[PATCH] rcu: kasan: record and print kvfree_call_rcu call stack

qiang.zhang
2020-11-18T03:53:47Z

From: Zqiang <qiang.zhang@windriver.com>

Add kasan_record_aux_stack function for kvfree_call_rcu function to
record call stacks.

Signed-off-by: Zqiang <qiang.zhang@windriver.com>
---
kernel/rcu/tree.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/kernel/rcu/tree.c b/kernel/rcu/tree.c
index da3414522285..a252b2f0208d 100644
--- a/kernel/rcu/tree.c
+++ b/kernel/rcu/tree.c
@@ -3506,7 +3506,7 @@ void kvfree_call_rcu(struct rcu_head *head, rcu_callback_t func)
success = true;
goto unlock_return;
}
-
+ kasan_record_aux_stack(ptr);
success = kvfree_call_rcu_add_ptr_to_bulk(krcp, ptr);
if (!success) {
run_page_cache_worker(krcp);
--
2.17.1