linux-kernel - bdi: fix use-after-free for dev

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 for Android: free password hash cracker in your pocket

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Date:   Mon,  4 May 2020 14:47:52 +0200
From:   Christoph Hellwig <hch@....de>
To:     axboe@...nel.dk
Cc:     yuyufen@...wei.com, tj@...nel.org, jack@...e.cz,
        bvanassche@....org, tytso@....edu, hdegoede@...hat.com,
        gregkh@...uxfoundation.org, linux-block@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: bdi: fix use-after-free for dev_name(bdi->dev) v3 (resend)

Hi Jens,

can you pick up this series?

the first three patches are my take on the proposal from Yufen Yu
to fix the use after free of the device name of the bdi device.

The rest is vaguely related cleanups.

Changes since v2:
 - switch vboxsf to a shorter bdi name

Changes since v1:
 - use a static dev_name buffer inside struct backing_dev_info