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Re: segfault


From: Chet Ramey
Subject: Re: segfault
Date: Wed, 22 Aug 2012 11:59:24 -0400
User-agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.7; rv:14.0) Gecko/20120713 Thunderbird/14.0

On 8/22/12 7:28 AM, address@hidden wrote:
> 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

Thanks for the report.  Try the attached patch; it fixes the problem
for me.

Chet

-- 
``The lyf so short, the craft so long to lerne.'' - Chaucer
                 ``Ars longa, vita brevis'' - Hippocrates
Chet Ramey, ITS, CWRU    address@hidden    http://cnswww.cns.cwru.edu/~chet/

Attachment: read-escape-segfault.patch
Description: Source code patch


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