linux-kernel - Re: [PATCH v1 1/1] mac_pton: Don't access memory over expected length

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]

Date:   Mon, 10 Oct 2022 22:19:49 +0200
From:   Andrew Lunn <andrew@...n.ch>
To:     Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
Cc:     netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
        "David S. Miller" <davem@...emloft.net>,
        Eric Dumazet <edumazet@...gle.com>,
        Jakub Kicinski <kuba@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>,
        Andrew Morton <akpm@...ux-foundation.org>
Subject: Re: [PATCH v1 1/1] mac_pton: Don't access memory over expected length

On Wed, Oct 05, 2022 at 07:43:01PM +0300, Andy Shevchenko wrote:
> The strlen() may go too far when estimating the length of
> the given string. In some cases it may go over the boundary
> and crash the system which is the case according to the commit
> 13a55372b64e ("ARM: orion5x: Revert commit 4904dbda41c8.").
> 
> Rectify this by switching to strnlen() for the expected
> maximum length of the string.

This seems like something which should have a fixes: tag, and be
against net, not net-next.

	Andrew