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-rw-r--r--include/net/xfrm.h7
1 files changed, 6 insertions, 1 deletions
diff --git a/include/net/xfrm.h b/include/net/xfrm.h
index 58dfa82889a..1dd20cf1798 100644
--- a/include/net/xfrm.h
+++ b/include/net/xfrm.h
@@ -1188,10 +1188,15 @@ static inline int xfrm_aevent_is_on(void)
return ret;
}
+static inline int xfrm_alg_len(struct xfrm_algo *alg)
+{
+ return sizeof(*alg) + ((alg->alg_key_len + 7) / 8);
+}
+
#ifdef CONFIG_XFRM_MIGRATE
static inline struct xfrm_algo *xfrm_algo_clone(struct xfrm_algo *orig)
{
- return (struct xfrm_algo *)kmemdup(orig, sizeof(*orig) + orig->alg_key_len, GFP_KERNEL);
+ return kmemdup(orig, xfrm_alg_len(orig), GFP_KERNEL);
}
static inline void xfrm_states_put(struct xfrm_state **states, int n)