linux-kernel - Re: [PATCH] dma-buf: fix debugfs versus rcu and fence dumping v2

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: <154411550724.26970.8541642329782166943@skylake-alporthouse-com>
Date:   Thu, 06 Dec 2018 16:58:27 +0000
From:   Chris Wilson <chris@...is-wilson.co.uk>
To:     jglisse@...hat.com, linux-kernel@...r.kernel.org
Cc:     Daniel Vetter <daniel.vetter@...ll.ch>,
        dri-devel@...ts.freedesktop.org, linaro-mm-sig@...ts.linaro.org,
        Jérôme Glisse <jglisse@...hat.com>,
        stable@...r.kernel.org,
        Stéphane Marchesin <marcheu@...omium.org>,
        Christian König <christian.koenig@....com>,
        linux-media@...r.kernel.org
Subject: Re: [PATCH] dma-buf: fix debugfs versus rcu and fence dumping v2

Quoting jglisse@...hat.com (2018-12-06 15:47:04)
> From: Jérôme Glisse <jglisse@...hat.com>
> 
> The debugfs take reference on fence without dropping them. Also the
> rcu section are not well balance. Fix all that ...

Wouldn't the code be a lot simpler (and a consistent snapshot) if it used
reservation_object_get_fences_rcu()?
-Chris