diff options
| -rw-r--r-- | net/key/af_key.c | 14 |
1 files changed, 12 insertions, 2 deletions
diff --git a/net/key/af_key.c b/net/key/af_key.c index 878039b9557..26d5e63c4cc 100644 --- a/net/key/af_key.c +++ b/net/key/af_key.c @@ -2784,12 +2784,22 @@ static struct sadb_msg *pfkey_get_base_msg(struct sk_buff *skb, int *errp) static inline int aalg_tmpl_set(struct xfrm_tmpl *t, struct xfrm_algo_desc *d) { - return t->aalgos & (1 << d->desc.sadb_alg_id); + unsigned int id = d->desc.sadb_alg_id; + + if (id >= sizeof(t->aalgos) * 8) + return 0; + + return (t->aalgos >> id) & 1; } static inline int ealg_tmpl_set(struct xfrm_tmpl *t, struct xfrm_algo_desc *d) { - return t->ealgos & (1 << d->desc.sadb_alg_id); + unsigned int id = d->desc.sadb_alg_id; + + if (id >= sizeof(t->ealgos) * 8) + return 0; + + return (t->ealgos >> id) & 1; } static int count_ah_combs(struct xfrm_tmpl *t) |