Unverified Commit 36e6cd09 authored by openeuler-ci-bot's avatar openeuler-ci-bot Committed by Gitee
Browse files

!10876 drm/i915/gt: Fix potential UAF by revoke of fence registers 

Merge Pull Request from: @ci-robot 
 
PR sync from: Liu Shixin <liushixin2@huawei.com>
https://mailweb.openeuler.org/hyperkitty/list/kernel@openeuler.org/message/WAUALGRNU76KRVTUI2DFSWRNJREL74GG/ 
 
https://gitee.com/src-openeuler/kernel/issues/IAGEOK 
 
Link:https://gitee.com/openeuler/kernel/pulls/10876

 

Reviewed-by: default avatarYang Yingliang <yangyingliang@huawei.com>
Signed-off-by: default avatarYang Yingliang <yangyingliang@huawei.com>
parents f8dfc227 3ac3934b

drivers/gpu/drm/i915/gt/intel_ggtt_fencing.c

+1 −0
Original line number Diff line number Diff line
@@ -309,6 +309,7 @@ void i915_vma_revoke_fence(struct i915_vma *vma) 
		return;



	GEM_BUG_ON(fence->vma != vma);

	i915_active_wait(&fence->active);

	GEM_BUG_ON(!i915_active_is_idle(&fence->active));

	GEM_BUG_ON(atomic_read(&fence->pin_count));