drm/vmwgfx: fix memory corruption with legacy/sou connectors

Browse source

commit 8a510a5c75 upstream.

It looks like in all cases 'struct vmw_connector_state' is used.  But
only in stdu connectors, was atomic_{duplicate,destroy}_state() properly
subclassed.  Leading to writes beyond the end of the allocated connector
state block and all sorts of fun memory corruption related crashes.

Fixes: d7721ca711 "drm/vmwgfx: Connector atomic state"
Signed-off-by: Rob Clark <rclark@redhat.com>
Reviewed-by: Thomas Hellstrom <thellstrom@vmware.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

...

This commit is contained in:

Rob Clark 2018-01-17 10:16:20 -05:00 • committed by Greg Kroah-Hartman

parent a6d5930ccf

commit 8f0b1d5cff

2 changed files with 4 additions and 4 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

4

drivers/gpu/drm/vmwgfx/vmwgfx_ldu.c

View file

4

drivers/gpu/drm/vmwgfx/vmwgfx_scrn.c

View file