x0 a1=0x6ce a2=PROT_READ a3=MAP_SHARED items=0 ppid=1 pid=67126 auid=unset uid=nscd gid=nscd euid=nscd suid=nscd fsuid=nscd egid=nscd sgid=nscd fsgid=nscd tty=(none) ses=unset comm=nscd exe=/usr/sbin/nscd subj=system_u:system_r:nscd_t:s0 key=(null) type=AVC msg=audit(07/12/2018 22:19:24.741:485) : avc: denied { map } for pid=67126 comm=nscd path=/etc/group dev="vda3" ino=8670767 scontext=system_u:system_r:nscd_t:s0 tcontext=system_u:object_r:passwd_file_t:s0 tclass=file permissive=0 ---- type=PROCTITLE msg=audit(07/12/2018 22:20:01.611:496) : proctitle=//usr/libexec/dbus-1/dbus-daemon-launch-helper org.fedoraproject.Setroubleshootd type=MMAP msg=audit(07/12/2018 22:20:01.611:496) : fd=4 flags=MAP_SHARED type=SYSCALL msg=audit(07/12/2018 22:20:01.611:496) : arch=x86_64 syscall=mmap success=no exit=EACCES(Permission denied) a0=0x0 a1=0x34fc8 a2=PROT_READ a3=MAP_SHARED items=0 ppid=67181 pid=67183 auid=unset uid=dbus gid=dbus euid=root suid=root fsuid=root egid=dbus sgid=dbus fsgid=dbus tty=(none) ses=unset comm=dbus-daemon-lau exe=/usr/libexec/dbus-1/dbus-daemon-launch-helper subj=system_u:system_r:system_dbusd_t:s0-s0:c0.c1023 key=(null) type=AVC msg=audit(07/12/2018 22:20:01.611:496) : avc: denied { map } for pid=67183 comm=dbus-daemon-lau path=/var/db/nscd/group dev="vda3" ino=9078131 scontext=system_u:system_r:system_dbusd_t:s0-s0:c0.c1023 tcontext=system_u:object_r:nscd_var_run_t:s0 tclass=file permissive=0 ----
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://access.redhat.com/errata/RHBA-2018:3111