linux-kernel - Re: [PATCH] base/class.c: prevent ooops due to insert/remove race

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: <20071129043307.GA4766@suse.de>
Date:	Wed, 28 Nov 2007 20:33:07 -0800
From:	Greg KH <gregkh@...e.de>
To:	Mark Lord <lkml@....ca>
Cc:	Linux Kernel <linux-kernel@...r.kernel.org>,
	Andrew Morton <akpm@...ux-foundation.org>
Subject: Re: [PATCH] base/class.c: prevent ooops due to insert/remove race

On Wed, Nov 28, 2007 at 11:00:36PM -0500, Mark Lord wrote:
> While doing insert/remove (quickly) tests on USB, I managed to trigger
> an Oops on 2.6.23.1 on the call to strlen() in make_class_name().
>
> This patch prevents this oops.
>
> There is still the larger problem of the overall race
> that caused this in the first place, but much of the rest
> of the code in class.c appears to also do NULL checks to
> avoid Oops'ing, so this continues the tradition.
>
> Signed-off-by:  Mark Lord <mlord@...ox.com>

As this is a bandage over the real problem, I'd prefer to not apply this
one right now until we find the root cause.

thanks,

greg k-h
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/