Got the following output from using the newrole command on Fedora 12. Not sure where to properly report such bugs. If it helps, the rubix_remote_client_r role transition should fail (as it does) as there are no role transition rules for it. The role is associated with the current SELinux user. I believe my system just updated to the newest newrole package. [warner@Fedora12-Dev ~]$ yum info policycoreutils Loaded plugins: presto, refresh-packagekit Installed Packages Name : policycoreutils Arch : i686 Version : 2.0.78 Release : 3.fc12 Size : 3.3 M Repo : installed Error output from newrole follows: [warner@Fedora12-Dev ~]$ newrole -r rubix_remote_client_r Password: failed to exec shell : Permission denied *** glibc detected *** newrole: double free or corruption (out): 0x01726138 *** ======= Backtrace: ========= /lib/libc.so.6(-0xff836d9f)[0x233261] /lib/libselinux.so.1(freecon+0x1e)[0x9fd42e] newrole(main+0x6eb)[0x119d6b] /lib/libc.so.6(__libc_start_main+0xe6)[0x1dbbb6] newrole(+0x16f1)[0x1186f1] ======= Memory map: ======== 00117000-0011d000 r-xp 00000000 fd:00 126525 /usr/bin/newrole 0011d000-0011e000 r--p 00005000 fd:00 126525 /usr/bin/newrole 0011e000-0011f000 rw-p 00006000 fd:00 126525 /usr/bin/newrole 0011f000-00135000 r-xp 00000000 fd:00 56679 /lib/libpthread-2.11.so 00135000-00136000 r--p 00015000 fd:00 56679 /lib/libpthread-2.11.so 00136000-00137000 rw-p 00016000 fd:00 56679 /lib/libpthread-2.11.so 00137000-00139000 rw-p 00000000 00:00 0 001a5000-001c3000 r-xp 00000000 fd:00 56677 /lib/ld-2.11.so 001c3000-001c4000 r--p 0001d000 fd:00 56677 /lib/ld-2.11.so 001c4000-001c5000 rw-p 0001e000 fd:00 56677 /lib/ld-2.11.so 001c5000-00333000 r-xp 00000000 fd:00 56678 /lib/libc-2.11.so 00333000-00334000 ---p 0016e000 fd:00 56678 /lib/libc-2.11.so 00334000-00336000 r--p 0016e000 fd:00 56678 /lib/libc-2.11.so 00336000-00337000 rw-p 00170000 fd:00 56678 /lib/libc-2.11.so 00337000-0033a000 rw-p 00000000 00:00 0 0055f000-00560000 r-xp 00000000 00:00 0 [vdso] 005f6000-005fa000 r-xp 00000000 fd:00 1331 /lib/libattr.so.1.1.0 005fa000-005fb000 rw-p 00003000 fd:00 1331 /lib/libattr.so.1.1.0 0062d000-00638000 r-xp 00000000 fd:00 10441 /lib/libnss_files-2.11.so 00638000-00639000 r--p 0000a000 fd:00 10441 /lib/libnss_files-2.11.so 00639000-0063a000 rw-p 0000b000 fd:00 10441 /lib/libnss_files-2.11.so 008a3000-008a5000 r-xp 00000000 fd:00 15448 /lib/libpam_misc.so.0.82.0 008a5000-008a6000 rw-p 00001000 fd:00 15448 /lib/libpam_misc.so.0.82.0 00928000-0092c000 r-xp 00000000 fd:00 1332 /lib/libcap.so.2.16 0092c000-0092d000 rw-p 00003000 fd:00 1332 /lib/libcap.so.2.16 00992000-00995000 r-xp 00000000 fd:00 56684 /lib/libdl-2.11.so 00995000-00996000 r--p 00002000 fd:00 56684 /lib/libdl-2.11.so 00996000-00997000 rw-p 00003000 fd:00 56684 /lib/libdl-2.11.so 009f3000-00a0f000 r-xp 00000000 fd:00 56687 /lib/libselinux.so.1 00a0f000-00a10000 r--p 0001b000 fd:00 56687 /lib/libselinux.so.1 00a10000-00a11000 rw-p 0001c000 fd:00 56687 /lib/libselinux.so.1 00c8b000-00c97000 r-xp 00000000 fd:00 15447 /lib/libpam.so.0.82.1 00c97000-00c98000 rw-p 0000b000 fd:00 15447 /lib/libpam.so.0.82.1 00e6f000-00e85000 r-xp 00000000 fd:00 15446 /lib/libaudit.so.1.0.0 00e85000-00e86000 r--p 00015000 fd:00 15446 /lib/libaudit.so.1.0.0 00e86000-00e87000 rw-p 00016000 fd:00 15446 /lib/libaudit.so.1.0.0 00ea9000-00ec6000 r-xp 00000000 fd:00 51325 /lib/libgcc_s-4.4.2-20091027.so.1 00ec6000-00ec7000 rw-p 0001c000 fd:00 51325 /lib/libgcc_s-4.4.2-20091027.so.1 00f05000-00f0c000 r-xp 00000000 fd:00 56680 /lib/librt-2.11.so 00f0c000-00f0d000 r--p 00006000 fd:00 56680 /lib/librt-2.11.so 00f0d000-00f0e000 rw-p 00007000 fd:00 56680 /lib/librt-2.11.so 01724000-017a9000 rw-p 00000000 00:00 0 [heap] b7627000-b7827000 r--p 00000000 fd:00 12545 /usr/lib/locale/locale-archive b7827000-b782a000 rw-p 00000000 00:00 0 b783b000-b7842000 r--s 00000000 fd:00 10739 /usr/lib/gconv/gconv-modules.cache b7842000-b7843000 rw-p 00000000 00:00 0 bfcce000-bfce3000 rw-p 00000000 00:00 0 [stack] [warner@Fedora12-Dev ~]$