1 files changed, 1 insertions, 0 deletions

diff --git a/kernel/rcutree.c b/kernel/rcutree.c
index 3cf713a724c1..570f7530f4b3 100644
--- a/kernel/rcutree.c
+++ b/kernel/rcutree.c
@@ -1707,6 +1707,7 @@ __call_rcu(struct rcu_head *head, void (*func)(struct rcu_head *rcu),
         unsigned long flags;
         struct rcu_data *rdp;
 
+        WARN_ON_ONCE((unsigned long)head & 0x3); /* Misaligned rcu_head! */
         debug_rcu_head_queue(head);
         head->func = func;
         head->next = NULL;