Description of problem: [root@nostromo ~]# gdb /bin/su GNU gdb Red Hat Linux (6.6-20.fc8rh) Copyright (C) 2006 Free Software Foundation, Inc. GDB is free software, covered by the GNU General Public License, and you are welcome to change it and/or distribute copies of it under certain conditions. Type "show copying" to see the conditions. There is absolutely no warranty for GDB. Type "show warranty" for details. This GDB was configured as "x86_64-redhat-linux-gnu"... Using host libthread_db library "/lib64/libthread_db.so.1". (gdb) set args - (gdb) run Starting program: /bin/su - warning: no loadable sections found in added symbol-file system-supplied DSO at 0x7fffde5fd000 [Thread debugging using libthread_db enabled] [New Thread 46912496221104 (LWP 1272)] Program received signal SIGSEGV, Segmentation fault. [Switching to Thread 46912496221104 (LWP 1272)] string_to_security_class (s=0x3e784132c6 "passwd") at stringrep.c:264 264 node->perms[value-1] = strdup(dentry->d_name); (gdb) bt #0 string_to_security_class (s=0x3e784132c6 "passwd") at stringrep.c:264 #1 0x0000003e78408ba0 in *selinux_check_passwd_access_internal (requested=8) at checkAccess.c:20 #2 0x00002aaaaeb0f6ca in pam_sm_authenticate (pamh=0x6092d0, flags=<value optimized out>, argc=0, argv=0x0) at pam_rootok.c:70 #3 0x0000003d9a402a97 in _pam_dispatch (pamh=0x6092d0, flags=0, choice=1) at pam_dispatch.c:83 #4 0x0000003d9a402372 in pam_authenticate (pamh=0x6092d0, flags=0) at pam_auth.c:34 #5 0x0000000000402b45 in main (argc=2, argv=0x7fffde5aff68) at su.c:341 #6 0x000000311fe1dab4 in __libc_start_main (main=0x402810 <main>, argc=2, ubp_av=0x7fffde5aff68, init=<value optimized out>, fini=<value optimized out>, rtld_fini=<value optimized out>, stack_end=0x7fffde5aff58) at libc-start.c:222 #7 0x0000000000401dd9 in _start () (gdb) Version-Release number of selected component (if applicable): coreutils-6.9-4.fc8 libselinux-2.0.24-2.fc8 How reproducible: Every time. Steps to Reproduce: 1. <as user> su - 2. <as root> su - Actual results: segfault
*** Bug 249328 has been marked as a duplicate of this bug. ***
Based on the date this bug was created, it appears to have been reported during the development of Fedora 8. In order to refocus our efforts as a project we are changing the version of this bug to '8'. If this bug still exists in rawhide, please change the version back to rawhide. (If you're unable to change the bug's version, add a comment to the bug and someone will change it for you.) Thanks for your help and we apologize for the interruption. The process we're following is outlined here: http://fedoraproject.org/wiki/BugZappers/F9CleanUp We will be following the process here: http://fedoraproject.org/wiki/BugZappers/HouseKeeping to ensure this doesn't happen again.
This is caused by pam_selinux being added to su-l file. It should not be in this file. I don't see this problem in Fedora 10, so I am going to close?