linux-kernel - Re: + sysctl-return-einval-if-val-violates-minmax.patch added to -mm tree

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <20190211212523.GU11489@garbanzo.do-not-panic.com>
Date:   Mon, 11 Feb 2019 13:25:23 -0800
From:   Luis Chamberlain <mcgrof@...nel.org>
To:     Christian Brauner <christian@...uner.io>
Cc:     Alexey Dobriyan <adobriyan@...il.com>, akpm@...ux-foundation.org,
        linux-kernel@...r.kernel.org, viro@...iv.linux.org.uk,
        longman@...hat.com, linux@...inikbrodowski.net,
        keescook@...omium.org, joe.lawrence@...hat.com,
        ebiederm@...ssion.com, linux-api@...r.kernel.org
Subject: Re: + sysctl-return-einval-if-val-violates-minmax.patch added to -mm
 tree

On Mon, Feb 11, 2019 at 10:19:19PM +0100, Christian Brauner wrote:
> On Tue, Feb 12, 2019 at 12:17:16AM +0300, Alexey Dobriyan wrote:
> > On Mon, Feb 11, 2019 at 01:06:32PM -0800, akpm@...ux-foundation.org wrote:
> > 
> > > @@ -2848,8 +2848,10 @@ static int __do_proc_doulongvec_minmax(v
> > 
> > > -			if ((min && val < *min) || (max && val > *max))
> > > -				continue;
> > > +			if ((min && val < *min) || (max && val > *max)) {
> > > +				err = -EINVAL;
> > 
> > I was asked to return ERANGE in kstrto*().
> 
> I think we discussed ERANGE vs EINVAL and decided EINVAL because there
> was precedence for other sysctls already.

Can you do a proper audit and see?

linux-api folks may care.

 Luis