From 52176603795c2ab7e9faf6bb94820da1b726aabd Mon Sep 17 00:00:00 2001 From: Dan Carpenter Date: Thu, 9 Feb 2017 17:18:00 +0000 Subject: [PATCH] KEYS: Use memzero_explicit() for secret data I don't think GCC has figured out how to optimize the memset() away, but they might eventually so let's future proof this code a bit. Signed-off-by: Dan Carpenter Signed-off-by: David Howells Acked-by: Mimi Zohar Signed-off-by: James Morris --- security/keys/encrypted-keys/encrypted.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/security/keys/encrypted-keys/encrypted.c b/security/keys/encrypted-keys/encrypted.c index d7a4969b2dd3..4fb315cddf5b 100644 --- a/security/keys/encrypted-keys/encrypted.c +++ b/security/keys/encrypted-keys/encrypted.c @@ -985,7 +985,7 @@ static void encrypted_destroy(struct key *key) if (!epayload) return; - memset(epayload->decrypted_data, 0, epayload->decrypted_datalen); + memzero_explicit(epayload->decrypted_data, epayload->decrypted_datalen); kfree(key->payload.data[0]); } -- 2.20.1