From: Jianglei Nie niejianglei2021@163.com
[ Upstream commit c7b205fbbf3cffa374721bb7623f7aa8c46074f1 ]
init_rx_sa() allocates relevant resource for rx_sa->stats and rx_sa-> key.tfm with alloc_percpu() and macsec_alloc_tfm(). When some error occurs after init_rx_sa() is called in macsec_add_rxsa(), the function released rx_sa with kfree() without releasing rx_sa->stats and rx_sa-> key.tfm, which will lead to a resource leak.
We should call macsec_rxsa_put() instead of kfree() to decrease the ref count of rx_sa and release the relevant resource if the refcount is 0. The same bug exists in macsec_add_txsa() for tx_sa as well. This patch fixes the above two bugs.
Fixes: 3cf3227a21d1 ("net: macsec: hardware offloading infrastructure") Signed-off-by: Jianglei Nie niejianglei2021@163.com Signed-off-by: David S. Miller davem@davemloft.net Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/net/macsec.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/net/macsec.c b/drivers/net/macsec.c index 95578f04f212..f354fad05714 100644 --- a/drivers/net/macsec.c +++ b/drivers/net/macsec.c @@ -1844,7 +1844,7 @@ static int macsec_add_rxsa(struct sk_buff *skb, struct genl_info *info) return 0;
cleanup: - kfree(rx_sa); + macsec_rxsa_put(rx_sa); rtnl_unlock(); return err; } @@ -2087,7 +2087,7 @@ static int macsec_add_txsa(struct sk_buff *skb, struct genl_info *info)
cleanup: secy->operational = was_operational; - kfree(tx_sa); + macsec_txsa_put(tx_sa); rtnl_unlock(); return err; }