linux-kernel - Re: [PATCH 1/1] Preventive patch in the proc file-system to handle NULL check.

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: <20180816131731.GB1457@garbanzo.do-not-panic.com>
Date:   Thu, 16 Aug 2018 06:17:31 -0700
From:   Luis Chamberlain <mcgrof@...nel.org>
To:     Srikanth K H <srikanth.h@...sung.com>
Cc:     keescook@...omium.org, adobriyan@...il.com,
        linux-kernel@...r.kernel.org, linux-fsdevel@...r.kernel.org
Subject: Re: [PATCH 1/1] Preventive patch in the proc file-system to handle
 NULL check.

On Thu, Aug 16, 2018 at 03:04:13PM +0530, Srikanth K H wrote:
> If the make directory for "sys" interface fail's then its
> dereferenced without even checking for its validity which
> will lead to crash, hence added preventive code to check
> for NULL and accordingly dereference.
> 
> Signed-off-by: Srikanth K H <srikanth.h@...sung.com>

Thanks for the patch! Do you have a reproducer or is this theoretical?
This will affect if it should go to stable or not.

  Luis