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In that case, I would like to request backporting both of the following commits to the LTS kernels to resolve the UAF issue: Commit b441cf3f8c4b ("xfrm: delete x->tunnel as we delete x") Commit 10deb6986484 ("xfrm: also call xfrm_state_delete_tunnel at destroy time for states that were never added") Please consider queuing them up together. Thanks, Slavin