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SIGSEGV/core when sourcing erronous script
From: |
Christophe Blaess |
Subject: |
SIGSEGV/core when sourcing erronous script |
Date: |
Sat, 13 Dec 2003 13:25:29 +0100 |
User-agent: |
Mozilla/5.0 (X11; U; Linux i686; fr-FR; rv:1.2.1) Gecko/20030225 |
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_GNU_SOURCE -O2 -march=i386 -mcpu=i686 -g
uname output: Linux linux 2.4.20-8 #1 Thu Mar 13 17:54:28 EST 2003 i686
i686 i386 GNU/Linux
Machine Type: i386-redhat-linux-gnu
Bash Version: 2.05b
Patch Level: 0
Release Status: release
Description:
Bash get a SIGSEGV when sourcing a script containing a '((' string.
Repeat-By:
$ ulimit -c unlimited
$ echo 'a=((' > tmp.sh
$ sh
sh-2.05b$ . tmp.sh
sh: tmp.sh: line 1: syntax error near unexpected token `('
sh: tmp.sh: line 1: `a=(('
Segmentation fault (core dumped)
$ gdb /bin/sh core.4158
[...]
(gdb) bt
#0 0x08098c02 in parse_and_execute ()
#1 0x080987a7 in eval_builtin ()
#2 0x080989e3 in source_file ()
#3 0x0809f0c2 in source_builtin ()
#4 0x0806b278 in execute_command_internal ()
#5 0x0806b9fb in execute_shell_function ()
#6 0x0806ad64 in execute_command_internal ()
#7 0x08067ffa in execute_command_internal ()
#8 0x08067b14 in execute_command ()
#9 0x0805cc69 in reader_loop ()
#10 0x0805afeb in main ()
#11 0x400395cd in __libc_start_main () from /lib/libc.so.6
(gdb) quit
$
--
Christophe Blaess
http://www.blaess.org/
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