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Re: Another out of bounds heap read in bash completion


From: Hanno Böck
Subject: Re: Another out of bounds heap read in bash completion
Date: Fri, 10 Jul 2015 20:45:59 +0200

On Fri, 10 Jul 2015 14:41:04 -0400
Chet Ramey <address@hidden> wrote:

> On 7/10/15 2:38 PM, Hanno Böck wrote:
> > On Fri, 10 Jul 2015 14:23:25 -0400
> > Chet Ramey <address@hidden> wrote:
> > 
> >>> To reproduce:
> >>> a) compile bash with CFLAGS="-fsanitize=address -g"
> >>> b) type in a=/ a
> >>> c) go back with the cursor behind the backslash and press tab
> >>
> >> Thanks for the report.  I've attached a patch that should address
> >> the problem.  It's not in bash-4.4-alpha.
> > 
> > Can confirm the patch fixes the issue.
> > 
> > However in 4.4 alpha I still get an asan error. However the stack
> > trace is different.
> 
> Using the same reproducer?  I said that patch was not in
> bash-4.4-alpha.

A sorry, misunderstanding. I thought you meant "the bug" is not in 4.4
alpha ;-)

> If there's a different reproducer for the stack trace you're seeing,
> please send it along.  Thanks.

No, exactly same reproducer, just a different stack trace.

And if relevant: Even if I patch 4.4 alpha with your patch I get the
asan error.

-- 
Hanno Böck
http://hboeck.de/

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