linux-kernel - Re: [PATCH v2] hex2bin: fix access beyond string end

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Message-ID: <alpine.LRH.2.02.2204261128220.5129@file01.intranet.prod.int.rdu2.redhat.com>
Date:   Tue, 26 Apr 2022 11:29:11 -0400 (EDT)
From:   Mikulas Patocka <mpatocka@...hat.com>
To:     Andy Shevchenko <andy.shevchenko@...il.com>
cc:     Linus Torvalds <torvalds@...ux-foundation.org>,
        Andy Shevchenko <andy@...nel.org>,
        Mimi Zohar <zohar@...ux.ibm.com>,
        device-mapper development <dm-devel@...hat.com>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Mike Snitzer <msnitzer@...hat.com>,
        Milan Broz <gmazyland@...il.com>
Subject: Re: [PATCH v2] hex2bin: fix access beyond string end



On Tue, 26 Apr 2022, Andy Shevchenko wrote:

> On Tue, Apr 26, 2022 at 08:07:44AM -0400, Mikulas Patocka wrote:
> > On Tue, 26 Apr 2022, Andy Shevchenko wrote:
> > > On Sun, Apr 24, 2022 at 10:48 PM Mikulas Patocka <mpatocka@...hat.com> wrote:
> 
> ...
> 
> > > You need to provide a Fixes tag.
> > 
> > OK. Here I resend it with the "Fixes" tag.
> 
> Still shadows error codes.
> 
> > +			return -EINVAL;
> 
> >  			return -EINVAL;

What do you mean? What's wrong with "return -EINVAL"?

Mikulas