segmentation fault in arithmetic expressions over arrays

[Arnon Klein]

Configuration Information [Automatically generated, do not change]:
Machine: i386
OS: linux-gnu
Compiler: i386-redhat-linux-gcc
Compilation CFLAGS:  -DPROGRAM='bash' -DCONF_HOSTTYPE='i386' 
-DCONF_OSTYPE='linux-gnu' -DCONF_MACHTYPE='i386-redhat-linux-gnu' 
-DCONF_VENDOR='redhat' -DSHELL -DHAVE_CONFIG_H  -I.  -I. -I./include 
-I./lib -D_FILE_OFFSET_BITS=64 -O2 -g -pipe -march=i386 -mcpu=i686
uname output: Linux lazuli 2.4.22-1.2115.nptlsmp #1 SMP Wed Oct 29 
15:20:01 EST 2003 i686 athlon i386 GNU/Linux
Machine Type: i386-redhat-linux-gnu

Bash Version: 2.05b
Patch Level: 0
Release Status: release

Description:
   When specifying an invalid arithmetic expression containing an array 
reference, bash terminates with a segmentation fault. The same 
expression, without array references does not crash.

Repeat-By:
   # the following crashes
   ! vals=(-17.244008)
   ! echo $((vals[0]))
   bash: -17.244008: syntax error in expression (error token is ".244008")
   Segmentation fault


   # the following does not crash
   ! val=-17.244008
   ! echo $((val))
   bash: -17.244008: syntax error in expression (error token is ".244008")