From fca3b0a1fd3ef30679da19bb1f17f1b3f045939e Mon Sep 17 00:00:00 2001 From: Antoine Tenart Date: Tue, 8 Nov 2022 16:34:58 +0100 Subject: [PATCH] net: phy: mscc: macsec: clear encryption keys when freeing a flow [ Upstream commit 1b16b3fdf675cca15a537572bac50cc5354368fc ] Commit aaab73f8fba4 ("macsec: clear encryption keys from the stack after setting up offload") made sure to clean encryption keys from the stack after setting up offloading, but the MSCC PHY driver made a copy, kept it in the flow data and did not clear it when freeing a flow. Fix this. Fixes: 28c5107aa904 ("net: phy: mscc: macsec support") Signed-off-by: Antoine Tenart Signed-off-by: Paolo Abeni Signed-off-by: Sasha Levin --- drivers/net/phy/mscc/mscc_macsec.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/net/phy/mscc/mscc_macsec.c b/drivers/net/phy/mscc/mscc_macsec.c index b7b2521..c00eef4 100644 --- a/drivers/net/phy/mscc/mscc_macsec.c +++ b/drivers/net/phy/mscc/mscc_macsec.c @@ -632,6 +632,7 @@ static void vsc8584_macsec_free_flow(struct vsc8531_private *priv, list_del(&flow->list); clear_bit(flow->index, bitmap); + memzero_explicit(flow->key, sizeof(flow->key)); kfree(flow); } -- 2.7.4