Re: Segmentation fault bash 4.3.022

[Greg Wooledge]

On Tue, Aug 12, 2014 at 09:15:04AM -0400, Chet Ramey wrote:
> On 8/11/14, 2:21 PM, lolilolicon wrote:
> > The following code segfaults when run by bash 4.3.022
> > 
> >   set -E
> >   shopt -s lastpipe
> >   trap -- 'true' ERR
> >   true | { true | false; }
> 
> Here's a patch for those who would like to test.

On HP-UX, I get these results:

$ bash-4.2 -c 'shopt -s lastpipe; trap -- "printf x" ERR; true | { true | 
false; }'
xxSegmentation fault (core dumped)

$ bash-4.3.18 -c 'shopt -s lastpipe; trap -- "printf x" ERR; true | { true | 
false; }'
xxSegmentation fault (core dumped)

$ bash-4.3.22 -c 'shopt -s lastpipe; trap -- "printf x" ERR; true | { true | 
false; }'
xxx

$ ./bash -c 'shopt -s lastpipe; trap -- "printf x" ERR; true | { true | false; 
}'
xxx

(The patch made no difference because the seg fault was already fixed
in 4.3.22.)


On Linux, I get these results:

$ bash-4.3.22 -c 'shopt -s lastpipe; trap -- "printf x" ERR; true | { true | 
false; }'
xxSegmentation fault

$ ./bash -c 'shopt -s lastpipe; trap -- "printf x" ERR; true | { true | false; 
}'
xx./bash: wait_for: No record of process 7954
x

(The patch stopped the seg fault, and added a new error message.)