busybox 1.24.1 ash regression

[Natanael Copa]

On Thu, 29 Oct 2015 09:21:06 +0100
Natanael Copa <ncopa at alpinelinux.org> wrote:

> On Thu, 29 Oct 2015 08:16:30 +0100
> Natanael Copa <ncopa at alpinelinux.org> wrote:
> 
> > Simplfied test case:
> > 
> > 
> > foo () {
> > tr '\n' ' ' <<EOF | grep '.*' && { echo "$1" ; return 0 ; }
> > $1
> > EOF
> > }
> > 
> > foo "bar"
> > 
> > 
> > The simplified testcase works with bash, dash and busybox 1.23 ash, but
> > fails with busybox 1.24.1.
> 
> I bisected it to:
> 
> 7e66102f762a7d80715f0c7e5925433256b78cee is the first bad commit
> commit 7e66102f762a7d80715f0c7e5925433256b78cee
> Author: Denys Vlasenko <vda.linux at googlemail.com>
> Date:   Thu Feb 5 21:00:17 2015 +0100
> 
>     ash: fix a SEGV case in an invalid heredoc
>     
>     Signed-off-by: Denys Vlasenko <vda.linux at googlemail.com>
> 
> :040000 040000 971ee626cc195afe0030c037c376fe895fa683c1
> 67f020615d2eb44eff814e3bf182df07913d8ab4 M	shell

This appears relevant config:

CONFIG_UNICODE_SUPPORT=y

Disabling the CONFIG_UNICODE_SUPPORT makes the problem disappear.

-nc