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2.05b segfaults on extremely long "for" lists
From: |
Kelledin |
Subject: |
2.05b segfaults on extremely long "for" lists |
Date: |
Fri, 19 Jul 2002 07:27:24 -0500 |
User-agent: |
KMail/1.4.2 |
Configuration Information [Automatically generated, do not change]:
Machine: i486
OS: linux-gnu
Compiler: gcc
Compilation CFLAGS: -DPROGRAM='bash' -DCONF_HOSTTYPE='i486'
-DCONF_OSTYPE='linux-gnu' -DCONF_MACHTYPE='i486-incept-linux-gnu'
-DCONF_VENDOR='incept' -DSHELL -DHAVE_CONFIG_H -I. -I. -I./include -I./lib
-O2 -march=i486
uname output: Linux valhalla 2.4.18-1 #4 Mon Jun 10 22:08:58 CDT 2002 i686
AuthenticAMD
Machine Type: i486-incept-linux-gnu
Bash Version: 2.05b
Patch Level: 0
Release Status: release
Description:
If I cause bash to run through a for loop with a great many arguments, it
segfaults. Probably an overflow somewhere...
Repeat-By:
I managed to force a segfault with the following test:
[ kelledin@valhalla ~ ] # for FNAME in /usr/share/* \
> /usr/share/*/*/* \
> /usr/share/*/*/*/* \
> /usr/share/*/*/*/*/*; do
> file $FNAME;
> done
On my system, this gives the for loop 17,924 items to work on.
bash-2.05a holds up just fine; bash-2.05b segfaults.
Fix:
[Description of how to fix the problem. If you don't know a
fix for the problem, don't include this section.]
- 2.05b segfaults on extremely long "for" lists,
Kelledin <=