segfault

[armandsl]

Configuration Information [Automatically generated, do not change]:
Machine: i686
OS: linux-gnu
Compiler: gcc
Compilation CFLAGS:  -DPROGRAM='bash' -DCONF_HOSTTYPE='i686' 
-DCONF_OSTYPE='linux-gnu' -DCONF_MACHTYPE='i686-redhat-linux-gnu' 
-DCONF_VENDOR='redhat' -DLOCALEDIR='/usr/share/locale' -DPACKAGE='bash' -DSHELL 
-DHAVE_CONFIG_H   -I.  -I. -I./include -I./lib  -D_GNU_SOURCE -DRECYCLES_PIDS 
-DDEFAULT_PATH_VALUE='/usr/local/bin:/usr/bin'  -D_LARGEFILE_SOURCE 
-D_FILE_OFFSET_BITS=64 -O2 -g -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2 -fexceptions 
-fstack-protector --param=ssp-buffer-size=4  -m32 -march=i686 -mtune=atom 
-fasynchronous-unwind-tables
uname output: Linux windmill 3.5.1-1.fc17.i686.PAE #1 SMP Thu Aug 9 17:50:53 
UTC 2012 i686 i686 i386 GNU/Linux
Machine Type: i686-redhat-linux-gnu

Bash Version: 4.2
Patch Level: 36
Release Status: release

Description:
        segfaults on "while read -sN1 K; do echo $K; done" when baskslash and 
then enter taped twice

Repeat-By:
        run this from command line or script, tap backlslash, then enter twice

Additional info:
        excerptum from the log file when running the script rktest
        rktest[424]: segfault at 8 ip b7614ab6 sp bf856904 error 4 in 
libc-2.15.so[b7592000+1a8000]