Description of problem:
Login to normal user failed after yum update

Login by gdm is not possible. Login with 'su normaluser', while connected as root, exits with:
Cbash: $TMP: ambiguous redirect
bash: $TMP: ambiguous redirect
bash: [: : integer expression expected
Segmentation fault (core dumped)

Version-Release number of selected component:
bash-4.2.53-2.fc20

Additional info:
reporter:       libreport-2.2.3
backtrace_rating: 4
cmdline:        -/bin/bash -c gnome-session
crash_function: yyparse
executable:     /usr/bin/bash
kernel:         3.18.7-100.fc20.x86_64
runlevel:       N 5
type:           CCpp
uid:            1000

Truncated backtrace:
Thread no. 1 (10 frames)
 #0 yyparse at y.tab.c:1945
 #1 parse_command at eval.c:229
 #2 parse_and_execute at evalstring.c:252
 #3 _evalfile at evalfile.c:267
 #4 source_file at evalfile.c:347
 #5 source_builtin at ./source.def:192
 #6 execute_builtin at execute_cmd.c:4121
 #7 execute_builtin_or_function at execute_cmd.c:4546
 #8 execute_simple_command at execute_cmd.c:3956
 #9 execute_command_internal at execute_cmd.c:747

Potential duplicate: bug 949929