net: atlantic: macsec: clear encryption keys from the stack

stable inclusion
from stable-v5.10.155
commit 05b222843457391683889d319afb8998c10f9562
category: bugfix
bugzilla: https://gitee.com/openeuler/kernel/issues/I7M5F4

Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=05b222843457391683889d319afb8998c10f9562



--------------------------------

[ Upstream commit 879785de ]

Commit aaab73f8 ("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 atlantic driver made a copy and did
not clear it. Fix this.

[4 Fixes tags below, all part of the same series, no need to split this]

Fixes: 9ff40a75 ("net: atlantic: MACSec ingress offload implementation")
Fixes: b8f8a0b7 ("net: atlantic: MACSec ingress offload HW bindings")
Fixes: 27736563 ("net: atlantic: MACSec egress offload implementation")
Fixes: 9d106c6d ("net: atlantic: MACSec egress offload HW bindings")
Signed-off-by: Antoine Tenart <atenart@kernel.org>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: sanglipeng <sanglipeng1@jd.com>