linux-kernel - [PATCH 0/3] drm/ttm: Cleanup state in global ttm structures

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-next>] [day] [month] [year] [list]

Date:   Sun, 14 Apr 2019 23:37:26 +0000
From:   Brian Yip <itsbriany@...il.com>
To:     christian.koenig@....com
Cc:     ray.huang@....com, Jerry.Zhang@....com, airlied@...ux.ie,
        daniel@...ll.ch, dri-devel@...ts.freedesktop.org,
        linux-kernel@...r.kernel.org, Brian Yip <itsbriany@...il.com>
Subject: [PATCH 0/3] drm/ttm: Cleanup state in global ttm structures

State in global ttm structures was not properly reset on cleanup.

In the scenario where multiple drm drivers are loaded and the first one 
fails to initialize, there is an attempt to reset the global state in
the ttm structures. However, there were some attributes which were not
properly reset during this process. This resulted in a crash and 
false positive kobj initialization warnings during subsequent initialization
of these global structures.

Fix the crash and false positive kobj initialization warnings.

Brian Yip (3):
  drm/ttm: Reset num_zones on ttm_mem_global cleanup
  drm/ttm: Fix ttm_mem_glob.kobj state on cleanup
  drm/ttm: Fix ttm_bo_glob.kobj state on cleanup

 drivers/gpu/drm/ttm/ttm_bo.c     | 4 ++++
 drivers/gpu/drm/ttm/ttm_memory.c | 5 +++++
 2 files changed, 9 insertions(+)

-- 
2.20.1