From: Dan Carpenter dan.carpenter@oracle.com
[ Upstream commit 391119fb5c5c4bdb4d57c7ffeb5e8d18560783d1 ]
The "skb" is freed by the transmit code in cxgb4_ofld_send() and we shouldn't use it again. But in the current code, if we hit an error later on in the function then the clean up code will call kfree_skb(skb) and so it causes a double free.
Set the "skb" to NULL and that makes the kfree_skb() a no-op.
Fixes: d25f2f71f653 ("crypto: chtls - Program the TLS session Key") Signed-off-by: Dan Carpenter dan.carpenter@oracle.com Link: https://lore.kernel.org/r/X8ilb6PtBRLWiSHp@mwanda Signed-off-by: Jakub Kicinski kuba@kernel.org Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/crypto/chelsio/chtls/chtls_hw.c | 1 + 1 file changed, 1 insertion(+)
--- a/drivers/crypto/chelsio/chtls/chtls_hw.c +++ b/drivers/crypto/chelsio/chtls/chtls_hw.c @@ -391,6 +391,7 @@ int chtls_setkey(struct chtls_sock *csk, csk->wr_unacked += DIV_ROUND_UP(len, 16); enqueue_wr(csk, skb); cxgb4_ofld_send(csk->egress_dev, skb); + skb = NULL;
chtls_set_scmd(csk); /* Clear quiesce for Rx key */