drm/vmwgfx: Type-check lookups of fence objects

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commit f7652afa8e upstream.

A malicious caller could otherwise hand over handles to other objects
causing all sorts of interesting problems.

Testing done: Ran a Fedora 25 desktop using both Xorg and
gnome-shell/Wayland.

Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
Reviewed-by: Sinclair Yeh <syeh@vmware.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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Thomas Hellstrom 2017-03-27 11:09:08 +02:00 • committed by Greg Kroah-Hartman

parent 9c2b46e720

commit 92cc48166e

1 changed files with 50 additions and 27 deletions

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drivers/gpu/drm/vmwgfx/vmwgfx_fence.c

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