From 77971ea816ba7eee08f1c98474ef3fe05c78a4ea Mon Sep 17 00:00:00 2001 From: Sabrina Dubroca Date: Wed, 12 Sep 2018 17:44:43 +0200 Subject: [PATCH] tls: clear key material from kernel memory when do_tls_setsockopt_conf fails [ Upstream commit c844eb46b7d43c2cf760169df5ae1d5b033af338 ] Fixes: 3c4d7559159b ("tls: kernel TLS support") Signed-off-by: Sabrina Dubroca Signed-off-by: Sabrina Dubroca Signed-off-by: David S. Miller Signed-off-by: Greg Kroah-Hartman --- net/tls/tls_main.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/net/tls/tls_main.c b/net/tls/tls_main.c index 4e28210e03432..2ccf194c3ebb7 100644 --- a/net/tls/tls_main.c +++ b/net/tls/tls_main.c @@ -502,7 +502,7 @@ static int do_tls_setsockopt_conf(struct sock *sk, char __user *optval, goto out; err_crypto_info: - memset(crypto_info, 0, sizeof(*crypto_info)); + memzero_explicit(crypto_info, sizeof(union tls_crypto_context)); out: return rc; } -- 2.51.0