linux-kernel - Re: [PATCH] jffs2: Fix lock acquisition order bug in gc path

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: <CAN8TOE-9fxbc8PM8oNVBc_tUdkYBhV6jTG8_M5GdjLNGpLhKKA@mail.gmail.com>
Date:	Thu, 29 Mar 2012 08:38:41 -0700
From:	Brian Norris <computersforpeace@...il.com>
To:	Josh Cartwright <joshc@...ux.com>
Cc:	David Woodhouse <dwmw2@...radead.org>,
	linux-mtd@...ts.infradead.org, linux-kernel@...r.kernel.org,
	Artem Bityutskiy <dedekind1@...il.com>
Subject: Re: [PATCH] jffs2: Fix lock acquisition order bug in gc path

On Thu, Feb 9, 2012 at 10:50 AM, Josh Cartwright <joshc@...ux.com> wrote:
> The locking policy is such that the erase_complete_block spinlock is
> nested within the alloc_sem mutex.  This fixes a case in which the
> acquisition order was erroneously reversed.  This issue was caught by
> the following lockdep splat:

(Bump.) Anybody interested in this patch? It seemed sane to me, and I
had it sitting in my inbox. It does need a trivial rebase, BTW.

Brian
--
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/