The vboxvideo causes a NULL pointer dereference inside the kernel on
kernel 4.10+ when ttm needs to make room in the video memory and tries
to evict things.
This is caused by upstream kernel commit a2ab19fed9d1 ("drm/ttm: make
eviction decision a driver callback v2") introducing a new
eviction_valuable callback which the vboxvideo driver does not define:
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit?id=a2ab19fed9d1dc5a7a2ced44f4b289885c522a8f
This commit adds a definition for this callback, fixing the crash.
Signed-off-by: Hans de Goede <[email protected]>
---
src/VBox/Additions/linux/drm/vbox_ttm.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/src/VBox/Additions/linux/drm/vbox_ttm.c
b/src/VBox/Additions/linux/drm/vbox_ttm.c
index 8925191d..95e2c872 100644
--- a/src/VBox/Additions/linux/drm/vbox_ttm.c
+++ b/src/VBox/Additions/linux/drm/vbox_ttm.c
@@ -262,6 +262,9 @@ struct ttm_bo_driver vbox_bo_driver = {
.ttm_tt_populate = vbox_ttm_tt_populate,
.ttm_tt_unpopulate = vbox_ttm_tt_unpopulate,
.init_mem_type = vbox_bo_init_mem_type,
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(4, 10, 0)
+ .eviction_valuable = ttm_bo_eviction_valuable,
+#endif
.evict_flags = vbox_bo_evict_flags,
.move = vbox_bo_move,
.verify_access = vbox_bo_verify_access,
--
2.12.2
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