Jianglei Nie c7b205fbbf
net: macsec: fix potential resource leak in macsec_add_rxsa() and macsec_add_txsa() ...
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: 3cf3227a21niejianglei2021@163.com >
Signed-off-by: David S. Miller <davem@davemloft.net >
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