bashbug called sendmail, a link to exim4 which silently ignored the
following (which is a bug in its own right) so I'll post this manually
instead.
I found two one-liners which crash bash.
Configuration Information [Automatically generated, do not change]:
Machine: x86_64
OS: linux-gnu
Compiler: gcc
Compilation CFLAGS: -DPROGRAM='bash' -DCONF_HOSTTYPE='x86_64' -
DCONF_OSTYPE='linux-gnu' -DCONF_MACHTYPE='x86_64-pc-linux-gnu' -
DCONF_VENDOR='pc' -DLOCALEDIR='/usr/share/locale' -DPACKAGE='bash' -
DSHELL -DHAVE_CONFIG_H -I. -I../bash -I../bash/include -I../bash/
lib -g -O2 -Wall
uname output: Linux Rackspace-PBR 2.6.31-19-generic #56-Ubuntu SMP Thu
Jan 28 02:39:34 UTC 2010 x86_64 GNU/Linux
Machine Type: x86_64-pc-linux-gnu
Bash Version: 4.0
Patch Level: 33
Release Status: release
Description:
I was looking for the simplest way to clear the entire aliases
array and found a crash bug instead.
I Checked a few other cases and found a second case that
crashes bash as well.
Bash dies with a segmentation fault anytime I type in either
"BASH_ALIASES=" or "BASH_CMDS="
Repeat-By:
Type "B A S H _ A L I A S E S =" (without spaces) and then
enter, at the command line.
Or, "B A S H _ C M D S =" (without spaces) for a fun variant.
Fix:
My fix is sending you guys this 'bashbug' crash report. Then
re-sending it so it really got to you all.
Feel free to follow up if you have any questions.
-pbr
